relieve valve

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• relieve — To remove, by grinding, the small lip of metal between the valve seat area and the cylinder and removing any other metal deemed necessary to improve the flow of fuel mixture into the cylinders. Porting is generally done at the same time …   Dictionary of automotive terms

• Pressure relief valve — A pressure relief valve is a safety device that relieve in case of overpressure in vessel or piping. The generic term is or pressure relief Valve (PRV) or pressure safety valve (PSV).Main types of pressure relief valves include: *Relief valve… …   Wikipedia

• Blowoff valve — A blowoff valve (BOV) or dump valve is a pressure release system present in most turbocharged engines. Its purpose is to prevent compressor surge, and reduce wear on the turbocharger and engine. Blowoff valves relieve the damaging effects of… …   Wikipedia

• USS Valve (ARS-28) — was an Diver class rescue and salvage ship commissioned by the U.S. Navy during World War II. Her task was to come to the aid of stricken vessels. Valve was laid down on 17 November 1942 at Bellingham, Washington, by the Bellingham Marine Railway …   Wikipedia

• Safety valve theory — The safety valve theory was a theory about how to deal with unemployment which gave rise to the Homestead Act of 1862 in the United States. Given the concentration of immigrants (and population) on the Eastern coast, it was hypothesized that… …   Wikipedia

• safety valve — ˈsafety valve noun [countable] a small part on a machine that opens to let out steam or pressure when it becomes too great: • the safety valve device on the boiler * * * safety valve UK US noun [C] ► PRODUCTION a part of a machine that opens to… …   Financial and business terms

• bleed valve — A valve designed to relieve the back pressure in a compressor, which helps to reduce the angle of attack of the rotor blades and prevent compressor stall and compressor surge. A bleed valve permits higher mass airflow through the compressor and… …   Aviation dictionary

• pressure relief valve — A one way valve designed to open at a specific pressure to prevent pressures in the system from exceeding certain limits. In an engine s lubrication system, a pressure relief valve opens to relieve excessive pressure that the oil pump might… …   Dictionary of automotive terms

• Pilot-operated relief valve — A Pilot Operated Relief Valve is used to relieve large flows with small pressure differential. [cite web|title=Pressure control valves part 1|url=http://www.hydraulicspneumatics.com/200/FPE/Valves/Article/True/6411/Valves 070111… …   Wikipedia

• Relief valve — Relief Re*lief (r? l?f ), n. [OE. relef, F. relief, properly, a lifting up, a standing out. See {Relieve}, and cf. {Basrelief}, {Rilievi}.] 1. The act of relieving, or the state of being relieved; the removal, or partial removal, of any evil, or… …   The Collaborative International Dictionary of English

• blow-off valve — A valve designed to relieve the back pressure in a compressor, which helps to reduce the angle of attack of the rotor blades and thus helps prevent compressor surge. Also known as a bleed valve or a pop off valve …   Aviation dictionary