Rotary vane compressor with discharge fluid to front and rear sh

Details Rotary vane compressor with discharge fluid to front and rear sh Rotary vane compressor with discharge fluid to front and rear sh

1986-08-01

1988-05-10

Vrablik, John J.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Non-working fluid directed to groove

418 79, 418 82, 418 84, 418 87, 418 94, 418100, F04C 18344, F04C 2902

Patent

active

047431830

ABSTRACT:
A first refrigerant gas passage is provided for conveying refrigerant gas under pressure to rearward ends of rotor vane slots through a rear bearing in order to supply back pressure to the rotor vane slots as well as to supply lubricant to the rear bearing. In addition to the first refrigerant gas passage, there is provided a second refrigerant gas passage for conveying refrigerant gas under pressure to forward ends of the rotor vane slots and a front bearing without conveying through the rear bearing and the rearward ends of the rotor vane slots in order to supply lubricant to the front bearing as well as to apply uniform back pressure on vanes, particularly at the forward and rearward ends thereof.

REFERENCES:
patent: 2077394 (1937-04-01), Buenger
patent: 4144002 (1979-03-01), Shibuya et al.
patent: 4484868 (1984-11-01), Shibuya et al.
Compressor Service Manual Cat. No. 525185, published by Diesel Kiki Co., Ltd., Feb. 1985.

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