SELF-CONTAINED CENTRIFUGAL REFRIGERANT GAS COMPRESSOR AND ELECTRIC MOTOR

• US 3,619,086 A
• Filed: 02/26/1970
• Issued: 11/09/1971
• Est. Priority Date: 02/26/1970
• Status: Expired due to Term

• Current Assignee: Snyder General Corporation
• Original Assignee: James H. Anderson, John G. Johnson
• Inventors: Johnson, John G., Anderson, James H.
• Primary Examiner(s): Walker, Robert M.
• Application Number:
  US05/014,469
• Time in Patent Office: 621 Days
• Field of Search: 417/423,424,360 415/122,201
• US Class Current: 417/360
• CPC Class Codes: F04D 17/10 for compressing or evacuating
• CPC Class Codes: F04D 25/02 Units comprising pumps and their driving means
• CPC Class Codes: F04D 25/0606 the electric motor being specially adapted for integration in the pump
• CPC Class Codes: F04D 29/624 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/663 Sound attenuation

Abstract

A self-contained electric motor-driven refrigerant gas compressor assembly is comprised of a bearing support member having a first cantilevered bearing assembly support means projecting from its back side with an electric motor armature shaft journaled therein and a second cantilevered bearing assembly support means projecting from its front side with a centrifugal gas impeller and shaft journaled therein. The armature shaft projects through the support member to its front side and suitable means for rotatably interconnecting the projecting armature shaft and the impeller shaft is provided on the front side.

Claims

1. A self contained electric motor-driven gas compressor assembly comprising, a bearing support member having a front side and a back side, first bearing assembly support means projecting from the back side of said support, an electric motor armature shaft journaled in said first bearing assembly support means with an end extending through the support to the front side of the support, second bearing assembly support means projecting from the front side of said support, a rotatable gas impeller and shaft journaled in said second bearing assembly support means, means rotatably interconnecting the extended end of said armature shaft and and said gas-impeller shaft on the front side of said support member, a gas compressor housing detachably secured to the front side of said support member, and a compressed gas-collecting scroll supported between an inside wall of said compressor housing and the impeller end of said second bearing means in a position surrounding said rotatable impeller.

2. The invention of claim 1 in which an electric motor housing is detachably secured to the back side of said support member.

3. The invention of claim 2 in which an electric motor field coil assembly is contained within said motor housing and an electric motor armature is mounted on said armature shaft extending from the back side of said support.

4. The invention of claim 1 in which said first bearing assembly support means is cantilevered out from the back side of said support member and contains the entire bearing elements for said armature shaft.

5. The invention of claim 4 in which said second bearing assembly support means is cantilevered out from the front side of said support member and contains the entire bearing elements for said impeller shaft.

6. The invention of claim 5 in which said first bearing assembly support means is cantilevered out from the back side of said support member and contains the entire bearing elements for said armature shaft.

7. The invention of claim 1 in which the bearing support member and the first and second bearing assembly support means are formed of an integral metal casting.