High-pressure cleaner with air-cooled motor

Details High-pressure cleaner with air-cooled motor High-pressure cleaner with air-cooled motor

1993-12-20

1994-08-16

Bertsch, Richard A.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

417368, 417243, F04B 1700, F04B 3500

Patent

active

053381629

ABSTRACT:
A high-pressure cleaner includes a pump for pumping cleaning liquid, the drive mechanism of which pump is driven by an air-cooled motor. The cleaner also includes an air cooler adapted to be cooled by the cleaning liquid on its way to the pump and an air-circulating arrangement for circulating air between the motor and the air cooler in an enclosure containing the motor and the air cooler. The part of the air cooler through which the cleaning liquid flows is in intimate thermal contact with or integral with a housing containing the drive mechanism of the pump. With this arrangement, the cooling capacity of the cleaning liquid flowing towards the pump is also used for cooling the mechanism used for moving the pump's pistons, e.g., a swash-plate mechanism or the like.

REFERENCES:
patent: 2787720 (1957-04-01), Ethier et al.
patent: 4052765 (1977-10-01), Guhne et al.
patent: 4125345 (1978-11-01), Yoshinaga et al.
patent: 4480967 (1984-11-01), Schulze

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