Lawn mower having passages for engine cooling air

Details Lawn mower having passages for engine cooling air Lawn mower having passages for engine cooling air

1991-04-22

1993-04-06

Mitchell, David M.

Motor vehicles

Power

With means to guide and/or control air for power plant cooling

180 684, 56 6, B60K 1104

Patent

active

051995212

ABSTRACT:
A lawn mower having a driver's section and a grass cutting unit forwardly of a vehicle body; an engine mounted between front and rear wheels; and a pair of main frames extending longitudinally of the vehicle body, each of the main frames including a front frame member, and a rear frame member connected to the front frame member and disposed at a lower level than the front frame member. The engine is mounted below the main frames between the front and rear wheels, and has a radiator disposed rearwardly of the engine and having an upper portion projecting upwardly of the rear frame members. The engine is surrounded by a first cover assembly including side covers depending respectively from the main frames, lower covers connecting the respective side covers to lower positions of the engine, and a front cover for closing an area forwardly of the engine. The first cover assembly defines first ambient air intake openings. A second cover is disposed rearwardly of the driver's section for covering the upper portion of the radiator. The second cover defines a second ambient air intake opening in a forward portion thereof. Cooling air flows produced by a fan disposed adjacent the radiator are drawn through the first and second ambient air intake openings, at least a large part of the cooling air flows being exhausted rearwardly through the radiator.

REFERENCES:
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patent: 4304314 (1981-12-01), Sakaguchi et al.
patent: 4573544 (1986-03-01), Hoch et al.
patent: 4738327 (1988-04-01), Takei
patent: 4750319 (1988-06-01), Aldred
patent: 4771844 (1988-09-01), Bassett
patent: 4866917 (1989-09-01), Phillips et al.
patent: 4891940 (1990-01-01), Tamba et al.
patent: 5042604 (1991-08-01), Tone et al.

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