Drive wheel with an integral fan for a hydraulic power unit

Details Drive wheel with an integral fan for a hydraulic power unit Drive wheel with an integral fan for a hydraulic power unit

2007-06-12

2010-12-07

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Having distinct cooling or lubricating structure

Reexamination Certificate

active

07845170

ABSTRACT:
A drive wheel with an integral fan mountable as a unit to a shaft of a hydraulic power unit for rotation therewith. Fan blades extending from the drive wheel circulate air when the drive wheel is rotated. One or more passageways extending through the drive wheel can be provided to allow air to flow axially therethrough to be circulated around the hydraulic unit. A fan assembly for a hydraulic power unit is also provided including a fan element and a rotatable shroud attached thereto.

REFERENCES:
patent: 1998087 (1935-04-01), Koch, Jr.
patent: 5093591 (1992-03-01), Kitamura et al.
patent: 5259726 (1993-11-01), Bacria
patent: 5304040 (1994-04-01), Wang
patent: 6973783 (2005-12-01), Hauser et al.

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