EP0004120A3 - Gear-type machine with relief means for the liquid in the interengagement space between the teeth - Google Patents

Gear-type machine with relief means for the liquid in the interengagement space between the teeth Download PDF

Info

Publication number
EP0004120A3
EP0004120A3 EP79200119A EP79200119A EP0004120A3 EP 0004120 A3 EP0004120 A3 EP 0004120A3 EP 79200119 A EP79200119 A EP 79200119A EP 79200119 A EP79200119 A EP 79200119A EP 0004120 A3 EP0004120 A3 EP 0004120A3
Authority
EP
European Patent Office
Prior art keywords
interengagement
teeth
gear
space
liquid
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.)
Granted
Application number
EP79200119A
Other languages
German (de)
Other versions
EP0004120B1 (en
EP0004120A2 (en
Inventor
Theodorus Henricus Korse
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.)
Korse Theodorus Henricus
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0004120A2 publication Critical patent/EP0004120A2/en
Publication of EP0004120A3 publication Critical patent/EP0004120A3/en
Application granted granted Critical
Publication of EP0004120B1 publication Critical patent/EP0004120B1/en
Expired legal-status Critical Current

Links

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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Gears, Cams (AREA)
EP79200119A 1978-03-10 1979-03-09 Gear-type machine with relief means for the liquid in the interengagement space between the teeth Expired EP0004120B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2810563 1978-03-10
DE2810563A DE2810563C2 (en) 1978-03-10 1978-03-10 Gear machine (pump or motor)

Publications (3)

Publication Number Publication Date
EP0004120A2 EP0004120A2 (en) 1979-09-19
EP0004120A3 true EP0004120A3 (en) 1979-10-03
EP0004120B1 EP0004120B1 (en) 1983-04-06

Family

ID=6034123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79200119A Expired EP0004120B1 (en) 1978-03-10 1979-03-09 Gear-type machine with relief means for the liquid in the interengagement space between the teeth

Country Status (3)

Country Link
US (1) US4290739A (en)
EP (1) EP0004120B1 (en)
DE (1) DE2810563C2 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001004A1 (en) * 1982-09-07 1984-03-15 Ford Werke Ag Helical gear pump
US4824331A (en) * 1987-07-29 1989-04-25 Hydreco, Incorporated Variable discharge gear pump with energy recovery
DE9017839U1 (en) * 1990-12-18 1992-04-30 VSE Volumentechnik GmbH, 58809 Neuenrade Volume sensor
US5131829A (en) * 1991-06-19 1992-07-21 Eaton Corporation Trapped volume vent means for meshing lobes of roots-type supercharger
GB2313627A (en) * 1996-05-29 1997-12-03 Roy William Masters Rotary engine
US5733111A (en) * 1996-12-02 1998-03-31 Ford Global Technologies, Inc. Gerotor pump having inlet and outlet relief ports
US5865239A (en) * 1997-02-05 1999-02-02 Micropump, Inc. Method for making herringbone gears
US6544008B1 (en) * 1997-07-18 2003-04-08 John K. Apostolides Internal vent for reducing seal pressure in prelubrication pump assembly
US6708710B1 (en) * 1997-10-30 2004-03-23 Rpm Industries, Inc. Vehicle fluid change apparatus and method
US9062575B2 (en) * 1997-10-30 2015-06-23 RPM Industries, LLC Methods and systems for performing, monitoring and analyzing multiple machine fluid processes
US6988506B1 (en) 1997-10-30 2006-01-24 Rpm Industries, Inc. Fluid transfer system
US7150286B2 (en) * 1997-10-30 2006-12-19 Rpm Industries, Inc. Methods and systems for performing, monitoring and analyzing multiple machine fluid processes
US6042352A (en) * 1998-08-12 2000-03-28 Argo-Tech Corporation Bearing with pulsed bleed configuration
JP3830313B2 (en) * 1999-09-06 2006-10-04 株式会社ジェイテクト Gear pump
US6853954B2 (en) 2002-09-24 2005-02-08 John K. Apostolides Methods and systems for collecting and processing data in association with machine operation and maintenance
JPWO2006090495A1 (en) * 2005-02-24 2008-07-24 株式会社島津製作所 Gear pump
US20070201989A1 (en) * 2005-10-14 2007-08-30 Parker-Hannifin Low ripple gear pump/motor
US20070178003A1 (en) * 2005-11-22 2007-08-02 Parker-Hannifin Corporation Gear pump with ripple chamber for low noise and pressure ripples
US20080063554A1 (en) * 2006-09-08 2008-03-13 Gifford Thomas K Precision flow gear pump
US20090089168A1 (en) * 2007-01-10 2009-04-02 Phyllis Adele Schneck ACE (Alternative Currency Exchange): Alternative Currency Tracking and Mapping System and Method
ITBO20070172A1 (en) * 2007-03-14 2008-09-15 Mario Antonio Morselli HYDRAULIC EQUIPMENT WITH REFINED GEARS
US7878781B2 (en) * 2007-12-11 2011-02-01 Hamilton Sundstrand Corporation Gear pump cavitation reduction
US9677559B2 (en) 2011-02-25 2017-06-13 Hamilton Sundstrand Corporation Bearing face geometry for gear pump
US8814547B2 (en) 2011-02-25 2014-08-26 Hamilton Sundstrand Corporation Seal retaining sleeve for gear pump
US8801410B2 (en) 2011-02-25 2014-08-12 Hamilton Sundstrand Corporation Coupling shaft for gear pump
US8992192B2 (en) 2011-02-25 2015-03-31 Hamilton Sundstrand Corporation Input shaft lubrication for gear pump
US8911222B2 (en) 2011-02-25 2014-12-16 Hamilton Sundstrand Corporation Input shaft assembly for gear pump
US9303644B2 (en) 2013-11-26 2016-04-05 Woodward, Inc. Gear pump bearing dam
DE102015201961A1 (en) 2015-02-04 2016-08-04 Volkswagen Aktiengesellschaft Method for operating a positive displacement pump and a dedicated positive displacement pump
US10563653B2 (en) 2016-01-12 2020-02-18 Hamilton Sundstrand Corporation Gear pump
US10443597B2 (en) 2016-01-12 2019-10-15 Hamilton Sundstrand Corporation Gears and gear pumps
DE102020100241A1 (en) 2020-01-08 2021-07-08 Thyssenkrupp Ag Process for the production of phosphoric acid and calcium sulphate quality suitable for clinker process for the commercial and industrial utilization of calcium sulphate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136142A (en) * 1935-06-25 1938-11-08 American Viscose Corp Rayon-spinning pump
US2781730A (en) * 1952-10-22 1957-02-19 Thompson Prod Inc Implement pump
FR1355756A (en) * 1963-02-07 1964-03-20 Johannes Freres Improved gear pump intended more particularly for public works machinery
CH399193A (en) * 1960-08-18 1966-03-31 Reiners & Wiggermann Variable displacement gear pump
FR2352947A1 (en) * 1976-05-25 1977-12-23 Bosch Gmbh Robert GEAR MACHINE (PUMP OR MOTOR)
DE2701303A1 (en) * 1977-01-14 1978-07-20 Zahnradfabrik Friedrichshafen Hydraulic pump with constantly engaged gearwheels - has high and low pressure areas in housing and pockets in toothing engagement area

