Pressure regulator valve
AssigneeSuperior Transmission Parts, Inc.
InventorDean Mason
Life of this patent
Estimating the term…
Abstract
The present invention solves bore wear due to inefficient design of OEM pressure regulator valve through an improved pressure regulator valve with lands having narrower diameters and longer lengths, the lands additionally having a grooved design, and a second land having a beveled edge to stabilize fluid regulation. Narrower lands allow for better ATF lubrication in a bore. Longer lands allow for the valve to be dropped into a bore to interact with non-damaged lengths of the bore without further machining. The beveled edge regulates pressure, further reducing bore wear.
Claims10
A method of reducing bore wear in a 5R110W automatic transmission, comprising:
- removing an OEM (original equipment manufacturer) pressure regulator valve from a bore of a valve body of the 5R110W transmission;
- inserting a replacement pressure regulator valve in the bore without enlarging the bore, the replacement pressure regulator valve comprising
- a cylindrical valve stem having an opposing first end and second end;
- a first land positioned along the valve stem near the first end;
- a second land positioned along the valve stem closer to the second end relative to the first land and spaced apart from the first land;
- a third land positioned along the valve stem closer to the second end relative to the second land and spaced apart from the second land;
- a fourth land positioned along the valve stem closer to the second end relative to the third land and spaced apart from the third land;
- wherein each of the first land, the second land, the third land, and the fourth land are grooved;
- wherein each of the first land, the second land, the third land, and the fourth land have a replacement diameter less than 18.4708 mm (millimeters) and said replacement diameter is smaller than an OEM diameter of corresponding lands of the OEM pressure regulator valve for the 5R110W transmission;
- and
- wherein an end of the second land closest to the third land is beveled;
- reducing cycle rate and distance of the replacement pressure regulator valve compared to the OEM pressure regulator valve;
- metering fluid exhaust at a progressive rate to quiet pressure oscillation and shorten and slow a fluid exhaust cycle;
- creating a boundary layer of fluid between the first land, the second land, the third land, and the fourth land and the bore;
- and
- reducing an overall frictional drag coefficient between the replacement pressure regulator valve and the bore, and
- wherein average fluid flow through the replacement pressure regulator valve increases to 15.1416 liters per minute.
A method of reducing bore wear in an automatic transmission, comprising:
- removing an OEM (original equipment manufacturer) pressure regulator valve from a bore of a valve body of the automatic transmission;
- inserting a replacement pressure regulator valve in the bore without enlarging the bore, the replacement pressure regulator valve comprising
- a cylindrical valve stem having an opposing first end and second end;
- a first land positioned along the valve stem near the first end;
- a second land positioned along the valve stem closer to the second end relative to the first land and spaced apart from the first land;
- a third land positioned along the valve stem closer to the second end relative to the second land and spaced apart from the second land;
- a fourth land positioned along the valve stem closer to the second end relative to the third land and spaced apart from the third land;
- wherein each of the first land, the second land, the third land, and the fourth land are grooved;
- wherein each of the first land, the second land, the third land, and the fourth land have a replacement diameter less than 18.4708 mm (millimeters) and said replacement diameter is smaller than an OEM diameter of corresponding lands of the OEM pressure regulator valve for the automatic transmission;
- and
- wherein an end of the second land closest to the third land is beveled, and
- wherein average fluid flow through the replacement pressure regulator valve increases to 15.1416 liters per minute.
Dependencies are inferred from the claim text.