To inhibit the construction of a pressure control valve from being complicated and enlarged.SOLUTION: A pressure control valve (10) includes a housing (20) which has a first flow passage (P1) and a second flow passage (P2), a first valve seat (28) which is continuous to the housing (20), a first valve element (40) which can be seated on the first valve seat (28), a second valve seat (38) which is continuous to the first valve element (40), a second valve element (60) which can be seated on the second valve seat (38), a cylindrical compression coil spring (50) which energizes the first valve element (40) to be seated on the first valve seat (28) and separates the first valve element (40) from the first valve seat (28) to the second flow passage (P2) side, and a tension coil spring (70) which energizes the second valve element (60) to be seated on the second valve seat (38) and separates the second valve element (60) from the second valve seat (38) to the first flow passage (P1) side. The tension coil spring (70) is disposed in an inner side of the compression coil spring (50).SELECTED DRAWING: Figure 1
【課題】圧力制御弁における構造の複雑化および大型化を抑制する。【解決手段】圧力制御弁(10)は、第1流路部(P1)と第2流路部(P2)とを有するハウジング(20)と、ハウジング(20)と連なる第1の弁座(28)と、第1の弁座(28)に着座可能に構成された第1の弁体(40)と、第1の弁体(40)と連なる第2の弁座(38)と、第2の弁座(38)に着座可能に構成された第2の弁体(60)と、第1の弁体(40)を付勢して第1の弁座(28)に着座させ、第1の弁体(40)を第1の弁座(28)から第2流路部(P2)側へと離す円筒状の圧縮コイルばね(50)と、第2の弁体(60)を付勢して第2の弁座(38)に着座させ、第2の弁体(60)を第2の弁座(38)から第1流路部(P1)側へと離す引張コイルばね(70)と、を備え、引張コイルばね(70)は、圧縮コイルばね(50)の内側に配置されている。【選択図】図1
PRESSURE CONTROL VALVE
圧力制御弁
2019-04-04
Patent
Electronic Resource
Japanese
IPC: | F16K VALVES , Ventile / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |