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US 7,028,810 B2Granted
Method for cooling an axle
AssigneeCNH America LLC
InventorsEdward L. Coyle, Donnell L. Dunn
Life of this patent
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AssigneeCNH America LLC
InventorsEdward L. Coyle, Donnell L. Dunn
Estimating the term…
A work vehicle includes a frame and an axle assembly coupled to the frame. The axle assembly includes a first axle shaft and a first axle housing, with the first axle shaft disposed substantially within the first axle housing; a first wheel coupled to the first axle assembly; an axle lubricating fluid disposed within the first axle housing; and a first axle cooling device disposed within the first axle housing, in contact with at least a portion of the lubricating fluid, and including a first coil. Also disclosed is a method of cooling an axle assembly of a work vehicle. The method includes steps of removing heat from the lubricating fluid by placing the lubricating fluid in contact with the outer surface of a coil, and removing the heat from the inner surface of the coil by circulating the cooling fluid through the passage.
A method of cooling an axle assembly of a work vehicle, wherein the axle assembly includes an axle shaft, an axle housing configured to substantially surround the axle shaft, a cooling coil housed within the axle housing and having a passage therethrough outer and inner surfaces, the axle assembly further including a second cooling coil, wherein the cooling coil is disposed in a left axle housing and the second cooling coil is disposed in a right axle housing, a lubricating fluid disposed within the axle housing, and a cooling fluid disposed within the passage, and further wherein the lubricating fluid is of a higher temperature than is the outer surface of the coil and the outer surface of the coil is of a higher temperature than is the cooling fluid, the method comprising steps of:
The method of 1, wherein the axle assembly includes a second cooling coil, and wherein the cooling coil is disposed in a left axle housing and the second cooling coil is disposed in a right axle housing, and wherein the method further comprises the step of:
A method of cooling an axle assembly of a work vehicle, wherein the axle assembly includes an axle shaft, an axle housing configured to substantially surround the axle shaft, a cooling coil housed within the axle housing and having a passage therethrough outer and inner surfaces, the axle assembly further including a second cooling coil, wherein the cooling coil is disposed in a left axle housing and the second cooling coil is disposed in a right axle housing, a lubricating fluid disposed within the axle housing, and a cooling fluid disposed within the passage, and further wherein the lubricating fluid is of a higher temperature than is the outer surface of the coil and the outer surface of the coil is of a higher temperature than is the cooling fluid, the method comprising steps of:
The method of 3, wherein the axle assembly includes a second cooling coil, and wherein the cooling coil is disposed in a left axle housing and the second cooling coil is disposed in a right axle housing, and wherein the method further comprises the step of:
A method of cooling an axle assembly of a work vehicle, wherein the axle assembly includes an axle shaft, an axle housing configured to substantially surround the axle shaft, a cooling coil housed within the axle housing and having a passage therethrough outer and inner surfaces, the axle assembly further including a second cooling coil, wherein the cooling coil is disposed in a left axle housing and the second cooling coil is disposed in a right axle housing, a lubricating fluid disposed within the axle housing, and a cooling fluid disposed within the passage, and further wherein the lubricating fluid is of a higher temperature than is the outer surface of the coil and the outer surface of the coil is of a higher temperature than is the cooling fluid, the method comprising steps of:
The method of 5, wherein the axle assembly includes a second cooling coil, and wherein the cooling coil is disposed in a left axle housing and the second cooling coil is disposed in a right axle housing, and wherein the method further comprises the steps of:
Dependencies are inferred from the claim text.