Check valve for engine fuel delivery systems

摘要: In a fuel delivery system that includes pump for supplying under pressure from supply to an internal combustion engine, check valve is positioned between the and engine preventing back-flow of pump. The has flow passage with central axis seat orientated away A element within axial motion against coil spring as function captured in compression guide downstream passage. stem extends axially slidably disposed bore guide. An orifice couples fluid thereby not only restrain lateral passage, but also form piston/cylinder construction cooperates dampen element. Thus, motions are stabilized, greatly reducing vibrational signature system, pulses delivered engine.