Scroll type compressor, having welded end shells and shaft subfr

Details Scroll type compressor, having welded end shells and shaft subfr Scroll type compressor, having welded end shells and shaft subfr

1993-05-05

1994-07-12

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

29888022, 417902, F04C 1804, B23K 9007

Patent

active

053283406

ABSTRACT:
A scroll type compressor which includes a fixed scroll and an orbiting scroll which have their base plates provided with scroll wraps thereon, and which have the scroll wraps combined to form a compression chamber therebetween. A center shell is provided which has an upper inner peripheral surface formed with a stepped portion engageable with a stepped portion in the frame, which has the frame shrinkage fitted thereto. Shells are connected to both ends of the center shell to form a hermetic housing; and the hermetic housing is divided into a high pressure space and a low pressure space at a boundary which is formed by the shrinkage fitted portions of the center shell and the frame. The center shell has a lower inner peripheral surface formed with a stepped portion, and the stepped portion in the upper inner peripheral surface and the stepped portion in the lower inner peripheral surface are formed to keep predetermined parallelism and coaxiality, and the subframe is fixed to the stepped portion in the lower inner peripheral surface. In a preferred embodiment, a welding starting point for fixing the end shells to the center shell is in the same position when viewed in the axial direction on the circumference of the center shell as a welding point for fixing the subframe to the center shell.

REFERENCES:
patent: 4998864 (1991-03-01), Muir
patent: 5042150 (1991-08-01), Fraser, Jr.

Affiliated with

Also associated with

Rating

Scroll type compressor, having welded end shells and shaft subfr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scroll type compressor, having welded end shells and shaft subfr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scroll type compressor, having welded end shells and shaft subfr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-392505