# US 4,396,360 A · Dual compressors

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- Number: US 4,396,360 A
- Document ID: US4396360A
- Status: Granted
- Kind: A
- Application number: 06/231,016
- Filed: 1981-02-03
- Granted: 1983-08-02
- Earliest claimed: 1981-02-03
- Assignees: Copeland Corporation
- Inventors: John P. Elson
- Web page: https://patentgrep.com/patent/US4396360A

## CPC

- F04B 39/127: {Mounting of a cylinder block in a casing}
- F04B 39/123: {Fluid connections}
- F04B 41/06: Combinations of two or more pumps
- Y10S 417/902: Hermetically sealed motor pump unit
- F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A hermetic refrigeration compressor system comprises a sealed shell containing two motor-compressor units of different capacities and also containing a suction gas accumulator through and from which suction gas is delivered to both units, the interior of the shell being at suction pressure; gas from an outlet of the accumulator being directed into an aligned, spaced inlet in the motor cover of the smaller unit. Both units are spring-mounted on a unitary support within the shell.

## Claims

### Claim 1

A multi-compressor assembly comprising a hermetic casing which has a bottom wall and spaced sidewall portions, a plurality of compressor means in the casing, and a supporting structure for spring-mounting the compressor means in the casing, characterized by a sheet metal bracket member including a medial portion resting on and extending across the bottom wall and having side portions extending upwardly adjacent opposite sidewall portions and thence projecting inwardly toward one another and defining shelf portions, and spring abutment means on each of said inwardly projecting shelf portions.

### Claim 2 (depends on 1)

In a multi-compressor assembly as defined in claim 1, upstanding abutment-defining portions carried by the medial portion and extending upwardly therefrom to substantially coplanar relation with respect to said previously mentioned abutment means.

### Claim 3

A multi-compressor assembly including a hermetic casing having a bottom wall and spaced sidewall portions, a plurality of compressor units in the casing, and means for mounting the compressor units in the casing characterized by a bracket member having a medial portion extending across the bottom wall, a pair of side portions integral with said medial portion and extending upwardly adjacent opposite sidewall portions of the casing and thence projecting inwardly toward one another to define shelf portions, and spring-supporting means for the compressor units, said spring-supporting means being carried partly by said medial portion and partly by said shelf portions.

### Claim 4 (depends on 3)

Means as defined in claim 3 wherein said spring-supporting means comprise a plurality of abutment portions carried by said medial portion of the bracket, and a plurality of spring means for supporting each of said compressors including at least one spring carried by said medial portion and at least one spring carried by one of said shelf portions.