EP2573398A2 - Système de lubrifiant à soupape de contrôle de capacité - Google Patents

Système de lubrifiant à soupape de contrôle de capacité Download PDF

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Publication number
EP2573398A2
EP2573398A2 EP12184384A EP12184384A EP2573398A2 EP 2573398 A2 EP2573398 A2 EP 2573398A2 EP 12184384 A EP12184384 A EP 12184384A EP 12184384 A EP12184384 A EP 12184384A EP 2573398 A2 EP2573398 A2 EP 2573398A2
Authority
EP
European Patent Office
Prior art keywords
pump
lubricant
lubricant system
diaphragm
control device
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Withdrawn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
EP12184384A
Other languages
German (de)
English (en)
Other versions
EP2573398A3 (fr
Inventor
Christian Richter
Mark Tepler
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.)
Mahle International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2573398A2 publication Critical patent/EP2573398A2/fr
Publication of EP2573398A3 publication Critical patent/EP2573398A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/32—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
    • 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/52—Conditions after a throttle
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/54—Conditions in a control cylinder/piston unit
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/58—Valve parameters
    • F04C2270/585—Controlled or regulated

Definitions

  • the present invention relates to a lubricant system having a pump for conveying a lubricant flow.
  • the invention also relates to an internal combustion engine or a transmission with such a lubricant system.
  • Lubricant systems are used today in all motor vehicles and serve to supply lubricating components, such as an internal combustion engine or a transmission, with lubricant.
  • lubricating components such as an internal combustion engine or a transmission
  • needs-based lubrication is very important in order to achieve an optimal lubricating effect. For example, if a lubricant flow is pumped through the lubricant system at too high a pressure, the lubricating effect may suffer.
  • controllable lubricant pumps such as vane pumps or pendulum slide pumps in use, but the regulation thereof often done by means of separate pressure sensors and control devices and thus relatively complex and expensive.
  • the present invention addresses the problem of providing a lubricant system with an improved embodiment in which a flow control in a structurally simple and cost-effective manner.
  • the present invention is based on the general idea, in a lubricant system with a controllable pump for conveying a lubricant flow, a lubricant reservoir and with at least one component to be lubricated to provide an adjustable in terms of their passage rate and thus a pressure difference diaphragm there is a definable volume flow, that is lubricant flow, lets through and wherein a control device is provided, which is designed to control the delivery rate of the pump as a function of the pressure difference at the diaphragm.
  • a control device which is designed to control the delivery rate of the pump as a function of the pressure difference at the diaphragm.
  • the pressure upstream of the orifice increases due to the unchanged delivery rate of the pump, which leads to an increased pressure difference at the orifice.
  • the rising pressure difference makes itself felt by an increasing pressure in a line in which the control device is arranged, which is adjusted by the increasing pressure in the control device, a piston of the control device and thereby reduces the flow rate of the pump.
  • this also works the other way around, ie with decreasing differential pressure at the diaphragm caused, for example, by opening the diaphragm.
  • the pressure on the control device decreases, whereupon a spring pushes the piston back and thereby increases its delivery capacity via the connection to the pump.
  • the adjustable aperture can thus the delivery rate of the pump in a structurally simple way and be controlled / regulated completely without electronic control.
  • the panel itself is controlled for example via an engine control unit and thereby adapted to the corresponding need for lubricant.
  • the diaphragm can be designed as a switchable valve with two switching positions or as a proportional valve.
  • a proportional valve the volume flow flowing through the diaphragm can be controlled very precisely and adapted to the corresponding requirement of the component to be lubricated.
  • the diaphragm has an actuating device with a piston.
  • the piston is mounted translationally adjustable in a cylinder and biased against the prevailing in a control chamber fluid pressure by means of a spring.
  • the spring causes a reset of the piston and thus adjusting the aperture to a predefined passage size, for example, 5 L / min with decreasing fluid pressure.
  • the predefined passage size of the diaphragm ensures perfect lubrication of the component to be lubricated.
  • the control device of the pump is formed so that it also has a spring which causes a increase in the delivery rate of the pump at a pressure drop in a local control chamber. Both springs serve a fail-safe function.
  • a lubricant system 1 has a controllable pump 2 for conveying a lubricant flow, a lubricant reservoir 3 and at least one component 4 to be lubricated, in particular an internal combustion engine or a transmission.
  • a lubricant system 1 which of course can be generally designed as a fluid system and therefore may also include other fluids.
  • an aperture 5 which is adjustable with regard to its passage rate and thus a pressure difference occurring there is arranged to limit the amount of lubricant flow.
  • control device 6 which opens or closes depending on the differential pressure at the diaphragm 5, wherein, of course, any intermediate opening positions conceivable are, and thereby a delivery rate of the pump 2 is lowered or increased.
  • the control device 6 may have a spring-loaded and biased by a spring 7 piston 8.
  • this also works the other way around, ie with decreasing differential pressure at the aperture 5, caused for example by opening the aperture 5.
  • the pressure decreases at the control device 6, whereupon there the spring 7 pushes back the piston 8 and thereby on the Connection to the pump 2 whose delivery increases.
  • the connection between the control device 6 and the pump 2 may be an actuator 15, for example.
  • the aperture 5 can be designed as a switchable valve with two switch positions or as a proportional valve.
  • the volume flow flowing through the orifice 5 can be controlled particularly precisely and adapted to the corresponding requirement of the component 4 to be lubricated.
  • the aperture 5 has an adjusting device 12 with a piston 13.
  • the piston 13 can be mounted translationally adjustable in a cylinder and biased against the in a control chamber 14 'prevailing fluid pressure by means of a spring 7'.
  • the spring 7 ' causes a decrease in the piston 13 and thus adjusting the aperture 5 to a predefined passage size, for example, 5 L / min with decreasing fluid pressure.
  • the predefined passage size of the diaphragm 5 ensures proper lubrication of the component to be lubricated 4.
  • the control device 6 of the pump 2 is formed so that their spring 7 at a pressure drop in a control chamber 14 of the control device 6, an increase in the flow rate Pump 2 causes. Both springs 7, 7 'serve a fail-safe function.
  • the volume flow which can be set via the orifice 5 can be between, for example, 5 L / min and 30 l / min.
  • a filter 9 can be provided between the pump 2 and the lubricant reservoir 3.
  • the pump 2 may be formed, for example, as a vane pump or as a pendulum slide pump, wherein the piston 8 causes an adjustment of a rotor eccentricity and thus an adjustment of the flow rate.
  • the aperture 5 is adjustable exclusively between two positions, for example between two flow rates with 5 L / min and 30 L / min.
  • a piston 13 protrudes correspondingly far into the conduit 11, whereas it is retracted in the second position.
  • a control / regulation of the adjusting device 12 can be carried out for example via an engine control unit ECU 10.
  • the spring 7 'ensures in case of failure of the engine control unit ECU 10 for a defined position of the piston 13 and thus a defined flow through the aperture 5.
  • Die Adjusting device 11 can be operated pneumatically, electrically or hydraulically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP12184384.1A 2011-09-23 2012-09-14 Système de lubrifiant à soupape de contrôle de capacité Withdrawn EP2573398A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011110011 2011-09-23
DE201210213564 DE102012213564A1 (de) 2011-09-23 2012-08-01 Schmiermittelsystem

Publications (2)

Publication Number Publication Date
EP2573398A2 true EP2573398A2 (fr) 2013-03-27
EP2573398A3 EP2573398A3 (fr) 2014-10-08

Family

ID=46963480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12184384.1A Withdrawn EP2573398A3 (fr) 2011-09-23 2012-09-14 Système de lubrifiant à soupape de contrôle de capacité

Country Status (3)

Country Link
EP (1) EP2573398A3 (fr)
JP (1) JP6347911B2 (fr)
DE (1) DE102012213564A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014205630A1 (de) 2014-03-26 2015-10-01 Mahle International Gmbh Schmiermittelsystem
SE2250827A1 (en) * 2022-07-01 2023-10-24 Durable Devices AB Monitoring the operation of a lubrication apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050216A1 (de) 2005-10-20 2007-04-26 Zf Lenksysteme Gmbh Volumenstromgeregelte, einhubige Flügelzellenpumpe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461897A1 (de) * 1974-12-31 1976-07-08 Bosch Gmbh Robert Regeleinrichtung fuer eine pumpe
JPS5923092A (ja) * 1982-07-29 1984-02-06 Hino Motors Ltd 内燃機関に使用される可変容量型ベ−ン・ポンプ
JPS62248885A (ja) * 1986-04-23 1987-10-29 Nippon Denso Co Ltd 可変容量型ポンプの流量調整装置
JPH0454292A (ja) * 1990-06-21 1992-02-21 Mazda Motor Corp ポンプ構造
DE4313597B4 (de) * 1993-04-26 2005-09-15 Linde Ag Verfahren zum Betreiben einer verstellbaren hydrostatischen Pumpe und dafür ausgebildetes hydrostatisches Antriebssystem
JP2003193819A (ja) * 2001-12-21 2003-07-09 Suzuki Motor Corp 内燃機関のオイルポンプ装置
ES2567089T3 (es) * 2008-07-15 2016-04-19 Magna Powertrain Bad Homburg GmbH Bomba de desplazamiento variable con un regulador de caudal y una válvula de presión
JP5471231B2 (ja) * 2009-09-24 2014-04-16 アイシン精機株式会社 車両用オイル供給装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050216A1 (de) 2005-10-20 2007-04-26 Zf Lenksysteme Gmbh Volumenstromgeregelte, einhubige Flügelzellenpumpe

Also Published As

Publication number Publication date
JP6347911B2 (ja) 2018-06-27
JP2013068222A (ja) 2013-04-18
DE102012213564A1 (de) 2013-03-28
EP2573398A3 (fr) 2014-10-08

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