FR2348432A1 - Lubrication unit with motor driven pump - incorporates pressure discharge valve with cut off connecting pump to tank on pressure drop - Google Patents

Lubrication unit with motor driven pump - incorporates pressure discharge valve with cut off connecting pump to tank on pressure drop

Info

Publication number
FR2348432A1
FR2348432A1 FR7610953A FR7610953A FR2348432A1 FR 2348432 A1 FR2348432 A1 FR 2348432A1 FR 7610953 A FR7610953 A FR 7610953A FR 7610953 A FR7610953 A FR 7610953A FR 2348432 A1 FR2348432 A1 FR 2348432A1
Authority
FR
France
Prior art keywords
pump
cut
pressure drop
motor driven
pressure discharge
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.)
Withdrawn
Application number
FR7610953A
Other languages
French (fr)
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.)
MICRON LUBROTEC ATEL ELECTROTE
Original Assignee
MICRON LUBROTEC ATEL ELECTROTE
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 MICRON LUBROTEC ATEL ELECTROTE filed Critical MICRON LUBROTEC ATEL ELECTROTE
Priority to FR7610953A priority Critical patent/FR2348432A1/en
Priority to IT940477A priority patent/IT1116986B/en
Priority to DE19772716559 priority patent/DE2716559A1/en
Publication of FR2348432A1 publication Critical patent/FR2348432A1/en
Withdrawn legal-status Critical Current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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F04B49/106—Responsive to pumped volume
    • 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
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

A hydraulic lubrication unit is fitted with a motor driven hydraulic pump governed by a control unit and fed from a supply tank. A pressure discharge device (38) is incorporated, which is controlled dependent upon the delivery quantity of the pump (28) and which connects the outlet circuit (12) of the pump with the supply tank (34) as soon as the delivery quantity is less than a predetermined value. The pressure discharge device (38) has a throttle passage (40) in the pump (28) outlet circuit, anda cut-off (42) which is operable dependent upon the bias of a return spring (52) and the pressure drop through the throttle passage. The cut-off (42) connects the pump outlet circuit (12) on the flow-away side of the throttle passage with the supply tank (34) as soon as the pressure drop through the throttle passage is below a specific level.
FR7610953A 1976-04-14 1976-04-14 Lubrication unit with motor driven pump - incorporates pressure discharge valve with cut off connecting pump to tank on pressure drop Withdrawn FR2348432A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7610953A FR2348432A1 (en) 1976-04-14 1976-04-14 Lubrication unit with motor driven pump - incorporates pressure discharge valve with cut off connecting pump to tank on pressure drop
IT940477A IT1116986B (en) 1976-04-14 1977-04-12 HYDRAULIC LUBRICATION CENTRAL
DE19772716559 DE2716559A1 (en) 1976-04-14 1977-04-14 HYDRAULIC LUBRICATION CENTER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610953A FR2348432A1 (en) 1976-04-14 1976-04-14 Lubrication unit with motor driven pump - incorporates pressure discharge valve with cut off connecting pump to tank on pressure drop

Publications (1)

Publication Number Publication Date
FR2348432A1 true FR2348432A1 (en) 1977-11-10

Family

ID=9171812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610953A Withdrawn FR2348432A1 (en) 1976-04-14 1976-04-14 Lubrication unit with motor driven pump - incorporates pressure discharge valve with cut off connecting pump to tank on pressure drop

Country Status (3)

Country Link
DE (1) DE2716559A1 (en)
FR (1) FR2348432A1 (en)
IT (1) IT1116986B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473385A1 (en) * 1990-08-28 1992-03-04 Daikin Industries, Limited One-main-pipe type centralized lubrication apparatus
EP1180599A1 (en) * 2000-08-16 2002-02-20 Siemens Building Technologies AG Safeguarding device for a pump, which can be used in a fluid transmission

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537285A (en) * 1983-04-11 1985-08-27 Brown Patrick A Conveyor lubricating apparatus
SE451090B (en) * 1985-12-13 1987-08-31 Alfa Laval Separation Ab METHOD FOR DETECTING AND INDICATING ERRORS IN A LUBRICANTS CIRCUIT
DE59005999D1 (en) * 1989-07-07 1994-07-14 Barmag Barmer Maschf Vane vacuum pump with metering device.
DE4203983A1 (en) * 1992-02-11 1992-08-20 Ulf Greufe DEVICE AND METHOD FOR IMPROVING THE PERFORMANCE DIGIT IN THE REFRIGERANT CIRCUIT

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531319A (en) * 1945-01-19 1950-11-21 Avco Mfg Corp Engine lubricating apparatus
US2871981A (en) * 1957-02-05 1959-02-03 Sundstand Machine Tool Co Air block valve circuit
US3071209A (en) * 1960-09-09 1963-01-01 Norgren Co C A Lubricating apparatus and control valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531319A (en) * 1945-01-19 1950-11-21 Avco Mfg Corp Engine lubricating apparatus
US2871981A (en) * 1957-02-05 1959-02-03 Sundstand Machine Tool Co Air block valve circuit
US3071209A (en) * 1960-09-09 1963-01-01 Norgren Co C A Lubricating apparatus and control valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473385A1 (en) * 1990-08-28 1992-03-04 Daikin Industries, Limited One-main-pipe type centralized lubrication apparatus
US5165502A (en) * 1990-08-28 1992-11-24 Daikin Industries Ltd. One-main pipe type centralized lubrication apparatus
EP1180599A1 (en) * 2000-08-16 2002-02-20 Siemens Building Technologies AG Safeguarding device for a pump, which can be used in a fluid transmission
US6595233B2 (en) 2000-08-16 2003-07-22 Siemens Building Technologies Ag Safety device for a fluid transmission

Also Published As

Publication number Publication date
IT1116986B (en) 1986-02-10
DE2716559A1 (en) 1977-10-20

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Legal Events

Date Code Title Description
ST Notification of lapse