EP0226125A3 - Variable displacement pump system variable displacement pump system - Google Patents

Variable displacement pump system variable displacement pump system Download PDF

Info

Publication number
EP0226125A3
EP0226125A3 EP86116785A EP86116785A EP0226125A3 EP 0226125 A3 EP0226125 A3 EP 0226125A3 EP 86116785 A EP86116785 A EP 86116785A EP 86116785 A EP86116785 A EP 86116785A EP 0226125 A3 EP0226125 A3 EP 0226125A3
Authority
EP
European Patent Office
Prior art keywords
pump system
variable displacement
displacement pump
variable
system variable
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
EP86116785A
Other versions
EP0226125A2 (en
EP0226125B1 (en
Inventor
Lael Brent Taplin
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.)
Vickers Inc
Original Assignee
Vickers Inc
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 Vickers Inc filed Critical Vickers Inc
Publication of EP0226125A2 publication Critical patent/EP0226125A2/en
Publication of EP0226125A3 publication Critical patent/EP0226125A3/en
Application granted granted Critical
Publication of EP0226125B1 publication Critical patent/EP0226125B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
EP86116785A 1985-12-13 1986-12-03 Variable displacement pump system Expired - Lifetime EP0226125B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80852785A 1985-12-13 1985-12-13
US808527 1991-12-16

Publications (3)

Publication Number Publication Date
EP0226125A2 EP0226125A2 (en) 1987-06-24
EP0226125A3 true EP0226125A3 (en) 1989-07-05
EP0226125B1 EP0226125B1 (en) 1991-04-03

Family

ID=25199037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116785A Expired - Lifetime EP0226125B1 (en) 1985-12-13 1986-12-03 Variable displacement pump system

Country Status (6)

Country Link
EP (1) EP0226125B1 (en)
JP (1) JPH0819922B2 (en)
CN (1) CN1007542B (en)
CA (1) CA1248410A (en)
DE (1) DE3678538D1 (en)
IN (1) IN166532B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183393A (en) * 1992-02-10 1993-02-02 Schaffner Larey D Power limiter control for a variable displacement axial piston pump
US7797092B2 (en) * 2006-11-06 2010-09-14 Caterpillar Inc Method and system for controlling machine power
CN101865143B (en) * 2010-07-08 2012-05-23 中国航天科技集团公司第六研究院第十一研究所 Device for automatically adjusting power of turbine pump
CN111911381B (en) * 2020-07-26 2022-12-06 中国航发贵州红林航空动力控制科技有限公司 Nozzle differential pressure valve mechanism with damping piston
CN113266319B (en) * 2021-07-01 2023-06-23 龙信阀业集团有限公司 Gas lift valve suitable for pressure-variable gas lift process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502546A (en) * 1947-03-28 1950-04-04 Denison Eng Co Hydraulic apparatus
US3067693A (en) * 1958-12-24 1962-12-11 United Aircraft Corp Control means for variable delivery pump
US3554093A (en) * 1967-12-04 1971-01-12 Sperry Rand Corp Constant power regulator for hydraulic pumps
US4072442A (en) * 1975-07-04 1978-02-07 Takeshi Horiuchi Variable delivery hydraulic pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502546A (en) * 1947-03-28 1950-04-04 Denison Eng Co Hydraulic apparatus
US3067693A (en) * 1958-12-24 1962-12-11 United Aircraft Corp Control means for variable delivery pump
US3554093A (en) * 1967-12-04 1971-01-12 Sperry Rand Corp Constant power regulator for hydraulic pumps
US4072442A (en) * 1975-07-04 1978-02-07 Takeshi Horiuchi Variable delivery hydraulic pump

Also Published As

Publication number Publication date
JPS62253980A (en) 1987-11-05
CN86108529A (en) 1987-06-17
EP0226125A2 (en) 1987-06-24
CA1248410A (en) 1989-01-10
DE3678538D1 (en) 1991-05-08
EP0226125B1 (en) 1991-04-03
CN1007542B (en) 1990-04-11
IN166532B (en) 1990-05-26
JPH0819922B2 (en) 1996-03-04

Similar Documents

Publication Publication Date Title
GB2187802B (en) Pump
GB8510382D0 (en) Peristaltic pump
EP0198241A3 (en) Pumping system
GB2184172B (en) Pump
GB8517150D0 (en) Pumps
GB8517304D0 (en) Pumps
DE3666606D1 (en) Variable capacity pump
GB8520529D0 (en) Peristaltic pump
GB2192241B (en) Pumps
EP0226125A3 (en) Variable displacement pump system variable displacement pump system
GB2192947B (en) Pumps
GB8511097D0 (en) Pump
GB8515576D0 (en) Pump
GB2170869B (en) Pumping systems
ZA869328B (en) Well pump
GB8624375D0 (en) Pump
GB8501114D0 (en) Pumping systems
GB8530264D0 (en) Peristaltic pump
GB8615722D0 (en) Pumps
IE850247L (en) Variable displacement hydraulic pump system
GB8519705D0 (en) Pump
ZA868865B (en) Pump
AU92882S (en) Pump
GB8525850D0 (en) Pump
KR870000826Y1 (en) Pump

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT SE

17P Request for examination filed

Effective date: 19891227

17Q First examination report despatched

Effective date: 19900522

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT SE

REF Corresponds to:

Ref document number: 3678538

Country of ref document: DE

Date of ref document: 19910508

ET Fr: translation filed
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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19931117

Year of fee payment: 8

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

Ref country code: BE

Payment date: 19931124

Year of fee payment: 8

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

Ref country code: SE

Effective date: 19941204

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

Ref country code: BE

Effective date: 19941231

EAL Se: european patent in force in sweden

Ref document number: 86116785.6

BERE Be: lapsed

Owner name: VICKERS INC.

Effective date: 19941231

EUG Se: european patent has lapsed

Ref document number: 86116785.6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: DE

Payment date: 20031230

Year of fee payment: 18

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

Ref country code: GB

Payment date: 20041104

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20041201

Year of fee payment: 19

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

Ref country code: DE

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

Effective date: 20050701

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051203

Ref country code: GB

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

Effective date: 20051203

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051203

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: 20060831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060831