- valve arm
- 阀杆
English-Chinese machine dictionary (英汉机械大词典). 2013.
valve arm
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Valve float — is an adverse condition which occurs when the poppet valves on an internal combustion engine valvetrain do not remain in contact with the camshaft lobe during the valve closure phase of the cam lobe profile. This reduces engine efficiency and… … Wikipedia
Valve shim — A valve shim is a disc of hardened metal of precisely calibrated height used to adjust the clearance (US:lash) between a cam lobe and the valve on which it operates where the cam lobe operates directly on the valve without an intermediate rocker… … Wikipedia
valve tappet — An adjusting screw to obtain the specified clearance at the end of the valve stem (tappet clearance). The screw may be in the top of the lifter, in the rocker arm, or in the case of the ball joint rocker arm, the nut on the mounting stud acts in… … Dictionary of automotive terms
valve clearance — The distance between the small end of the valve stem and the rocker arm or valve lifter. This gap is necessary to compensate for expansion due to heat. Also called valve lash … Dictionary of automotive terms
valve clearance — In a reciprocating engine, the clearance between the end of a valve head and a rocker arm when the valve is seated … Aviation dictionary
valve tip — The upper end of the valve that contacts the rocker arm … Dictionary of automotive terms
valve rocker — noun a lever pivoted at the center; used especially to push a valve down in an internal combustion engine • Syn: ↑rocker arm • Hypernyms: ↑lever … Useful english dictionary
Rocker arm — Generally referred to within the internal combustion engine of automotive, marine, motorcycle and reciprocating aviation engines, the rocker arm is a reciprocating lever that conveys radial information from the cam lobe into linear information at … Wikipedia
Desmodromic valve — In general mechanical terms, the word desmodromic is used to refer to mechanisms that have different controls for their actuation in different directions. Desmodromic poppet valve in Ducati engine. A desmodromic valve is a reciprocating engine… … Wikipedia
Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… … Wikipedia
Continuous variable valve timing — offers a unique ability to have independent control of the intake and exhaust valves in an internal combustion engine. For any engine load criteria, the timing of intake and exhaust can be independently programmed [1]. The main variations of… … Wikipedia
