Rotary expansible chamber devices – Working member has planetary or planetating movement – With relatively movable partition member
Patent
1985-06-17
1986-08-12
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
With relatively movable partition member
417902, 291564R, 29434, 29DIG38, 29DIG48, 228179, 228184, 219 73, F04C 2900, B23P 1500, B23K 918, B23K 3102
Patent
active
046053620
ABSTRACT:
A rotary compressor of the type having an outer metal cylinder casing, a metal cylinder with a vane slot and a vane and the method of assembling the compressor by forming the cylinder with a circular chamber, the center of which is in alignment with the central axis of the cylinder and having a circular outer wall slightly smaller than the inside diameter of the casing. A vane slot is cut in the cylinder which slot is open at one end into the chamber. A vane is placed in the slot to divide the chamber into a high pressure side and a low pressure side. The cylinder has formed therein three curved elongated ports spaced from each other in the cylinder between the chamber and outer wall. The length of each port and thickness of the metal between the port and outer wall of the cylinder cooperate to provide adequate strength for welding and sufficiently flexible to absorb any significant distortion forces caused by welding without transmitting the distortion forces to the vane slot. The cylinder outer wall is welded to the casing adjacent the three ports. Additionally, there may be a fourth weld located from 5.degree. to 15.degree. from a diameter line of the cylinder passing through the center of the vane slot and central axis of the cylinder on the high pressure side of the cylinder chamber.
REFERENCES:
patent: 3555320 (1971-01-01), Johnson
patent: 3844685 (1974-10-01), Eickmann
patent: 3865520 (1975-02-01), Kramer et al.
patent: 4250423 (1981-02-01), Linscott, Jr.
patent: 4455129 (1984-06-01), Sakitani et al.
Derman Robert I.
Sturgeon Gerald E.
General Electric Company
Reams Radford M.
Vrablik John J.
Weidner Frederick P.
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