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单词 tappet
释义

Definition of tappet in English:

tappet

noun ˈtapɪtˈtæpət
  • A moving part in a machine which transmits motion in a straight line between a cam and another part.

    Example sentencesExamples
    • Very small roller cam followers are installed in the cylinder head to operate the valves instead of the conventional bucket-type tappets, and here friction is cut by about 70 per cent.
    • The 16-valve has twin, chain-driven, overhead camshafts and hydraulic tappets, while the 8-valve format uses a single camshaft.
    • The real breakthrough in lifter design for street and moderate competition applications was the marriage of roller tappets with hydraulic lifters.
    • Contact between the cams and the tappets in the valve train span the mixed and boundary regions.
    • The barrier valve furthermore has a tappet, which engages the support body and is movable relative to the armature and carries a closing body of a seat valve.

Origin

Mid 18th century: apparently an irregular diminutive of tap2.

Definition of tappet in US English:

tappet

nounˈtapətˈtæpət
  • A lever or projecting part on a machine that intermittently makes contact with a cam or other part so as to give or receive motion.

    挺杆,推杆

    Example sentencesExamples
    • Contact between the cams and the tappets in the valve train span the mixed and boundary regions.
    • Very small roller cam followers are installed in the cylinder head to operate the valves instead of the conventional bucket-type tappets, and here friction is cut by about 70 per cent.
    • The barrier valve furthermore has a tappet, which engages the support body and is movable relative to the armature and carries a closing body of a seat valve.
    • The 16-valve has twin, chain-driven, overhead camshafts and hydraulic tappets, while the 8-valve format uses a single camshaft.
    • The real breakthrough in lifter design for street and moderate competition applications was the marriage of roller tappets with hydraulic lifters.

Origin

Mid 18th century: apparently an irregular diminutive of tap.

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更新时间:2025/1/14 14:36:04