Patent ID: 9651149
Date: 2017-05-16
CPC Classifications: B60K,B60R,B60Y,E02F,F15B,F16H,F16K,Y10T

Claim:
1. A 3-way open center flushing valve for use in a hydraulic system including a hydraulic circuit and a fluid flushing system, the 3-way open center flushing valve comprising: a spool in the interior of the 3-way flushing valve, the spool being movable between a plurality of spool positions; a first work port hydraulically coupling the 3-way flushing valve to a first side of the hydraulic circuit; a second work port hydraulically coupling the 3-way flushing valve to a second side of the hydraulic circuit; an outlet port hydraulically coupling the 3-way flushing valve to the fluid flushing system; and wherein when the spool is in a first spool position of the plurality of spool positions, the spool allows flow between the second work port and the outlet port and blocks flow to and from the first work port; when the spool is in a second spool position of the plurality of spool positions, the spool allows flow between the first work port and the outlet port and blocks flow to and from the second work port; when the spool is in a third spool position of the plurality of spool positions, the spool allows flow between the first work port and the outlet port and also allows flow between the second work port and the outlet port; and wherein in all spool positions the spool allows flow between at least one of the first and second work ports and the outlet port.