Patent ID: 6354184
Filing Date: 2002-03-12
Classification: F15B

Abstract:
A valve assembly for a hydraulic valve actuator used in a skid steer loader, the valve assembly comprising:a valve that includes a valve housing having a bore, a fluid inlet and a fluid outlet; a spool slidably received within the bore, the spool having an outer end; a linear actuator that includes a hollow cylindrical sleeve, a plunger slidably arranged within the hollow cylindrical sleeve and connectable to the outer end of the spool, and a motor operably coupled to the plunger; a collar disposed on the hollow cylindrical sleeve; a retainer seal having an actuator end that is spaced apart from a valve end, and also having a groove extending through the retainer seal from the actuator end to the valve end, such that the retainer seal forms an interface between the linear actuator and the valve that is sufficient to space the linear actuator from the valve while inhibiting dirt penetration into an interior thereof; and a bolt path defined by the collar, the retainer seal, and the valve, the bolt path being configured to receive a bolt that secures the linear actuator, the retainer seal and the valve firmly together.