Silently operating fluid pump unit

Details Silently operating fluid pump unit Silently operating fluid pump unit

1979-08-01

1981-11-24

Croyle, Carlton R.

Pumps

Combined

62507, F04B 3900

Patent

active

043021603

ABSTRACT:
A fluid pump unit having a pump, a driving motor which may be air-cooled and various system components which require a cooling air stream includes a fan which is located between the motor and the pump approximately at the midpoint of the cooling air flow route. The air flow route is arranged to be as long as possible and is provided with sharp angular bends and sound-deadening barriers to limit noise transmission to the exterior of the housing. Air-cooled system elements are located between the fan and housing exterior to act as noise deadeners and further reduce noise transmission.

REFERENCES:
patent: 2115288 (1938-04-01), Smith
patent: 2892324 (1959-06-01), Quick
patent: 3478958 (1969-11-01), Hinck et al.
patent: 3500657 (1970-03-01), Johnson
patent: 3602616 (1971-08-01), Jung
patent: 3856439 (1974-12-01), Moehrbach
patent: 3989415 (1976-11-01), Van-Hee et al.
patent: 4022550 (1977-05-01), Brink et al.

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