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634023A (en) * 1927-06-28 Ptjmp
US1129090A (en) * 1914-04-08 1915-02-23 American La France Fire Engine Company Inc Gear-pump.
US1233069A (en) * 1916-05-22 1917-07-10 Leonard Pump And Motor Co Pump and liquids.
US1706829A (en) * 1928-05-28 1929-03-26 Joseph Mercadante Pump
US2147405A (en) * 1935-01-05 1939-02-14 Trico Products Corp Motor vehicle power plant
US2338065A (en) * 1940-06-13 1943-12-28 Joseph F Keller Gear pump
US2354992A (en) * 1941-11-11 1944-08-01 Westinghouse Electric & Mfg Co Gear pump
US2884864A (en) * 1955-04-14 1959-05-05 Borg Warner Pressure loaded pump, trapping grooves
DE2249952C3 (en) * 1972-10-12 1975-03-27 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulic gear machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136142A (en) * 1935-06-25 1938-11-08 American Viscose Corp Rayon-spinning pump
US2781730A (en) * 1952-10-22 1957-02-19 Thompson Prod Inc Implement pump
CH399193A (en) * 1960-08-18 1966-03-31 Reiners & Wiggermann Variable displacement gear pump
FR1355756A (en) * 1963-02-07 1964-03-20 Johannes Freres Improved gear pump intended more particularly for public works machinery
FR2352947A1 (en) * 1976-05-25 1977-12-23 Bosch Gmbh Robert GEAR MACHINE (PUMP OR MOTOR)
DE2701303A1 (en) * 1977-01-14 1978-07-20 Zahnradfabrik Friedrichshafen Hydraulic pump with constantly engaged gearwheels - has high and low pressure areas in housing and pockets in toothing engagement area

Also Published As

Publication number Publication date
DE2810563C2 (en) 1982-10-28
EP0004120B1 (en) 1983-04-06
US4290739A (en) 1981-09-22
EP0004120A2 (en) 1979-09-19
DE2810563A1 (en) 1979-09-13

Similar Documents

Publication Publication Date Title
EP0004120A3 (en) Gear-type machine with relief means for the liquid in the interengagement space between the teeth
GB2042068B (en) Pump for use in atomisers
JPS5558287A (en) Improvement in forming neomesophase
JPS5641558A (en) Improving airrflow in compact diskkdrive unit
JPS52103227A (en) Turning in machine
JPS52103226A (en) Turning in machine
GB2030227B (en) Rotary-piston fluid machines
JPS5336703A (en) Gear pumps reduced in power requirement
CS191277B2 (en) Device in the peeling machines
MY8000191A (en) Improvements in or relating to a container
JPS535407A (en) Improvements in giaphragm pumps
MY7900172A (en) Improvements in or relating to a container
HK17984A (en) Transflector
DE3164938D1 (en) Internal-axis gear-type fluid machine with distribution means
CS283679A2 (en) Elektronova tryska in line barevne televizni obrazovky
JPS52103228A (en) Turning in machine
DE2963633D1 (en) Apparatus for limiting the fluid volume output in a rotary pump
JPS5694492A (en) Salessdata checkksystem in vendor
GB1541393A (en) Device for use in beating or refining machines
JPS5411870A (en) Toppdevice in sheettbending machine
JPS52100604A (en) Liquid rotaryypiston machines
ZA774350B (en) Improvements in or relating to dispensers
HK62380A (en) Improvements in liquid dispensers
JPS5634996A (en) Working machine* liquid pump in particular
ZA765692B (en) Improvements in grinders

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH FR GB IT NL SE

AK Designated contracting states

Designated state(s): CH FR GB IT NL SE

17P Request for examination filed
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KORSE, THEODORUS HENRICUS

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19830406

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19840228

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840306

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19840331

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19870310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19870331

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19871130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881117

EUG Se: european patent has lapsed

Ref document number: 79200119.0

Effective date: 19880215

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT