US20220049697A1 - Controllable Screw Spindle Pump - Google Patents

Controllable Screw Spindle Pump Download PDF

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Publication number
US20220049697A1
US20220049697A1 US17/299,283 US201917299283A US2022049697A1 US 20220049697 A1 US20220049697 A1 US 20220049697A1 US 201917299283 A US201917299283 A US 201917299283A US 2022049697 A1 US2022049697 A1 US 2022049697A1
Authority
US
United States
Prior art keywords
chamber
valve
spindle
throttle
pump
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.)
Abandoned
Application number
US17/299,283
Other languages
English (en)
Inventor
Franz Pawellek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec GPM GmbH
Original Assignee
Nidec GPM GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nidec GPM GmbH filed Critical Nidec GPM GmbH
Assigned to NIDEC GPM GMBH reassignment NIDEC GPM GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PAWELLEK, FRANZ
Publication of US20220049697A1 publication Critical patent/US20220049697A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps 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
    • F04C2/16—Rotary-piston machines or pumps 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return 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
    • F04C2210/00—Fluid
    • F04C2210/20—Fluid liquid, i.e. incompressible
    • F04C2210/206—Oil
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • 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
    • F04C2240/00—Components
    • F04C2240/60—Shafts
US17/299,283 2018-12-10 2019-11-14 Controllable Screw Spindle Pump Abandoned US20220049697A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018131587.2 2018-12-10
DE102018131587.2A DE102018131587A1 (de) 2018-12-10 2018-12-10 Regelbare Schraubenspindelpumpe
PCT/EP2019/081324 WO2020120064A1 (de) 2018-12-10 2019-11-14 Regelbare schraubenspindelpumpe

Publications (1)

Publication Number Publication Date
US20220049697A1 true US20220049697A1 (en) 2022-02-17

Family

ID=68610214

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/299,283 Abandoned US20220049697A1 (en) 2018-12-10 2019-11-14 Controllable Screw Spindle Pump

Country Status (5)

Country Link
US (1) US20220049697A1 (de)
CN (1) CN113227579A (de)
BR (1) BR112021008020A2 (de)
DE (1) DE102018131587A1 (de)
WO (1) WO2020120064A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11773846B2 (en) 2021-12-14 2023-10-03 Leistritz Pumpen Gmbh Screw spindle pump
US11852141B2 (en) * 2021-12-14 2023-12-26 Leistritz Pumpen Gmbh Screw spindle pump
US11946469B2 (en) 2021-12-14 2024-04-02 Leistritz Pumpen Gmbh Screw spindle pump

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE504283C (de) * 1926-11-24 1930-08-02 Georg Koeppel Einrichtung zur Leistungsaenderung von Drehkolbenpumpen, insbesondere Schraubenpumpen
US2171146A (en) * 1936-12-02 1939-08-29 Imo Industri Ab Hydraulic rotary engine
GB1171291A (en) * 1965-10-12 1969-11-19 Svenska Rotor Maskiner Ab Screw Rotor Machines
GB1484994A (en) * 1973-09-03 1977-09-08 Svenska Rotor Maskiner Ab Shaft seal system for screw compressors
US4388048A (en) * 1981-03-10 1983-06-14 Dunham Bush, Inc. Stepping type unloading system for helical screw rotary compressor
US4412788A (en) * 1981-04-20 1983-11-01 Durham-Bush, Inc. Control system for screw compressor
SE439042B (sv) * 1983-07-20 1985-05-28 Imo Ab Skruvpump med regleranordning
US4515540A (en) * 1983-11-22 1985-05-07 Frick Company Variable liquid refrigerant injection port locator for screw compressor equipped with automatic variable volume ratio
US4929161A (en) * 1987-10-28 1990-05-29 Hitachi, Ltd. Air-cooled oil-free rotary-type compressor
DE19625564C2 (de) * 1996-06-26 2000-06-08 Bosch Gmbh Robert Kraftstoff-Förderpumpe für eine Kraftstoff-Einspritzpumpe für Brennkraftmaschinen
JP4110123B2 (ja) * 2004-07-12 2008-07-02 株式会社神戸製鋼所 スクリュ圧縮機
ITVI20050272A1 (it) * 2005-10-14 2007-04-15 Refcomp Spa Compressore volumetrico a vite perfezionato
DE102009056218A1 (de) 2009-11-28 2011-06-01 Robert Bosch Gmbh Schraubenspindelpumpe mit integriertem Druckbegrenzungsventil
DE102010019044B4 (de) * 2010-05-03 2014-09-04 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Schmierstoffventil für Ölpumpen von Verbrennungsmotoren
CN204099200U (zh) * 2014-09-23 2015-01-14 江森自控空调冷冻设备(无锡)有限公司 可调内容积比的螺杆压缩机

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11773846B2 (en) 2021-12-14 2023-10-03 Leistritz Pumpen Gmbh Screw spindle pump
US11852141B2 (en) * 2021-12-14 2023-12-26 Leistritz Pumpen Gmbh Screw spindle pump
US11946469B2 (en) 2021-12-14 2024-04-02 Leistritz Pumpen Gmbh Screw spindle pump

Also Published As

Publication number Publication date
DE102018131587A1 (de) 2020-06-10
BR112021008020A2 (pt) 2021-08-03
CN113227579A (zh) 2021-08-06
WO2020120064A1 (de) 2020-06-18

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Legal Events

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AS Assignment

Owner name: NIDEC GPM GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PAWELLEK, FRANZ;REEL/FRAME:056504/0306

Effective date: 20210504

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION