公开(公告)号：EP1193387A1

公开(公告)日：2002-04-03

申请号：EP00308464.7

申请日：2000-09-27

Applicant: IMPCO Technologies, Inc.

Inventor： Press, Roman

IPC: F02M21/02

CPC classification number: F02M21/0272 ,  F02M21/0254 ,  F02M51/0639 ,  Y02T10/32

Abstract: A gaseous fuel injector for an internal combustion engine or a propulsion system using fuel cells has an electromagnetic solenoid with a flat rectangular armature (13) which seats agains a seat member (15) to form a valve. The valve is kept in a closed position by the differential between the fuel pressure on one side and the atmospheric pressure or the ambient pressure in the discharge chamber on the other side with additional closing force being provided by a spring (23) which abuts against the armature. With each pulsating actuation of the coil (12) of the solenoid, the armature is driven away from its seat to open the valve formed thereby providing an injection of gas from the injector. The injector has a discharge nozzle which is integrally formed therewith. A centrally located aperture (13a) is formed in the armature which along with the side space (10a,10b) afforded by the rectangular shape of the armature provides dual apertures for the flow of gas through the injector.

Abstract translation: 用于内燃机或使用燃料电池的推进系统的气体燃料喷射器具有电磁螺线管，该电磁螺线管具有平放的矩形电枢（13），所述电枢螺线管再次座位座椅构件（15）以形成阀。 通过一侧的燃料压力与另一侧的排出室中的大气压力或者排气室的环境压力之间的差值将阀门保持在关闭位置，附加的关闭力由与弹簧（23）抵接的弹簧 衔铁。 通过螺线管的线圈（12）的每个脉动致动，衔铁被驱动离开其座，以打开形成的阀，从而提供来自喷射器的气体喷射。 喷射器具有与其一体形成的排出喷嘴。 在电枢中形成一个居中定位的孔（13a），与电枢矩形形状提供的侧面空间（10a，10b）一起提供用于通过喷射器的气体流动的双孔。