公开(公告)号：US20130255638A1

公开(公告)日：2013-10-03

申请号：US13850541

申请日：2013-03-26

Applicant: DENSO CORPORATION

Inventor： Akira TAKAGI ,  Haruhiko UNO ,  Makoto KONDO

IPC: F02M69/00

CPC classification number: F02M69/00 ,  F02D19/022 ,  F02M21/0233 ,  F02M21/0239 ,  Y02T10/32

Abstract: A regulator is provided with a first pressure reducing valve, a second pressure reducing valve, and a load adjusting part. A gas fuel pressure in a fuel tank is reduced to 1.4 MPa from 20 MPa by the first pressure reducing valve, and then reduced to 0.2 to 0.65 MPa by the second pressure reducing valve. In the second pressure reducing valve, the pressure of the gas fuel is reduced to 0.2 to 0.65 MPa from 1.4 MPa, so that the resistive force of a second O-ring for sealing a first middle-pressure chamber and a second pressure chamber can be made smaller. A sliding resistance between a needle and the second O-ring is reduced. An electromagnetic attracting force generated by the load adjusting part can be made smaller. Electricity consumed by the load adjusting part can be reduced and the regulator can be made smaller.

Abstract translation: 调节器设置有第一减压阀，第二减压阀和负载调节部。 燃料箱中的气体燃料压力通过第一减压阀从20MPa降低到1.4MPa，然后通过第二减压阀降低到0.2MPa至0.65MPa。 在第二减压阀中，气体燃料的压力从1.4MPa降低到0.2〜0.65MPa，因此用于密封第一中压室和第二压力室的第二O形环的阻力可以是 做得更小。 针和第二O形环之间的滑动阻力减小。 可以使由负载调整部产生的电磁吸引力变小。 可以减轻由负载调整部件消耗的电力，并且可以使调节器更小。