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Wiktionary英語版
出典：Wiktionary
overhead valve
出典:『Wiktionary』 (2025/06/16 20:49 UTC 版)
名詞
overhead valve (plural overhead valves)
- (automotive) A type of valve in an internal combustion engine, and thus also (metonymic) the type of valvetrain design, the type of engine that uses it, or an instance of such an engine; this design has the inlet and exhaust valves in the cylinder head (and therefore above the piston). The camshaft can be beside the pistons (with pushrods and rockers operating the valves) or above the valves, with the latter usually referred to as overhead cam.
- Synonym: OHV (initialism)
- Coordinate terms: overhead cam, OHC; side valve, flathead, L-head
- This engine has overhead valves.
- This engine is an overhead valve model. This engine is an overhead valve.
派生語
ウィキペディア英語版
出典：Wikipedia
Overhead valve
出典:『Wikipedia』 (2011/06/20 09:16 UTC 版)
英語による解説
ウィキペディア英語版からの引用
- 引用
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.
- Copyright (C) 1994- Nichigai Associates, Inc., All rights reserved.
- All Rights Reserved, Copyright © Japan Science and Technology Agency
- Copyright © 2026 CJKI. All Rights Reserved
- Wiktionary
- Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL).
Weblio英和・和英辞典に掲載されている「Wiktionary英語版」の記事は、Wiktionaryのoverhead valve (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
- Wikipedia
- Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL).
Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのOverhead valve (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
