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- Overhead_valve abstract "An overhead valve (OHV) engine, also informally called pushrod engine or I-head engine, is a type of piston engine that places the camshaft within the cylinder block (usually beside and slightly above the crankshaft in a straight engine or directly above the crankshaft in the V of a V engine), and uses pushrods or rods to actuate rocker arms above the cylinder head to actuate the valves. Lifters or tappets are located in the engine block between the camshaft and pushrods. The more modern overhead camshaft (OHC) design (still literally overhead valve) avoids the use of pushrods by putting the camshaft in the cylinder head.In 1949, Oldsmobile introduced the Rocket V8. It was the first high-compression I-head design, and is the archetype for most modern pushrod engines. General Motors is the world's largest pushrod engine producer,[citation needed] producing both V6 and V8 pushrod engines.Few pushrod type engines remain in production outside of the United States market. This is in part a result of some countries passing laws to tax engines based on displacement, because displacement is somewhat related to the emissions and fuel efficiency of an automobile. This has given OHC engines a regulatory advantage in those countries, which resulted in few manufacturers wanting to design both OHV and OHC engines.However, in 2002, Chrysler introduced a new pushrod engine: a 5.7 litre Hemi engine. The new Chrysler Hemi engine presents advanced features such as variable displacement technology and has been a popular option with buyers. The Hemi was on the Ward's 10 Best Engines list for 2003 through 2007. Chrysler also produced the world's first production variable valve OHV engine with independent intake and exhaust phasing. The system is called CamInCam, and was first used in the 600 horsepower (447 kW) SRT-10 engine for the 2008 Dodge Viper.".
- Overhead_valve thumbnail Pushrod2.PNG?width=300.
- Overhead_valve wikiPageExternalLink 2007_LS7.pdf.
- Overhead_valve wikiPageExternalLink the_pushrod_engine_finally_gets_its_due-column.
- Overhead_valve wikiPageExternalLink dohc.html.
- Overhead_valve wikiPageID "1081905".
- Overhead_valve wikiPageRevisionID "594734344".
- Overhead_valve hasPhotoCollection Overhead_valve.
- Overhead_valve subject Category:Cam-in-block_valvetrain_configurations.
- Overhead_valve subject Category:Engine_valvetrain_configurations.
- Overhead_valve subject Category:Motorcycle_engines.
- Overhead_valve subject Category:Scottish_inventions.
- Overhead_valve type Ability105616246.
- Overhead_valve type Abstraction100002137.
- Overhead_valve type Arrangement105726596.
- Overhead_valve type Cam-in-blockValvetrainConfigurations.
- Overhead_valve type Cognition100023271.
- Overhead_valve type Configuration105731779.
- Overhead_valve type Creativity105624700.
- Overhead_valve type Design105728678.
- Overhead_valve type EngineValvetrainConfigurations.
- Overhead_valve type Invention105633385.
- Overhead_valve type PsychologicalFeature100023100.
- Overhead_valve type ScottishInventions.
- Overhead_valve type Structure105726345.
- Overhead_valve type Agent.
- Overhead_valve type Person.
- Overhead_valve type Person.
- Overhead_valve type Q215627.
- Overhead_valve type Q5.
- Overhead_valve type Agent.
- Overhead_valve type NaturalPerson.
- Overhead_valve type Thing.
- Overhead_valve type Person.
- Overhead_valve comment "An overhead valve (OHV) engine, also informally called pushrod engine or I-head engine, is a type of piston engine that places the camshaft within the cylinder block (usually beside and slightly above the crankshaft in a straight engine or directly above the crankshaft in the V of a V engine), and uses pushrods or rods to actuate rocker arms above the cylinder head to actuate the valves. Lifters or tappets are located in the engine block between the camshaft and pushrods.".
- Overhead_valve label "Kopklepmotor".
- Overhead_valve label "Moteur à soupapes en tête".
- Overhead_valve label "Motor OHV".
- Overhead_valve label "OHV".
- Overhead_valve label "OHV".
- Overhead_valve label "OHV".
- Overhead_valve label "OHV-Ventilsteuerung".
- Overhead_valve label "Overhead valve".
- Overhead_valve label "Valvole in testa".
- Overhead_valve sameAs Over_Head_Valve.
- Overhead_valve sameAs OHV-Ventilsteuerung.
- Overhead_valve sameAs Motor_OHV.
- Overhead_valve sameAs Moteur_à_soupapes_en_tête.
- Overhead_valve sameAs Valvole_in_testa.
- Overhead_valve sameAs OHV.
- Overhead_valve sameAs Kopklepmotor.
- Overhead_valve sameAs OHV.
- Overhead_valve sameAs OHV.
- Overhead_valve sameAs m.044dkd.
- Overhead_valve sameAs Q267714.
- Overhead_valve sameAs Q267714.
- Overhead_valve sameAs Overhead_valve.
- Overhead_valve wasDerivedFrom Overhead_valve?oldid=594734344.
- Overhead_valve depiction Pushrod2.PNG.
- Overhead_valve isPrimaryTopicOf Overhead_valve.
