Circulating pump

Details Circulating pump Circulating pump

1988-09-12

1989-11-07

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415175, 417371, F04D 2906

Patent

active

048788040

ABSTRACT:
A bearing cap (16) is sealingly inserted between a front bearing bush (3) and a fluid-tight sleeve (17). Between a front portion (10) of a rotor shaft (5) and the front bearing bush, two overlying lubricating grooves (11, 12) are disposed. On a rear portion (13) of the shaft, a baffle plate (20) having vanes is mounted, an annular gap (21) existing between the shaft and the inside diameter of the vanes. Between the rear portion of the shaft and a rear bearing bush (4), lubricating grooves (14, 15) are formed continuously. The rotor chamber is quickly vented, no contamination thereof taking place. Lubrication and heat evacuation from the rotor chamber are ensured.

REFERENCES:
patent: 2844302 (1958-07-01), Weibel, Jr.
patent: 2913988 (1959-11-01), White
patent: 3067690 (1962-12-01), Kramer et al.
patent: 3163116 (1964-12-01), McCourty et al.
patent: 3169696 (1965-02-01), Warner
patent: 3667870 (1972-06-01), Yoshida et al.

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