Patent ID: 7634909
Filing Date: 2009-12-22
Classification: B62D,F15B

Abstract:
1. A travel jolt minimizing assembly for use in association with an articulated loader steering environment having a orbitrol pump, and a flow amplifier coupled to the orbitrol pump through a left orbitrol signal and a right orbitrol signal, and a steering cylinder coupled to the flow amplifier, the travel jolt minimizing assembly comprising: means for temporarily diverting the left orbitrol signal within a predetermined degrees of a full articulation in a left direction; and means for temporarily diverting the right orbitrol signal within a predetermined degrees of a full articulation in a right direction, wherein the left temporary diverting means further comprises: a shuttle valve having a diversion spool and a head end port, the diversion spool is biased toward the head end port; a switch valve coupled to each of the shuttle valve and the left orbitrol signal, the switch valve having a first position and a second position, the first position corresponding to a position wherein the left orbitrol signal is isolated from the switch valve and the second position corresponding to a position wherein the left orbitrol signal is in communication with the head end port of the shuttle valve, whereupon actuation of the switch valve from the first position to a second position diverts fluid from the left orbitrol signal into the shuttle valve, driving the diversion spool across the valve away from the head end port toward an end of travel.