Entrained air deflector for a hydrostatic transmission
First Claim
1. A hydrostatic transmission for a working machine having a frame, an engine on the frame, and at least one wheel driven by the hydrostatic transmission, comprising:
- a housing;
a hydraulic pump, the hydraulic pump driven by an output shaft from the engine;
a hydraulic motor for driving an output shaft connected to the at least one wheel;
a first fluid line fillable with hydraulic fluid to be maintained under a first pressure;
a second fluid line fillable with hydraulic fluid to be maintained under a second pressure;
a first check valve for allowing hydraulic fluid to enter the first fluid line;
a second check valve for allowing hydraulic fluid to enter the second fluid line; and
an entrained air deflector for preventing hydraulic fluid entrained with air from entering the first check valve and the second check valve, the entrained air deflector comprising;
a floor, the floor having an outer edge, the floor being positioned beneath the first check valve and the second check valve; and
a wall extending perpendicularly upward from the outer edge of the floor, the wall radially surrounding the first check valve and the second check valve.
2 Assignments
0 Petitions
Accused Products
Abstract
A hydrostatic transmission for a working machine having a frame, an engine on the frame, and at least one wheel driven by the hydrostatic transmission is disclosed. The hydrostatic transmission includes a housing, a hydraulic pump, the hydraulic pump driven by an output shaft from the engine, a hydraulic motor for driving an output shaft connected to the at least one wheel, a first fluid line fillable with hydraulic fluid to be maintained under a first pressure, a second fluid line fillable with hydraulic fluid to be maintained under a second pressure, a first check valve for allowing hydraulic fluid to enter the first fluid line, a second check valve for allowing hydraulic fluid to enter the second fluid line, and an entrained air deflector for preventing hydraulic fluid entrained with air from entering the first check valve and the second check valve.
9 Citations
15 Claims
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1. A hydrostatic transmission for a working machine having a frame, an engine on the frame, and at least one wheel driven by the hydrostatic transmission, comprising:
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a housing; a hydraulic pump, the hydraulic pump driven by an output shaft from the engine; a hydraulic motor for driving an output shaft connected to the at least one wheel; a first fluid line fillable with hydraulic fluid to be maintained under a first pressure; a second fluid line fillable with hydraulic fluid to be maintained under a second pressure; a first check valve for allowing hydraulic fluid to enter the first fluid line; a second check valve for allowing hydraulic fluid to enter the second fluid line; and an entrained air deflector for preventing hydraulic fluid entrained with air from entering the first check valve and the second check valve, the entrained air deflector comprising; a floor, the floor having an outer edge, the floor being positioned beneath the first check valve and the second check valve; and a wall extending perpendicularly upward from the outer edge of the floor, the wall radially surrounding the first check valve and the second check valve. - View Dependent Claims (2, 3, 4)
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5. A hydrostatic transmission for a working machine having a frame, an engine on the frame, and at least one wheel driven by the hydrostatic transmission, comprising:
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a housing; a hydraulic pump, the hydraulic pump driven by an output shaft from the engine for pumping hydraulic fluid; a hydraulic motor for driving an output shaft connected to the at least one wheel; a first fluid line transporting hydraulic fluid between the hydraulic pump and the hydraulic motor under a first pressure; a second fluid line transporting hydraulic fluid between the hydraulic pump and the hydraulic motor under a second pressure; a first check valve for allowing hydraulic fluid to enter the first fluid line; and a deflector for preventing hydraulic fluid entrained with air from entering the first check valve, the deflector comprising; a floor, the floor having an outer edge, the floor being positioned beneath the first check valve; and a wall extending upwardly from the outer edge of the floor, the wall radially surrounding the first check valve. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification