Patent ID: 9387759
Filing Date: 2016-07-12
CPC Classification: B23P,B60K,B60Y,E02F,F16K

Claim Text:
1. A main valve comprising: a body defining a supply port, a first exit port, a second exit port, an intermediate channel, a flow divider channel, a first bypass channel, a second bypass channel, a free wheeling pilot channel, and a bypass pilot channel; a free wheeling valve disposed in the body and fluidly connected to the supply port, the free wheeling valve operable between a free wheeling mode that blocks fluid flow out of the first and second exit ports by blocking fluid flow between the supply port and a bypass valve, and a drive assist mode that permits fluid flow out of the first and second exit ports by permitting fluid from the supply port to flow to the bypass valve; the bypass valve disposed in the body and fluidly connected to the free wheeling valve by the intermediate channel, the bypass valve fluidly connected to the first and second bypass channels and a flow divider valve, the bypass valve having a flow dividing mode that permits fluid communication between the free wheeling valve and the flow divider valve, and a bypass mode that permits fluid communication between the free wheeling valve and the first and second bypass channels; a flow divider valve disposed in the body and including a flow divider inlet fluidly connected to the bypass valve by the flow divider channel, a first flow divider outlet fluidly connected to the first exit port, and a second flow divider outlet fluidly connected to the second exit port, the flow divider inlet in fluid communication with the first and second flow divider outlets; a free wheeling pilot valve disposed in the body and fluidly connected to the free wheeling valve by the free wheeling pilot channel; and a flow divider bypass pilot control valve disposed in the body and fluidly connected to the bypass valve by the bypass pilot channel.