Patent ID: 11913480
Assignee: DANFOSS A/S
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 6:
7. An isolation valve assembly for use in a hydraulic circuit, the isolation valve assembly comprising:
(a) first and second ports configured for fluid communication with a metering valve assembly;
(b) third and fourth ports configured for fluid communication with an actuator;
(c) a fifth port configured for fluid communication with a pump side of the hydraulic circuit;
(d) a sixth port configured for fluid communication with a reservoir side of the hydraulic circuit; and
(e) a seventh port configured for fluid communication with a pressure sensor;
(f) wherein when the isolation valve is in a first position, the first and third ports are placed in fluid communication with each other, the second and fourth ports are placed in fluid communication with each other, the fifth and seventh ports are placed in fluid communication with each other, and the sixth port is blocked;
(g) wherein when the isolation valve is in a second position, the first through fifth ports are blocked and the sixth and seventh ports are placed in fluid communication with each other.