Hermetic motor compressor
First Claim
1. A hermetic motor compressor comprising:
- (a) a motor-compressor unit; and
(b) a casing for containing said motor-compressor unit, said casing having a dome-like upper casing and a dome-like lower casing, each of said upper and lower casings having an engagement portion for engaging with each other, and an apex portion at the top of the dome thereof, at least one of said upper and lower casings having;
at least three corner portions in the vicinity of said engagement portion thereof;
at least three crest lines respectively extending from said corner portions toward said apex portion;
said casing having at least three crescent-shaped planes, each plane being placed between a pair of said corner portions, each of said crescent-shaped planes having a convexly curved side placed along a section of said engagement portion, and a concavely curved side; and
at least three curved surfaces connecting two of said crest lines and said concavely curved side of respective crescent-shaped planes.
1 Assignment
0 Petitions
Accused Products
Abstract
A hermetic motor compressor comprises a casing which includes a dome-like upper casing and a dome-like lower casing. Each of the upper and lower casings has an engagement portion for telescopically engaging with each other. The stiffness of the upper casing is increased by making at least three corner portions close to the engagement portion. Crescent-shaped portions, curved surfaces, an apex portion and crest lines are also provided for the upper casing. This specific structure of the upper casing may be made also for the lower casing, and when both of the upper and lower casings have such construction, the corner portions of the upper casing and the corner portions of the lower casing are arranged alternatively so that the vibrating modes of respective casings offset each other. The shape of the entire casing may be spherical or ellipsoidal.
19 Citations
15 Claims
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1. A hermetic motor compressor comprising:
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(a) a motor-compressor unit; and (b) a casing for containing said motor-compressor unit, said casing having a dome-like upper casing and a dome-like lower casing, each of said upper and lower casings having an engagement portion for engaging with each other, and an apex portion at the top of the dome thereof, at least one of said upper and lower casings having; at least three corner portions in the vicinity of said engagement portion thereof; at least three crest lines respectively extending from said corner portions toward said apex portion; said casing having at least three crescent-shaped planes, each plane being placed between a pair of said corner portions, each of said crescent-shaped planes having a convexly curved side placed along a section of said engagement portion, and a concavely curved side; and at least three curved surfaces connecting two of said crest lines and said concavely curved side of respective crescent-shaped planes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification