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  • ...er head]] containing two [[overhead camshaft]]s, one above each of the two valves]] ...rnal combustion engine]] is one in which the entry and exit [[poppet valve|valves]] and ports are contained in the [[cylinder head]].
    1 KB (146 words) - 09:59, 27 September 2009
  • ...hows two overhead camshafts—one above each of the two [[poppet valve|valves]].]] ...[cylinder]]s, and where there are separate camshafts for inlet and exhaust valves. In engines with more than one [[cylinder bank]], such as the [[V engine]]
    3 KB (410 words) - 14:33, 24 September 2009
  • ...inder head]]s, above the combustion chambers, and drive the [[poppet valve|valves]] or [[lifter]]s directly instead of using [[pushrod]]s. ...engines today employ [[Variable Valve Timing]] and [[multi-valve|multiple valves]] to improve efficiency and power. OHC also inherently allows for greater e
    4 KB (549 words) - 18:19, 17 July 2009
  • ...d to described the mechanisms and parts which control the operation of the valves. ...s slightly in layout but still performs the task of opening and closes the valves at the time necessary for proper operation of the engine. These layouts are
    3 KB (501 words) - 00:38, 3 December 2009
  • ...g|thumb|200px|The cylinder head from a [[GMC]] [[van]]. The [[poppet valve|valves]] and part of the exhaust [[manifold (automotive engineering)|manifold]] ar ...engineering)|manifold]], for [[exhaust]] gases to travel from the exhaust valves to the exhaust manifold, and for [[antifreeze (coolant)]] to cool the head
    3 KB (415 words) - 23:56, 20 September 2009
  • ...or ''[[cam]]s'' protruding from it, one for each valve. The cams force the valves open by pressing on the valve, or on some intermediate mechanism, as they r ...nd the rotation of the [[crankshaft]] is of critical importance. Since the valves control the flow of fuel intake and exhaust, they must be opened and closed
    4 KB (658 words) - 19:44, 31 March 2009
  • ...'' refers to an [[internal combustion engine]] that has the [[poppet valve|valves]] placed in the engine block beside the [[piston]], instead of in the [[cyl ...valve-in-block" engine. It may also lead to slighly easier cooling, as the valves and operating rods are out of the way of the cylinder, making a cooling jac
    3 KB (479 words) - 22:45, 8 September 2009
  • ...ams both opening and, as opposed to springs, closing the valves--to a four valves per cylinder layout.
    1 KB (152 words) - 08:59, 8 October 2009
  • ...hows two overhead camshafts—one above each of the two [[poppet valve|valves]].]] ...r head]]s, above the [[combustion chamber]]s, and drive the [[poppet valve|valves]] or [[lifter]]s in a more direct manner, when compared with [[Overhead val
    6 KB (952 words) - 17:33, 7 August 2009
  • ...system, rather than relying on the more conventional springs to close the valves. This is in the context of [[internal combustion engine]]s. The valves in question are the ones that allow air into the cylinder and (usually diff
    3 KB (485 words) - 23:55, 15 November 2009
  • ...inder head]]s, above the combustion chambers, and drive the [[poppet valve|valves]] or [[lifter]]s directly instead of using [[pushrod]]s. This arrangement i ...engines today employ [[Variable Valve Timing]] and [[multi-valve|multiple valves]] to improve efficiency and power. OHC also inherently allows for greater e
    5 KB (694 words) - 08:50, 8 October 2009
  • ...ams both opening and, as opposed to springs, closing the valves--to a four valves per cylinder layout.
    1 KB (160 words) - 20:53, 4 November 2009
  • ...alve|Presta]] and [[Schrader valve]]s used on tires are examples of poppet valves. The Presta valve has no spring and relies on a pressure differential for o Poppet valves are used in many industrial process from controlling the flow of rocket fue
    5 KB (840 words) - 08:50, 8 October 2009
  • ...n the United States, Australia and Europe cars featuring unmuffled blowoff valves are illegal for street use. == Purpose of Relief and Blow Off Valves ==
    5 KB (742 words) - 09:19, 7 October 2009
  • ...of two-cylinder [[motorcycles]] with a 620 cc engine contrasted with side valves and a chain driven gearbox.
    654 bytes (89 words) - 08:01, 26 June 2009
  • ...acteristics. At the end of 1927, they also built a 250 cc engine with side valves and a three-speed [[transmission]]. In 1928 they are also presented models ...elescopic shock absorber and helical springs. The engine was a 175 cc with valves in the head and a gearbox with three speeds.
    2 KB (360 words) - 09:17, 1 November 2010
  • ...rm|rocker arms]] above the [[cylinder head]] to actuate the [[poppet valve|valves]]. Lifters or ''[[tappet]]s'' reside in the engine block between the camsha ...combustion engine]] is one in which the intake and exhaust [[poppet valve|valves]] and ports are contained in the [[cylinder head]].
    8 KB (1,302 words) - 08:11, 14 June 2009
  • ...p;L (5027 cc/306 in³) [[straight-4]] engine with [[multi-valve|3 valves per cylinder]] and a [[single overhead cam]]shaft. This large engine had a
    1 KB (153 words) - 11:18, 14 June 2009
  • ...design which places the camshafts within the cylinder head and drives the valves directly or through short rocker arms, called fingers. ...s to the cam-in-block valvetrain configuration in which the [[poppet valve|valves]] are placed in the engine block beside the [[pistons]]. The design was com
    10 KB (1,635 words) - 08:54, 4 August 2009
  • ...stribution desmodromica requires a special mechanism for the recall of the valves comprises a cam further (the negative of the cam drive) and a rocker that r
    1 KB (195 words) - 14:42, 17 June 2009
  • ...ves]]. The main reason for a crossflow's performance is that the ports and valves can be larger and its physical separation of the hot exhaust manifold keeps
    2 KB (272 words) - 23:31, 27 August 2010
  • |Valves and Operation || 2 overhead valves with light alloy push-rods
    2 KB (275 words) - 22:58, 27 February 2009
  • ...subsequent 851 road bike had stronger [[crankcase]]s, while the heads and valves remained the same; designed to fit above the 88 mm bore of a 748 cc version *Valves per cylinder: 4
    3 KB (386 words) - 11:33, 14 June 2009
  • ...]] had a vertical single four-stroke, 74.3 cc engine with two distribution valves and driven by two inclined camshafts in the head. The three speeds changed
    1 KB (158 words) - 19:44, 15 June 2009
  • ...1934 they started to use the ''Python Rudge'' engines that had four radial valves and avaliable in 250 cc and 350 cc. ...r production included models with engines of 175 cc, four-stroke, with the valves in the head, with a purely sporting characteristic. They then also built [[
    2 KB (283 words) - 06:53, 3 October 2016
  • ...one camshaft operating all intake valves and another operating all exhaust valves.
    4 KB (612 words) - 16:37, 13 June 2009
  • ...nge grew with the addition of the ''Glory 100'', with a 98.125 cc with the valves in the head engine and four-speed transmission, which was avaliable in a [[
    1 KB (163 words) - 22:09, 27 July 2009
  • ...motorcycles]] that built a very modern 127 cc, parallel with twin overhead valves, for that time.
    627 bytes (88 words) - 13:08, 20 April 2010
  • ...utside and exchange in bulk three gears, which followed a 200 cc bike with valves in the head, [[distribution |(mechanical)distribution]] to auctions and bil
    1 KB (170 words) - 21:55, 17 August 2009
  • ...valve distribution and a motorcycle with a 350 cc engine with distribution valves in the head. The same year they constructed an interesting motor tricycle f
    1 KB (161 words) - 13:21, 26 June 2009
  • *Cylinder: 12 valves total 2 valves per cylinder
    3 KB (356 words) - 16:06, 10 March 2009
  • ...6 cc engines two cylinder and a 173 cc single [[cylinder]] with overhead [[valves]] and using [[Della Ferrera]] linkage.
    763 bytes (99 words) - 09:47, 16 April 2010
  • ...inello''. The car had a high performance 4-[[cylinder]] [[engine]] with 12 valves and a 1100 cc capacity but it never went into mass production.
    848 bytes (115 words) - 00:14, 22 February 2011
  • ...s and later a 173 cc OHV two and four stroke engine, with the distribution valves in the head.
    761 bytes (102 words) - 11:59, 16 April 2010
  • This motorcycle had a 4-stroke engine with the camshafts and valves soaking in an oil bath. The gearbox was built in the block in bulk and shif
    797 bytes (118 words) - 01:48, 5 August 2011
  • * Camshafts directly actuate valves via bucket tappets * Two inclined valves per cylinder with near central located [[spark plug]]
    5 KB (646 words) - 14:34, 15 June 2009
  • ...cylinder engine. A year later they had a finished bike. The machine had no valves, but a spinning drive for the mixture and the exhaust was loaded and unload
    791 bytes (115 words) - 00:11, 23 October 2010
  • ...ersions from 999 cc to 1372 cc with both 8- and [[multi-valve|16-valves]].
    831 bytes (122 words) - 08:13, 8 October 2009
  • ...in & Casin]] based in [[Treviso]]. The Blackburne engine had a four-stroke valves side valve in the head in 175, 250 or 350 cc, which were available in a Tou
    828 bytes (115 words) - 18:10, 14 April 2010
  • ...(or '''multivalve''') when each cylinder has more than two [[poppet valve|valves]]. ...and fuel, and another for ''exhaust'' of combustion products. Adding more valves improves the flow of intake and exhaust gases, potentially improving combus
    5 KB (662 words) - 07:50, 7 December 2010
  • ...AR had a 498 cc two cylinder [[boxer engine]] with side and later overhead valves. From 1924 there was a 346 cc single cylinder with an [[oil-cooled]] engine
    850 bytes (114 words) - 15:36, 19 April 2010
  • ...gine. The engines were fitted with [[aluminum]] [[pistons]] and [[overhead valves]]. This fast 75 km/h car used [[brakes]] that were mounted on the rear whee
    867 bytes (118 words) - 10:57, 7 February 2012
  • ...er of bikes that could be equipped with 498 cc side valve engines with two valves for gasoline, or naphtha with three flaps to turned the engines. They were
    911 bytes (127 words) - 16:41, 9 May 2010
  • ...ugh the intake (inlet) port. The intake (inlet) [[poppet valve|valve]] (or valves) then close(s), and the following upward stroke (''compression'') compresse ...spent exhaust gases from the cylinder past the then-open exhaust valve or valves, through the exhaust port.
    11 KB (1,765 words) - 11:04, 10 November 2005
  • ...ugh the intake (inlet) port. The intake (inlet) [[poppet valve|valve]] (or valves) then close(s), and the following upward stroke (''compression'') compresse ...spent exhaust gases from the cylinder past the then-open exhaust valve or valves, through the exhaust port.
    11 KB (1,775 words) - 09:48, 2 August 2009
  • ...k of cylinders with a 60° angle between the two banks. The engine had two valves per cylinder fed through three Weber 30DCF [[carburettor]]s. A 7.5:1 [[com ...ne was further modified with [[dual overhead camshaft]]s (though still two valves per cylinder) and a two-stage supercharger. This combination gave the car
    7 KB (1,080 words) - 23:07, 7 August 2009
  • ...th motorized bikes with 125 cc and 150 cc four-stroke engine with opposing valves, built in 1926 by the Possio brothers in [[Turin]] and designed by the engi
    926 bytes (130 words) - 12:09, 19 April 2010
  • ...first single line of models were the 498, 693 and 827 cc with the [[intake valves]] on the exhaust. In 1911 they adopted the use of aluminum pistons and in 1 ...921 Borgo constructed a 477 cc V-twin overhead valve race engine with four valves per cylinder. In 1925 an engine block published a version was the last engi
    3 KB (397 words) - 06:09, 3 October 2016
  • ...ch applies to the frame of any bike. Adopting a mixing system with quite [[valves]] and original lights, ignition took place by means of [[coils]] and [[batt
    2 KB (244 words) - 07:54, 26 June 2009
  • ...disadvantages that have precluded its widespread adoption to date. Sleeve valves were used in some pre-[[World War II]] [[luxury car|luxury]], [[sports car] ==Disadvantages of poppet valves==
    9 KB (1,597 words) - 08:25, 8 October 2009
  • ...ation. Complete cylinder heads include new or reconditioned [[poppet valve|valves]], valve springs, valve guides (if applicable), valve seats (if applicable)
    876 bytes (131 words) - 08:51, 8 October 2009
  • ...n the cylinder is lowered by the action of the piston moving away from the valves (so as to expand the volume available for incoming air). In some cases the
    3 KB (403 words) - 10:27, 8 October 2009
  • ...as a single cylinder 499 cc made by ''JAP'', distributed with two overhead valves, timed by three concentric coil springs. In 1926, the Revelli is put into p
    1 KB (148 words) - 23:04, 2 October 2009
  • ...lubricants carter dry, distribution chain and double overhead camshaft, 16 valves, with indirect injection pump mechanics. ...league cup d '[[aluminium]], [[head]] alloy[[DOHC]] distribution chain , 4 valves per cylinder vertical
    4 KB (499 words) - 22:31, 23 September 2009
  • ...h 8 valves (an all alloy wet-liner engine, chain driven) and later with 16 valves (a modern iron block engine with alloy head, belt driven). All cars featuri ...s a tuned pipe that when operating at its ideal frequency-in tune with the valves, will allow a smooth and even air flow, and will assist with filling the cy
    6 KB (883 words) - 22:36, 14 June 2009
  • ...p;L (5359 cc/327 in³) [[straight-8]] engine with [[multi-valve|3 valves per cylinder]] driven by a [[single overhead cam]]shaft. Power was reporte
    2 KB (335 words) - 11:17, 14 June 2009
  • On flathead engines, valves may be installed.
    2 KB (278 words) - 22:48, 11 June 2009
  • ...arity of progression, where an irregularity occurs all 'CTS opening of the valves electronically controlled, requiring a scheme to use higher.
    2 KB (299 words) - 22:14, 28 January 2009
  • ...design which places the camshafts within the cylinder head and drives the valves directly or through short rocker arms, called fingers. ...s to the cam-in-block valvetrain configuration in which the [[poppet valve|valves]] are placed in the engine block beside the [[pistons]]. The design was com
    11 KB (1,698 words) - 08:59, 8 October 2009
  • ...num, [[distribution (mechanical )|distribution]] a parallel side valves (2 valves per cylinder) driven by a [[cam]] side (in the basement) driven by gears, d
    4 KB (489 words) - 20:23, 24 February 2009
  • ...ugh the intake (inlet) port. The intake (inlet) [[poppet valve|valve]] (or valves) then close(s), and the following upward stroke (''compression'') compresse ...spent exhaust gases from the cylinder past the then-open exhaust valve or valves, through the exhaust port.
    12 KB (1,944 words) - 22:56, 14 June 2009
  • ...ers]] in a V-cutting [[frame]], with an angle of 36 °, 598 cc, overlapping valves (with the exhaust in the head) and head reported. The clutch was housed ins
    1 KB (166 words) - 23:25, 29 November 2010
  • .../Milano Verde]], where it produced 183 hp (136 kW), still with 2 valves per cylinder. This engine was modified for [[transverse engine|transverse] The engine was upgraded to dual overhead cams and four valves per cylinder in 1993. Along with other refinements, this engine produced 2
    5 KB (604 words) - 19:25, 2 March 2009
  • |Engine || L-twin, 4 valves per cylinder Testastretta Desmodromic; liquid cooled ...anges where more extreme cam-timing is countered by oversized [[titanium]] valves with reduced diameter stems on bronze seats.
    5 KB (742 words) - 18:22, 22 February 2009
  • ...e and a limited number of [[motorcycles]] from 60 cc. The engine, with the valves in the head, were mounted on a chassis made with pressed steel.
    1 KB (193 words) - 10:46, 4 August 2011
  • ...design which places the camshafts within the cylinder head and drives the valves directly or through short rocker arms. ...refers to the pushrod valvetrain configuration in which the [[poppet valve|valves]] are placed in the engine block beside the [[pistons]]. The design was com
    11 KB (1,817 words) - 11:16, 30 January 2011
  • ...967, a race bike with a 498 cc three-cylinder four-stroke engine with four valves per cylinder with this brand name. The machine was developed for Jack Findl
    1 KB (180 words) - 07:03, 4 December 2010
  • ...d fixed base alloy d '[[aluminum]], a distribution parallel side valves (2 valves per cylinder) operated by a [[camshaft]] side (in the basement) operated by
    4 KB (553 words) - 21:23, 27 April 2009
  • ...k camshaft operates the left bank exhaust valves and the right bank intake valves. This is most similar to a [[DOHC]] Inline-6 engine. ...cast-iron [[crankcase]], one light alloy crossflow cylinder head with two valves per cylinder operated by chain-driven overhead camshafts. All fuel and igni
    13 KB (2,025 words) - 21:40, 16 July 2008
  • ...ing, and damping is achieved by the displaced fluid passing through rubber valves. The displaced fluid passes to the displacer of the paired wheel, thus pro
    2 KB (275 words) - 00:13, 8 August 2009
  • ...or a new [[Jap]] engine with four-stroke, single cylinder 175 cc with side valves for the 175 Sport bike. In 1931 they presented the bike called the ''Saetta
    2 KB (291 words) - 08:30, 20 August 2009
  • Tank, Valves Cover Engine and a most of the accessories are made with hi-tech composite
    1 KB (186 words) - 23:21, 2 October 2009
  • ...spherical combustion chamber design, the intake and exhaust [[poppet valve|valves]] are usually on opposite sides of the chamber, unlike the in-line valve ar ...rns en route to and from the chamber. With a hemispherical chamber, larger valves are possible and a straighter, less restrictive flow path can be provided f
    10 KB (1,448 words) - 21:41, 16 July 2008
  • ...k of cylinders with a 60° angle between the two banks. The endine had two valves per cylinder fed through one Weber 40DOC3 or 50WCF [[carburettor]]. With j ...ne was further modified with [[dual overhead camshaft]]s (though still two valves per cylinder) and a two-stage supercharger. This combination gave the car
    5 KB (617 words) - 22:06, 12 July 2009
  • ...els equipped with single [[cylinder]] [[engines]] from 175 to 500 cc and [[valves]] with overhead [[camshaft]], some with a rear [[suspension]] [[torsion bar
    1 KB (197 words) - 14:02, 27 November 2016
  • ...he slowest racing courses. Lampredi built a prototype with [[multivalve|4 valves per cylinder]] and 2493 cc of displacement. It produced 175 hp o ...a high-tech marvel for the time with [[dual overhead camshaft]]s pushing 2 valves per cylinder and twin-plug ignition.
    8 KB (1,137 words) - 16:43, 13 June 2009
  • ...3 20 HP, had a six cylinder engine. All the vehicles had engines with side valves and a shaft drive.
    1 KB (183 words) - 23:51, 4 June 2012
  • ...uccessful adaptation of Ducati’s [[desmodromic valve]] actuation to a four valves per cylinder engine, and began production with a 40 degree included valve a The 996 cc engine had larger 98 mm (3.9 inch) pistons, larger valves, a stronger crankshaft and crankcases from the 916 SPS. But the 916 camshaf
    6 KB (856 words) - 09:23, 18 November 2009
  • ...often more practical to have several small valves than have larger single valves.
    9 KB (1,414 words) - 23:32, 3 July 2009
  • ...l [[cylinder]], the [[combustion chamber]] was [[hemispherical]] and the [[valves]] were arranged above the cylinder head, perpendicular to the axis of the c
    1 KB (223 words) - 19:56, 22 November 2010
  • ...]], [[distribution (meccanica)|distribuzione]] to side valves parallels (2 valves for cylinder) commanded means a [[camshaft]] side to 1,800 turns/minute; nu
    5 KB (711 words) - 21:16, 10 March 2009
  • !Valves !Valves
    6 KB (745 words) - 17:25, 7 August 2009
  • * 1998 cc, [[straight-5]], [[DOHC]], [[multi-valve|4 valves per cylinder]], 145/155 PS (108.1/115.6 kW), 182/186 N·m (134/137 lb·ft) * 2446 cc, [[straight-5]], [[DOHC]], [[multi-valve|4 valves per cylinder]], 175 PS (130.5 kW), 230 N·m (170 lb·ft)
    8 KB (1,121 words) - 10:49, 18 October 2009
  • ...akes should not be confused with [[engine brake]]s, which hold the exhaust valves open, although the basic principle of operation is similar.
    3 KB (393 words) - 22:25, 22 September 2009
  • |Valves per cylinder || 2
    2 KB (183 words) - 16:21, 13 October 2009
  • ...turbo]] [[V6]] 2 [[Litre|L]] (1996 [[Cubic metre|cc]])<br>3 [[Poppet valve|valves]] per [[Cylinder (engine)|cylinder]]
    2 KB (265 words) - 16:49, 10 March 2009
  • ...iny 569cc two-main-bearing engine now had overhead valves (instead of side valves) and 16.5 hp instead of the A's measly 13 hp. If you find it hard to believ
    4 KB (569 words) - 14:49, 22 October 2010
  • ...first motorcar in the world to have an engine with four camshafts and four valves per cylinder. Boillot won the Coupe de l'Auto in 1913 and became the darlin
    3 KB (425 words) - 11:09, 15 June 2009
  • ...t. Bore and stroke were 72&nbsp;mm by 100&nbsp;mm and [[multi-valve|three valves per cylinder]] were used with a [[single overhead camshaft]].
    4 KB (534 words) - 21:27, 31 July 2009
  • ...at [[Turin]]. [[Cappa]], a young engineer, was already studying [[overhead valves]] and aluminium [[pistons]], and when their first car appeared at the [[Tur ...th an ever increasing number of technical innovations including [[overhead valves]], [[tubular conrods]], [[spherical-bearing]] mounted [[crankshaft]], alumi
    6 KB (690 words) - 06:30, 3 October 2016
  • ...]]. The valves function the same way as four-stroke exhaust [[poppet valve|valves]] do but at twice the speed. ...e engines employ a [[2-stroke power valve system|Power valve system]]. The valves are normaly in or around the exhaust ports. They work in one of two ways, e
    15 KB (2,394 words) - 23:48, 11 September 2009
  • ...t. Bore and stroke were 72&nbsp;mm by 100&nbsp;mm and [[multi-valve|three valves per cylinder]] were used with a [[single overhead camshaft]].
    4 KB (552 words) - 11:10, 14 June 2009
  • |Vales || 2 valves per cylinder, 12 valves in total
    3 KB (454 words) - 00:24, 14 November 2009
  • The PS100LE is powered by an 992&nbsp;cc L-twin cylinder, 2-valves per cylinder [[Desmodromic valve|Desmodromic]], air-cooled engine with [[Ma
    2 KB (375 words) - 11:52, 17 March 2008
  • ...so began the plans for the MCM ''500'', a single cylinder engine with side valves. [[DBM]] was also noteworthy because it was one of the first Italian motorc ...h the MC 500 (civilian version of the MCM), the VT-4 250 (mono cylindrical valves in head) and the new BT-4 500-cylinder valve in the head. Also picks up two
    4 KB (668 words) - 10:16, 25 June 2016
  • ...he Belgian FN, built in 1932, the ''RAS'' bike with 175 cc ''Japa'' engine valves in the head and a Burman three-speed transmission. The owner, [[Achille Fus ...eaching 135 km/h. The M56 SBB had a 448 cc engine with valve head with the valves operated by rockers, then followed the M25 FFT engine with 248 cc and distr
    5 KB (725 words) - 11:15, 12 February 2012

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