Electrically driven compressor with a peripheral housing weld

Details Electrically driven compressor with a peripheral housing weld Electrically driven compressor with a peripheral housing weld

1989-02-14

1991-07-30

Smith, Leonard E.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

417902, 228184, 2988802, F04B 3912, F01C 104

Patent

active

RE0336521

ABSTRACT:
An electrically driven compressor has a closed vessel including upper and lower vessels, a compression mechanism disposed at the upper portion of the lower vessel to communicate, on its suction side, with the inside of the lower vessel and an electric motor disposesd under the compression mechanism inside the lower vessel to electrically drive the compression mechanism. The compression mechanism includes a stationary impeller component having a stationary impeller, a rotary impeller component having a rotary impeller for engaging with the stationary impeller to define a plurality of spaces to be compressed between them, a crank shaft rotatably driving the rotary impeller component, a bearing component for supporting the crank shaft, a self-rotation restricting component for restricting the self-rotation of the rotary impeller component but allowing only its forced rotation, a thrust bearing for supporting the rotary impeller component axially biased to it, and a partition frame component interposed between the stationary impeller and bearing components. The partition frame component is interposed between the upper and lower vessels at their respective open ends so that both vessels may be completely sealed through the partition frame component by welding its entire outer periphery.

REFERENCES:
patent: 2297554 (1940-02-01), Hardy et al.
patent: 4611830 (1986-09-01), von Ahrens
patent: 4655696 (1987-04-01), Utter
patent: 4655697 (1987-04-01), Nakamura et al.

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