|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||914/53 ; 901/459 ; 901/461|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 6|
A line vent arrangement is provided to selectively vent pressurized fluid from an actuator in an electro-hydraulic system when an engine of a machine has been shut down. This is accomplished by providing a pressure storage arrangement in parallel with a source of pressurized pilot fluid and an electrically controlled valve that is movable to a position to connect the pressure storage arrangement to the electro-hydraulic directional control valve when the engine of the machine has been shut down.
[ What is claimed is:] [1.]1. A line vent arrangement for an electro-hydraulic system in a machine having an engine, the electro-hydraulic system having a source of pressurized fluid selectively connected to an actuator through an electro-hydraulic directional control valve, a source of pressurized pilot fluid connected to the electro-hydraulic directional control valve and operative to move the electro-hydraulic directional control valve from its neutral position to its operative position, a reservoir, and an electronic controller, the line vent arrange...