WO2006085863A1 - Compressor unloading valve - Google Patents
Compressor unloading valve Download PDFInfo
- Publication number
- WO2006085863A1 WO2006085863A1 PCT/US2005/003813 US2005003813W WO2006085863A1 WO 2006085863 A1 WO2006085863 A1 WO 2006085863A1 US 2005003813 W US2005003813 W US 2005003813W WO 2006085863 A1 WO2006085863 A1 WO 2006085863A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- condition
- cylinder
- compressor
- headspace
- valve
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
- F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
- Y10T29/49238—Repairing, converting, servicing or salvaging
Definitions
- FIG . 2 is a transverse sectional view of a discharge plenum of the compressor of FIG . 1 , taken along line 2 -2.
- FIG . 1 shows a compressor 20 having a housing assembly 22 containing a motor 24 driving rotors 26 and 28 having respective central longitudinal axes 500 and 502.
- the rotor 26 has a male lobed body or working portion 30 extending between a first end 31 and a second end 32.
- the working portion 30 is enmeshed with a female lobed body or working portion 34 of the female rotor 28.
- the working portion 34 has a first end 35 and a second end 36.
- Each rotor includes shaft portions (e . g . , stubs 39 , 40 , 41 , and 42 unitarily formed with the associated working portion) extending from the first and second ends of the associated working portion .
- Each of these shaft stubs is mounted to the housing by one or more bearing assemblies 44 for rotation about the associated rotor axis .
- the motor is an electric motor having a rotor and a stator .
- One of the shaft stubs of one of the rotors 26 and 28 may be coupled to the motor ' s rotor so as to permit the motor to drive that rotor about its axis .
- the rotor drives the other rotor in an opposite second direction.
- the exemplary housing assembly 22 includes a rotor housing 48 having an upstream/inlet end face 49 approximately midway along the motor length and a downstream/discharge end face 50 essentially coplanar with the rotor body ends 32 and 36. Many other configurations are possible .
- Surfaces of the housing assembly 22 combine with the enmeshed rotor bodies 30 and 34 to define inlet and outlet ports to compression pockets compressing and driving a refrigerant flow 504 from a suction (inlet) plenum 60 to a discharge (outlet) plenum 62 (FIG .2 ) .
- a series of pairs of male and female compression pockets are formed by the housing assembly 22 , male rotor body 30 and female rotor body 34.
- Each compression pocket is bounded by external surfaces of enmeshed rotors , by portions of cylindrical surfaces of male and female rotor bore surfaces in the rotor case and continuations thereof along a slide valve , and portions of face 57.
- Low-friction guidance and sealing is advantageously provided between the piston 124 and the bore surface 160.
- a longitudinally split plastic guide ring 162 of generally longitudinally elongate section is partially accommodated within an annular channel/groove in the outer surface 164 of the piston.
- the exemplary ring 162 is circumferentially energized by a coil spring 166 inboard thereof in an annular countersunk channe1/groove .
- the exemplary sealing is provided by an annular C-sectioned polymeric sealing ring 170 (e . g . , of PTFE) in an annular channel 172 proximally of the ring 162.
- the seal 170 is energized by a spring 174.
- FIG. 5 shows one such means in the form of a pressure relief valve 190 mounted in a passageway 192 through the piston between distal (face) and proximal (underside) surfaces of the piston .
- Properties of the valve 190 and the other components of the slide valve may be selected in view of compressor operating conditions so that the valve 190 is only likely to open when the slide valve has reached the fully loaded condition (e . g . , bottomed) .
- the spring rate of the main spring 120 may be relevant to this condition.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES05713015T ES2390969T3 (en) | 2005-02-07 | 2005-02-07 | Compressor discharge valve |
CN2005800478084A CN101115908B (en) | 2005-02-07 | 2005-02-07 | Compressor uninstalling valve |
PCT/US2005/003813 WO2006085863A1 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
CA002596623A CA2596623A1 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
EP05713015A EP1763620B1 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
US11/813,768 US7887310B2 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
AU2005327256A AU2005327256B2 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
TW094146726A TW200636164A (en) | 2005-02-07 | 2005-12-27 | Compressor unloading valve |
HK08105635.2A HK1116234A1 (en) | 2005-02-07 | 2008-05-21 | Compressor unloading valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2005/003813 WO2006085863A1 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006085863A1 true WO2006085863A1 (en) | 2006-08-17 |
Family
ID=36793334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/003813 WO2006085863A1 (en) | 2005-02-07 | 2005-02-07 | Compressor unloading valve |
Country Status (9)
Country | Link |
---|---|
US (1) | US7887310B2 (en) |
EP (1) | EP1763620B1 (en) |
CN (1) | CN101115908B (en) |
AU (1) | AU2005327256B2 (en) |
CA (1) | CA2596623A1 (en) |
ES (1) | ES2390969T3 (en) |
HK (1) | HK1116234A1 (en) |
TW (1) | TW200636164A (en) |
WO (1) | WO2006085863A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007142627A1 (en) | 2006-06-02 | 2007-12-13 | Carrier Corporation | Slide valve actuation for overpressure safety |
WO2009048446A1 (en) * | 2007-10-10 | 2009-04-16 | Carrier Corporation | Slide valve system for a screw compressor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8821140B2 (en) * | 2010-04-29 | 2014-09-02 | Dan Paval | Gear pump |
US20160298763A1 (en) * | 2015-04-09 | 2016-10-13 | Bendix Commercial Vehicle Systems Llc | Piston assembly for an unloader valve of an air compressor |
EP3679250B1 (en) * | 2017-09-04 | 2021-11-03 | BITZER Kühlmaschinenbau GmbH | Screw compressor |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2778598A (en) * | 1953-07-20 | 1957-01-22 | Exxon Research Engineering Co | Valve with pressure sealing device |
US4249866A (en) | 1978-03-01 | 1981-02-10 | Dunham-Bush, Inc. | Control system for screw compressor |
EP0177234A2 (en) | 1984-09-27 | 1986-04-09 | Dunham-Bush Inc. | Refrigeration system |
US4678406A (en) * | 1986-04-25 | 1987-07-07 | Frick Company | Variable volume ratio screw compressor with step control |
US5044894A (en) | 1990-11-30 | 1991-09-03 | Carrier Corporation | Capacity volume ratio control for twin screw compressors |
JPH0552195A (en) * | 1991-08-22 | 1993-03-02 | Daikin Ind Ltd | Capacity control device of screw type two-step compressor |
US6082985A (en) * | 1997-09-10 | 2000-07-04 | Kabushiki Kaisha Kobe Seiko Sho | Screw compressor |
US6302668B1 (en) | 2000-08-23 | 2001-10-16 | Fu Sheng Industrial Co., Ltd. | Capacity regulating apparatus for compressors |
US20040109782A1 (en) | 2002-12-05 | 2004-06-10 | Yan Tang | Compact control mechanism for axial motion control valves in helical screw compressors |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3593959A (en) * | 1969-07-23 | 1971-07-20 | Bobby Howard Greene | Pocket unloader valve operator |
US6024026A (en) * | 1997-06-20 | 2000-02-15 | Sico Incorporated | Tri-height folding stage |
US6431210B1 (en) * | 2001-03-27 | 2002-08-13 | Ingersoll-Rand Company | Inlet unloader valve |
-
2005
- 2005-02-07 ES ES05713015T patent/ES2390969T3/en active Active
- 2005-02-07 US US11/813,768 patent/US7887310B2/en not_active Expired - Fee Related
- 2005-02-07 CN CN2005800478084A patent/CN101115908B/en not_active Expired - Fee Related
- 2005-02-07 AU AU2005327256A patent/AU2005327256B2/en not_active Ceased
- 2005-02-07 WO PCT/US2005/003813 patent/WO2006085863A1/en active Application Filing
- 2005-02-07 CA CA002596623A patent/CA2596623A1/en not_active Abandoned
- 2005-02-07 EP EP05713015A patent/EP1763620B1/en not_active Not-in-force
- 2005-12-27 TW TW094146726A patent/TW200636164A/en unknown
-
2008
- 2008-05-21 HK HK08105635.2A patent/HK1116234A1/en not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2778598A (en) * | 1953-07-20 | 1957-01-22 | Exxon Research Engineering Co | Valve with pressure sealing device |
US4249866A (en) | 1978-03-01 | 1981-02-10 | Dunham-Bush, Inc. | Control system for screw compressor |
EP0177234A2 (en) | 1984-09-27 | 1986-04-09 | Dunham-Bush Inc. | Refrigeration system |
US4678406A (en) * | 1986-04-25 | 1987-07-07 | Frick Company | Variable volume ratio screw compressor with step control |
US5044894A (en) | 1990-11-30 | 1991-09-03 | Carrier Corporation | Capacity volume ratio control for twin screw compressors |
JPH0552195A (en) * | 1991-08-22 | 1993-03-02 | Daikin Ind Ltd | Capacity control device of screw type two-step compressor |
US6082985A (en) * | 1997-09-10 | 2000-07-04 | Kabushiki Kaisha Kobe Seiko Sho | Screw compressor |
US6302668B1 (en) | 2000-08-23 | 2001-10-16 | Fu Sheng Industrial Co., Ltd. | Capacity regulating apparatus for compressors |
US20040109782A1 (en) | 2002-12-05 | 2004-06-10 | Yan Tang | Compact control mechanism for axial motion control valves in helical screw compressors |
Non-Patent Citations (1)
Title |
---|
See also references of EP1763620A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007142627A1 (en) | 2006-06-02 | 2007-12-13 | Carrier Corporation | Slide valve actuation for overpressure safety |
EP2029860A1 (en) * | 2006-06-02 | 2009-03-04 | Carrier Corporation | Slide valve actuation for overpressure safety |
US8206132B2 (en) | 2006-06-02 | 2012-06-26 | Carrier Corporation | Slide valve actuation for overpressure safety |
EP2029860A4 (en) * | 2006-06-02 | 2013-01-23 | Carrier Corp | Slide valve actuation for overpressure safety |
WO2009048446A1 (en) * | 2007-10-10 | 2009-04-16 | Carrier Corporation | Slide valve system for a screw compressor |
Also Published As
Publication number | Publication date |
---|---|
EP1763620A4 (en) | 2007-11-07 |
AU2005327256B2 (en) | 2011-06-16 |
CN101115908B (en) | 2010-05-12 |
AU2005327256A1 (en) | 2006-08-17 |
TW200636164A (en) | 2006-10-16 |
CA2596623A1 (en) | 2006-08-17 |
ES2390969T3 (en) | 2012-11-20 |
US7887310B2 (en) | 2011-02-15 |
US20090285710A1 (en) | 2009-11-19 |
HK1116234A1 (en) | 2008-12-19 |
CN101115908A (en) | 2008-01-30 |
EP1763620B1 (en) | 2012-07-04 |
EP1763620A1 (en) | 2007-03-21 |
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DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
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