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US 4,074,590 AGranted
Arrangement for cooling a lubricant-filled, finned gear case by means of a built-in fan
OwnerHelmut Jorginventor
Life of this patent
Estimating the term…
Abstract
A fan-cooled gear case has a fan located in a recess and a system of cool channels extending over all faces of the gear case, some of the channels being connected to the inlet side of the fan, while others are connected to the outlet side of the fan. Where necessary, the channels are covered over and have their inlets and outlets situated on the opposite side of the casing to the fan. The fan is driven by a shaft of the gearing.
Claims6
A fan-cooled, lubricant filled, gear case unit, comprising:
- a stationary gear case of substantially rectangular shape having a top and bottom, opposed ends and opposed sides, said case containing gearing including a shaft rotatably extending out through one end wall of said gear case;
- a single fan wheel connected to said shaft, said one end wall of said gear case including a recess through which said shaft extends, said fan wheel being contained within said recess for rotation with respect thereto, the outer rim of said recess and the outer face of said one end wall being coplanar;
- the top, bottom and side walls of said gear case all being provided with rib-like projections defining air channels between said projections, and means covering the outside of said projections on said top, bottom and ends of said case, a first group of said air channels communicating with the suction side of said fan wheel and the remaining group of said air channels communicating with the pressure side of said fan wheel.
Dependencies are inferred from the claim text.