Technology / Motorcycle / Overhead Valve (OHV): A type of piston engine that places the camshaft in the cylinder block and uses pushrods or rods to actuate rocker arms above the cylinder head to actuate the valves. Lifters or tappets reside in the engine block between the camshaft and pushrods. This contrasts with an overhead cam (OHC) design which places the camshafts above the cylinder head and drives the valves directly or through short rocker arms. In an OHC engine, the camshafts are normally part of the cylinder head assembly, while in an OHV engine the camshaft (rarely more than one) is part of the main engine block assembly. Also called "pushrod engine" or "I-head" engine.
Overhead Adverb Synonyms: (basic or fixed) costs, operating cost(s), expense(s), outlay, disbursement(s), running cost(s), expenditure(s), maintenance, cost(s) of doing business
Overhead Noun Synonyms: elevated, raised, upper
Overhead Verb Synonyms: (up) above, (up) in the air or sky, high up, on high, aloft, skyward
Business / Construction / Relief Valve: A device designed to open if it detects excess temperature or pressure. MORE
Entertainment / Football / Safety Valve: A receiver whose job it is to get open for a short pass in case all other receivers are covered. MORE