| 摘要 |
A gas-injection valve for injecting gaseous fuel into the combustion chamber of an internal combustion engine, comprising a valve housing and, disposed therein, a longitudinally displaceable piston having connected thereto a poppet valve for controlling an injection port, which poppet valve opens in the direction of gas flow, said piston separating a gas space from an operating space adapted to be pressurized by having hydraulic control fluid fed thereto by a pressure pump, and the gas pressure within the gas space alone being sufficient to move the poppet valve to and to hold it in its closed position when the operating space is depressurized.
|
