US3635579A - Discharge nozzle arrangement for centrifugal gas compressor - Google Patents
Discharge nozzle arrangement for centrifugal gas compressor Download PDFInfo
- Publication number
- US3635579A US3635579A US14472A US3635579DA US3635579A US 3635579 A US3635579 A US 3635579A US 14472 A US14472 A US 14472A US 3635579D A US3635579D A US 3635579DA US 3635579 A US3635579 A US 3635579A
- Authority
- US
- United States
- Prior art keywords
- scroll
- housing
- gas
- nozzle
- assembled relation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
Definitions
- ABSTRACT A centrifugal gas compressor impeller with a surrounding gascollecting scroll is enclosed within an outer casing or housing to provide good appearance and reduced noise transmission.
- a discharge nozzle is detachably secured to pass through an opening of the housing with its inner end received in the discharge outlet of the gas-collecting scroll.
- centrifugal compressor in relatively small airconditioning systems where the reciprocating compressors were previously considered more economical.
- One of the many advantages of the centrifugal compressor is its small size for a comparable capacity relative to a reciprocating compressor. Since the centrifugal impeller runs at a very high speed, an objectionable whine may be noticeable at times during operation. It is therefore desirable to provide an assembly for containing the centrifugal compressor including its compressed gas collecting scroll within an outer housing that will serve to reduce the transmission of sound from the gas-collecting scroll and enhance the overall appearance of the compressor.
- a centrifugal gas compressor impeller is mounted on a bearing assembly projecting from a bearing support wall.
- An outer housing is detachably secured to the bearing support wall in a manner to enclose the impeller with a gas-collecting scroll surrounding the impeller but in generally spaced relation to the inside walls of the housing.
- the scroll may be detachably secured to the inside of the housing in a manner to surround the impeller when the housing is assembled to the bearing support.
- a discharge nozzle is inserted through an opening of the housing wall with its inner end received in the discharge outlet of the gas-collectin g scroll in the assembled relation and in the preferred form of the invention the discharge nozzle is detachably secured to the housing by one or more bolts passing through a collar of the nozzle into threaded apertures on the outside wall of the housing.
- the passage in the discharge nozzle is tapered to increase in cross-sectional diameter from the outlet of the scroll through the opening of the casing, and the taper is preferably matched to a similar tapered increase for the compressed gascollecting scroll towards the outlet of the scroll.
- FIG. 1 is a cross-sectional side elevational view of a selfcontained electric motor and centrifugal gas compressor assembly embodying the invention
- FIG. 2 is an enlarged cross-sectional view of the compressor portion of the assembly showing the manner of securing the compressed gas-collecting scroll on the inside of the outer housing wall;
- FIG. 3 is a section on the line III-III of FIG. 2 to show the details of the discharge nozzle and its manner of assembly on the outer casing.
- a bearing support member is shown at and projecting on the back side of bearing support member 10 is a'bearing assembly 11 within which is journaled an electric motor armature shaft 12.
- An outer housing 13 containing an electric motor field 14 is detachably secured by means of bolts such as the bolts shown at 15 to the back side of the bearing support member 10 to enclose electric motor armature therein.
- the armature motor shaft 12 extends through an opening of the bearing support 10 to the front side thereof and a bull gear 16 meshes with a pinion 17 for an impeller shaft 18 which is journaled within the bearing assembly 19 projecting from the front side of the bearing support member 10.
- a rotatable centrifugal gas impeller 20 is secured to an end of the impeller shaft 13 as shown.
- An outer casing 21 is detachably secured by bolts such as the bolts 22 to the front side of the bearing support member 10 to substantially enclose the gearing 16, I7 and the centrifugal gas impeller 20 therein.
- a compressed gas-collecting scroll 30 is detachably secured by bolts such as the bolt shown at 31 to an inwardly projecting collar 32 of the outer casing 21.
- the cross-sectional diameter of the gas-collecting passage 34 of the scroll increases from a minimum crosssectional diameter at 35 to a maximum cross-sectional diameter at 36 which is the discharge outlet of the gas-collecting scroll 30.
- the change in shape and dimensions of the gas-collecting passage 34 is preferably toroidal with the center of the diameter of the cross section gradually moving away from the base wall of the scroll as shown at 37 and 38 in the direction towards the discharge outlet 36.
- a discharge nozzle 40 is passed through an outlet opening 41 of the outer casing 21 and its inner end 42 is received within the counter bored opening 43 of the discharge outlet 36 for the scroll 30.
- Suitable gaskets such as shown at 44 and 45 may be provided to assure a gas tight seal.
- the discharge nozzle 40 is provided with an exterior collar structure 46 which is attached by means of bolts 47 and 48 to the outside wall ofthe outer casing 21.
- the gas compressor of the invention may be readily assembled by bolting the scroll 31) to the inside collar wall 32 of the outer housing 21. Thereafter the outer housing 21 may be secured to the bearing support 10 by means of bolts such as shown at 22 and the scroll 30 will be supported in a position surrounding the rotatable gas impeller 20. Thereafter the discharge nozzle 40 may be inserted through the discharge opening 41 of the housing 21 and bolted thereto with its inner end received in the discharge outlet 36 of the scroll 30. It is of course apparent that the discharge nozzle 40 may be secured to the housing 21 and the scroll 30 while the scroll 30 is assembled to the outer housing 21 and before the outer housing 21 is attached to the bearing support member 10 if desired.
- the discharge nozzle 40 is provided with a discharge passage 50 that is tapered to increase in diameter from the inner end adjoining the discharge outlet 36 of the scroll 30 to its outer end on the exterior of the outer housing wall 21. It is believed preferable that the discharge passage through the nozzle 40 be tapered with a similar taper to the taper of the gas-collecting passage 34 of the scroll 30.
- a centrifugal gas compressor comprising, a bearing sup port member, a bearing assembly on said support member, a
- rotatable gas impeller journaled in said bearing assembly, a housing member detachably secured to said bearing support member to enclose said bearing assembly and said impeller in the assembled relation, a compressed gas-collecting scroll, means detachably securing said scroll to an inside wall of said housing in a position to surround said impeller in the assembled relation of said housing to said support member, an opening in said housing, and a compressed gas nozzle extending through said opening within said housing and detachably secured to said housing in the assembled relation, said scroll having a compressed gas outlet, and the inner end of said nozzle being received in the gas outlet of said scroll in the assembled relation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1447270A | 1970-02-26 | 1970-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3635579A true US3635579A (en) | 1972-01-18 |
Family
ID=21765719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14472A Expired - Lifetime US3635579A (en) | 1970-02-26 | 1970-02-26 | Discharge nozzle arrangement for centrifugal gas compressor |
Country Status (6)
Country | Link |
---|---|
US (1) | US3635579A (en) |
JP (1) | JPS5038005Y2 (en) |
BE (1) | BE763356A (en) |
ES (1) | ES388626A1 (en) |
FR (1) | FR2079046A5 (en) |
GB (1) | GB1314945A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3927890A (en) * | 1973-09-18 | 1975-12-23 | Westinghouse Electric Corp | Rotating element fluid seal for centrifugal compressor |
US3927889A (en) * | 1973-09-18 | 1975-12-23 | Westinghouse Electric Corp | Rotating element fluid seal for centrifugal compressor |
US4213307A (en) * | 1978-11-13 | 1980-07-22 | Westinghouse Electric Corp. | Oil separation and return system for centrifugal refrigerant compressors |
US4518311A (en) * | 1979-10-03 | 1985-05-21 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump |
US4687411A (en) * | 1985-03-25 | 1987-08-18 | Ebara Corporation | Speed increasing gear for a centrifugal compressor |
US5108257A (en) * | 1989-05-26 | 1992-04-28 | Pacific Machinery & Engineering Co., Ltd. | Impeller for turbo pump for water jet propulsion machinery, and turbo pump including same impeller |
US5253986A (en) * | 1992-05-12 | 1993-10-19 | Milton Roy Company | Impeller-type pump system |
US5266003A (en) * | 1992-05-20 | 1993-11-30 | Praxair Technology, Inc. | Compressor collector with nonuniform cross section |
US6376950B1 (en) * | 2000-08-11 | 2002-04-23 | Westinghouse Air Brake Technologies Corporation | Combined bearing plate and stator frame casting |
US7789627B2 (en) | 2005-12-15 | 2010-09-07 | Industrial Technology Research Institute | Centrifugal impeller |
EP3879114A1 (en) * | 2020-03-13 | 2021-09-15 | Honeywell International Inc. | Sealable vapor cooled compressor housing with adapter |
US11421695B2 (en) | 2018-01-19 | 2022-08-23 | Concepts Nrec, Llc | Turbomachines with decoupled collectors |
US11841031B2 (en) | 2020-03-13 | 2023-12-12 | Honeywell International Inc. | Compressor sensor mount |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4922691U (en) * | 1972-05-30 | 1974-02-26 | ||
JPS5514784Y2 (en) * | 1976-11-05 | 1980-04-04 | ||
JPS58161916U (en) * | 1982-04-20 | 1983-10-28 | 株式会社中村機器エンジニアリング | Transfer device between conveyors |
WO1985001328A1 (en) * | 1983-09-22 | 1985-03-28 | Ebara Corporation | Rotary gas machine |
JPH0229050Y2 (en) * | 1984-11-16 | 1990-08-03 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US494890A (en) * | 1893-04-04 | eateatj | ||
US666234A (en) * | 1900-06-11 | 1901-01-15 | John D Mcrae | Lining for centrifugal pumps. |
US1545506A (en) * | 1924-02-25 | 1925-07-14 | Edward N Mackley | Removable liner for centrifugal pumps |
US1914919A (en) * | 1931-10-30 | 1933-06-20 | Allis Chalmers Mfg Co | Centrifugal pump |
FR802529A (en) * | 1936-03-03 | 1936-09-07 | Beaudrey Bergeron | Dredge pump |
US2695131A (en) * | 1950-12-02 | 1954-11-23 | Besler Corp | Supercharger |
US3174680A (en) * | 1963-06-27 | 1965-03-23 | Westinghouse Electric Corp | Shafting for gas compressors |
US3367274A (en) * | 1966-08-26 | 1968-02-06 | Textron Inc | Rotary pump |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3044684A (en) * | 1961-02-24 | 1962-07-17 | Cooper Bessemer Corp | Centrifugal compressor construction |
-
1970
- 1970-02-26 US US14472A patent/US3635579A/en not_active Expired - Lifetime
-
1971
- 1971-02-22 JP JP1971009718U patent/JPS5038005Y2/ja not_active Expired
- 1971-02-24 BE BE763356A patent/BE763356A/en not_active IP Right Cessation
- 1971-02-25 FR FR7106394A patent/FR2079046A5/fr not_active Expired
- 1971-04-19 GB GB2322271*A patent/GB1314945A/en not_active Expired
- 1971-09-25 ES ES388626A patent/ES388626A1/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US494890A (en) * | 1893-04-04 | eateatj | ||
US666234A (en) * | 1900-06-11 | 1901-01-15 | John D Mcrae | Lining for centrifugal pumps. |
US1545506A (en) * | 1924-02-25 | 1925-07-14 | Edward N Mackley | Removable liner for centrifugal pumps |
US1914919A (en) * | 1931-10-30 | 1933-06-20 | Allis Chalmers Mfg Co | Centrifugal pump |
FR802529A (en) * | 1936-03-03 | 1936-09-07 | Beaudrey Bergeron | Dredge pump |
US2695131A (en) * | 1950-12-02 | 1954-11-23 | Besler Corp | Supercharger |
US3174680A (en) * | 1963-06-27 | 1965-03-23 | Westinghouse Electric Corp | Shafting for gas compressors |
US3367274A (en) * | 1966-08-26 | 1968-02-06 | Textron Inc | Rotary pump |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3927890A (en) * | 1973-09-18 | 1975-12-23 | Westinghouse Electric Corp | Rotating element fluid seal for centrifugal compressor |
US3927889A (en) * | 1973-09-18 | 1975-12-23 | Westinghouse Electric Corp | Rotating element fluid seal for centrifugal compressor |
US4213307A (en) * | 1978-11-13 | 1980-07-22 | Westinghouse Electric Corp. | Oil separation and return system for centrifugal refrigerant compressors |
US4518311A (en) * | 1979-10-03 | 1985-05-21 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump |
US4687411A (en) * | 1985-03-25 | 1987-08-18 | Ebara Corporation | Speed increasing gear for a centrifugal compressor |
US5108257A (en) * | 1989-05-26 | 1992-04-28 | Pacific Machinery & Engineering Co., Ltd. | Impeller for turbo pump for water jet propulsion machinery, and turbo pump including same impeller |
US5253986A (en) * | 1992-05-12 | 1993-10-19 | Milton Roy Company | Impeller-type pump system |
US5266003A (en) * | 1992-05-20 | 1993-11-30 | Praxair Technology, Inc. | Compressor collector with nonuniform cross section |
US6376950B1 (en) * | 2000-08-11 | 2002-04-23 | Westinghouse Air Brake Technologies Corporation | Combined bearing plate and stator frame casting |
AU779764B2 (en) * | 2000-08-11 | 2005-02-10 | Westinghouse Air Brake Technologies Corporation | Combined bearing plate and stator frame casting |
US7789627B2 (en) | 2005-12-15 | 2010-09-07 | Industrial Technology Research Institute | Centrifugal impeller |
US11421695B2 (en) | 2018-01-19 | 2022-08-23 | Concepts Nrec, Llc | Turbomachines with decoupled collectors |
EP3879114A1 (en) * | 2020-03-13 | 2021-09-15 | Honeywell International Inc. | Sealable vapor cooled compressor housing with adapter |
US11841031B2 (en) | 2020-03-13 | 2023-12-12 | Honeywell International Inc. | Compressor sensor mount |
Also Published As
Publication number | Publication date |
---|---|
GB1314945A (en) | 1973-04-26 |
ES388626A1 (en) | 1974-02-16 |
BE763356A (en) | 1971-08-24 |
JPS5038005Y2 (en) | 1975-11-05 |
JPS4619U (en) | 1971-09-13 |
FR2079046A5 (en) | 1971-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MCQUAY-PERFEX, INC., A CORP. OF MN, MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WESTINGHOUSE ELECTRIC CORPORATION, A CORP. OF PA;REEL/FRAME:003954/0610 Effective date: 19820204 Owner name: MCQUAY-PERFEX, INC., MINNEAPOLIS, MN A CORP. OF MN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WESTINGHOUSE ELECTRIC CORPORATION, A CORP. OF PA;REEL/FRAME:003954/0610 Effective date: 19820204 |
|
AS | Assignment |
Owner name: MCQUAY INC. Free format text: CHANGE OF NAME;ASSIGNOR:MCQUAY-PREFEX INC.;REEL/FRAME:004190/0553 Effective date: 19830528 |
|
AS | Assignment |
Owner name: SNYDER GENERAL CORPORATION, STATELESS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MCQUAY INC.;REEL/FRAME:004607/0047 Effective date: 19860327 Owner name: SNYDER GENERAL CORPORATION Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MCQUAY INC.;REEL/FRAME:004607/0047 Effective date: 19860327 |
|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT, INC., 2700 DIAMOND SHA Free format text: SECURITY INTEREST;ASSIGNOR:MCQUAY INC., A MN CORP.;REEL/FRAME:004690/0296 Effective date: 19841102 |
|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT INC.,TEXAS Free format text: SECURITY INTEREST;ASSIGNOR:SNYDERGENERAL CORPORATION;REEL/FRAME:004765/0735 Effective date: 19870630 Owner name: CITICORP INDUSTRIAL CREDIT INC., 2700 DIAMOND SHAM Free format text: SECURITY INTEREST;ASSIGNOR:SNYDERGENERAL CORPORATION;REEL/FRAME:004765/0735 Effective date: 19870630 |
|
AS | Assignment |
Owner name: CITICORP NORTH AMERICA, INC., NEW YORK Free format text: SECURITY INTEREST;ASSIGNOR:SNYDERGENERAL CORPORATION, A MN CORP.;REEL/FRAME:005013/0592 Effective date: 19881117 |
|
AS | Assignment |
Owner name: MCQUAY INC., A CORP. OF MINNESOTA, MINNESOTA Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP NORTH AMERICA, INC.;REEL/FRAME:005278/0013 Effective date: 19881117 Owner name: SNYDERGENERAL CORPORATION, A CORP. OF MINNESOTA, T Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP NORTH AMERICA, INC.;REEL/FRAME:005278/0013 Effective date: 19881117 |
|
AS | Assignment |
Owner name: SNYDERGENERAL CORPORATION A CORP. OF DELAWARE Free format text: RELEASE BY SECOND PARTY OF A SECURITY AGREEMENT RECORDED AT REEL 5013 FRAME 592.;ASSIGNOR:CITICORP NORTH AMERICA, INC. A CORP. OF DELAWARE;REEL/FRAME:006104/0270 Effective date: 19920326 |