| 主权项 |
1. A bypass system for a transmission, the system comprising:
a transmission casing defining a first aperture and a second aperture spaced from the first aperture; a valve assembly including:
a housing defining a first port and a second port spaced from each other;wherein the housing defines an inlet in fluid communication with the first port and an outlet selectively in fluid communication with the second port;an actuation device disposed in the housing and including a member movable between a first position for routing a fluid from the second port into the inlet, through the first port and directly back into the transmission casing with the outlet being bypassed and a second position for routing the fluid from the second port into the outlet and away from the transmission casing;wherein the housing is mounted to the transmission casing such that the first port and the first aperture cooperate with each other for routing the fluid into the transmission casing directly from the valve assembly, and the second port and the second aperture cooperate with each other for routing the fluid out of the transmission casing directly into the valve assembly;wherein the housing of the valve assembly defines a cavity along a longitudinal axis, with the member moveable within the cavity, and with the second port, the inlet and the outlet in fluid communication with the cavity; andwherein the valve assembly includes a first biasing member and a second biasing member each disposed in the cavity to assist the actuation device, with the member disposed between the first and second biasing members;wherein the actuation device is further defined as a piston device and the member is further defined as a piston;wherein the valve assembly includes a valve body mounted in the cavity, with the valve body including a rim, and with the piston engaging the rim when in the first position for directing the fluid from the second port, through the cavity, into the inlet, through the first port and back into the transmission casing with the outlet being bypassed, and with the piston spaced from the rim when in the second position for directing the fluid from the second port, through the cavity, out the outlet and away from the transmission casing. |
