释义 |
overhead-valve engine
overhead-valve engine n (Automotive Engineering) a type of internal-combustion engine in which the inlet and exhaust valves are in the cylinder head above the pistons. US name: valve-in-head engine Compare side-valve engine overhead-valve engine
overhead-valve engine[′ō·vər‚hed ¦valv ′en·jən] (mechanical engineering) A four-stroke-cycle internal combustion engine having its valves located in the cylinder head, operated by pushrods that actuate rocker arms. Abbreviated OHV engine. Also known as valve-in-head engine. ThesaurusSeevalve-in-head engine |