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US 7,001,146 B1Granted
Electric fan cooling of hydraulic pump
AssigneeHydro-Laser Limited Partnership
InventorMichael Todd
Life of this patent
Estimating the term…
Abstract
An assembly and means for cooling a hydraulic pump comprising an electric fan mounted on a housing of the hydraulic pump. An upper shroud helps direct cooler air to the fan and helps prevent inadvertent contact with the fan blades. An optional controller can be attached that senses the temperature of the hydraulic pump and adjusts the speed of the fan accordingly.
Claims14
A hydraulic pump assembly comprising:
- a hydraulic pump mounted in a pump housing;
- an electric fan mounted on the pump housing and secured thereto by a bracket.
A hydraulic pump assembly comprising:
- a hydraulic pump mounted in a pump housing;
- an electric fan mounted on the pump housing and secured thereto by a bracket and fasteners threaded into the pump housing;
- an upper shroud that envelops the fan and directs air from a cooler region to the electric fan;
- a lower shroud that directs air along the hydraulic pump;
- and
- a controller that senses the temperature of the hydraulic pump and actuates the fan such that the speed of the fan increases as the temperature of the hydraulic pump increases.
3 more elements
A hydraulic pump assembly, comprising:
- a pump housing having a first end, a second end and at least one side positioned between the first end and the second end;
- a hydraulic pump mounted in the pump housing;
- an input shaft drivingly engaged to the hydraulic pump and extending from the pump housing at the pump housing first end;
- and
- an electric fan attached to the pump housing, wherein the electric fan is rotatable with respect to the input shaft.
2 more elements
Dependencies are inferred from the claim text.