Patent ID: 9568052
Date: 2017-02-14
CPC Classifications: F16D,Y10T

Claim:
1. A fluid system for controlling flow rate to a clutch assembly in a transmission, the system comprising: a fluid source; a fluid circuit for a clutch assembly in the transmission, the fluid circuit adapted for at least one of cooling and lubricating the clutch assembly; and a spool valve for regulating a rate of fluid flow from the fluid source to the fluid circuit of the clutch assembly, the spool valve having a first fluid outlet and a second fluid outlet in fluid communication with the fluid circuit, the spool valve having a first configuration with zero flow to the fluid circuit, a second configuration providing a first flow to the fluid circuit through the first fluid outlet, and a third configuration providing a second flow to the fluid circuit through the first and second outlets, wherein the spool valve is adapted to modulate the first flow between zero flow and a first flow threshold, wherein the spool valve is adapted to modulate the second flow between the first flow threshold and a second flow threshold, the second fluid outlet having a greater cross sectional area than the first fluid outlet, wherein the second flow threshold is greater than the first flow threshold.