US 11,725,891 B2
Devices and method for regulating cooler flow through automotive transmissions
Dean Mason, Tallahassee, FL (US)
Assigned to SUPERIOR TRANSMISSION PARTS, INC., Tallahassee, FL (US)
Appl. No. 17/288,720
Filed by SUPERIOR TRANSMISSION PARTS, INC., Tallahassee, FL (US)
PCT Filed Oct. 30, 2019, PCT No. PCT/US2019/058831
§ 371(c)(1), (2) Date Apr. 26, 2021,
PCT Pub. No. WO2020/092538, PCT Pub. Date May 7, 2020.
Claims priority of provisional application 62/752,539, filed on Oct. 30, 2018.
Prior Publication US 2021/0404545 A1, Dec. 30, 2021
Int. Cl. F28F 27/02 (2006.01); F16K 15/02 (2006.01)
CPC F28F 27/02 (2013.01) [F16K 15/026 (2013.01); F28F 2250/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A thermal bypass valve, comprising:
a sleeve comprising:
a cylindrical body, an inner cylindrical cavity extending along a longitudinal length of the cylindrical body, the cylindrical body having a free end contiguous with the cylindrical cavity, wherein a second cylindrical cavity is contiguous with the cylindrical cavity opposite the free end;
a grooved blocker portion attached to the cylindrical body opposite the free end and adjacent to a grooved portion of the cylindrical cavity, the grooved portion having a plurality of openings into the second cylindrical cavity, wherein the grooved blocker portion has two grooves each extending along a circumference of the grooved blocker portion; and
a cap portion attached to the grooved blocker portion at an end opposite of the cylindrical body, the cap having a larger diameter than the grooved blocker portion, and a having a member attached at an end opposite the grooved blocker portion,
a piston having a first cylindrical portion adjacent to a second cylindrical portion, the first cylindrical portion and second cylindrical portion defining a central cylindrical cavity extending along a longitudinal length of the piston and open at opposing free ends of the piston, wherein the first cylindrical portion has a greater diameter than the second cylindrical portion;
a spring having an end with a smaller diameter than an opposing end;
a bearing ball;
two large O-rings; and
a small O-ring,
wherein the bearing ball is configured to rest partially within the second cylindrical cavity and secured by the spring along the end with a smaller diameter, and the spring is compressible by the piston along a free end of the first cylindrical portion, wherein the piston slidably engages the inner cylindrical cavity of the sleeve along the first cylindrical portion,
wherein each O-ring of the two large O-rings engages a groove of the two grooves of the grooved blocker portion,
wherein the small O-ring engages the circumference of the second cylindrical portion of the piston adjacent to the first cylindrical portion, and
wherein the thermal bypass valve is configured to insert into an external thermostat block of an automotive transmission.