EP1420148A2 - Module pour delivrer fluide ayant pression constante - Google Patents

Module pour delivrer fluide ayant pression constante Download PDF

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Publication number
EP1420148A2
EP1420148A2 EP03104157A EP03104157A EP1420148A2 EP 1420148 A2 EP1420148 A2 EP 1420148A2 EP 03104157 A EP03104157 A EP 03104157A EP 03104157 A EP03104157 A EP 03104157A EP 1420148 A2 EP1420148 A2 EP 1420148A2
Authority
EP
European Patent Office
Prior art keywords
liquid
channel
pressure
pressure control
control valve
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
EP03104157A
Other languages
German (de)
English (en)
Other versions
EP1420148B1 (fr
EP1420148A3 (fr
Inventor
Martin Weindorf
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel 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 Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1420148A2 publication Critical patent/EP1420148A2/fr
Publication of EP1420148A3 publication Critical patent/EP1420148A3/fr
Application granted granted Critical
Publication of EP1420148B1 publication Critical patent/EP1420148B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity

Definitions

  • the invention relates to a liquid module, in particular an oil module for an internal combustion engine, for generating a liquid pressure according to the preamble of Claim 1. Furthermore, the invention relates to a method for generating constant Liquid pressures according to claim 8.
  • Oil modules are known in the prior art which are used to control an oil pressure in an oil circuit for cooling pistons of an internal combustion engine are provided.
  • the oil serves as a coolant and is sprayed onto the pistons to be cooled.
  • the cooling oil jet must always be on the same piston provided for cooling Hit the spot to create effective cooling. Therefore, the oil pressure in this Area of the oil circuit must be constant.
  • the first valve is an on / off valve and the second valve is a control valve. The one from the oil pump Oil pressure generated is present at this on / off valve.
  • the piston exceeds the pressure a defined signal pressure, the piston is lifted and the Throttle area of the control valve reduces the cross-sectional area of the liquid channel, which means that less oil can flow through the liquid channel and the oil pressure increases the control valve is thus reduced to the specified oil pressure.
  • a disadvantage of the known oil module is the high cost of the two valves, as well the complex assembly of the two valves in the oil module.
  • the object of the invention is therefore to reduce the number of components and the costs. This object is solved by the features of claim 1.
  • the liquid module according to the invention is used to generate constant liquid pressures in fluid systems.
  • Such liquid modules can e.g. in fuel / Water pipes or in oil circuits are used in which constant pressures are necessary, the use of the liquid module in the piston cooling of internal combustion engines is a special use.
  • the liquid module has an inlet through which the liquid enters the liquid module and an outlet through which the liquid exits the liquid module.
  • the inlet is correspondingly connected to the outlet via a liquid channel.
  • a valve is arranged in the liquid channel, the valve being a pressure regulating valve is. In a first position, the pressure control valve closes the liquid channel Completely.
  • the pressure control valve assumes this first position when the fluid pressure is below a defined fluid pressure.
  • the defined fluid pressure is depending on the fluid pressure required in the fluid system.
  • the pressure control valve opens in a second Position the liquid channel and let the liquid at least partially to the outlet stream. This second position can take any intermediate position in which Liquid can flow through the pressure control valve.
  • the pressure control valve is connected to the via an ON / OFF channel and a pressure control channel Liquid channel connected.
  • the ON / OFF channel is on the upstream side with the pressure control valve connected.
  • the liquid pressure prevails in this ON / OFF channel the inlet enters the liquid module.
  • the pressure control channel is on the downstream side connected to the pressure control valve. Only then is there a liquid pressure in this pressure control channel on when the fluid pressure in the ON / OFF channel exceeds the defined fluid pressure exceeds.
  • the liquid pressure present in the pressure control channel can reach the maximum pressure prevailing in the ON / OFF channel, the pressure in the Pressure control channel prevailing fluid pressure is usually lower.
  • the pressure control valve fulfills the function of ON / OFF valve and the function of a control valve, so the number of for Function of the liquid module required components reduced. Further reduced assembly effort because only a single valve has to be installed.
  • the liquid module can still other components such as Liquid filter or liquid cooler be integrated.
  • the liquid filters can be before or after the pressure control valve be arranged and remove impurities from the liquid.
  • the liquid cooler can also be arranged before or after the pressure control valve, whereby they can reduce the temperature of the liquid to a defined temperature.
  • the Liquid filters can be designed as exchangeable cartridges, which have a filter housing does that e.g. can be screwed to the housing. However, there are also Embodiments are conceivable in which the liquid module has an openable volume in which a filter element can be inserted.
  • the pressure control valve has a piston area connected to the on / off channel.
  • the piston area is designed in such a way that the liquid pressure prevailing in the ON / OFF channel exceeds of the defined liquid pressure the piston area of the pressure control valve reliably stands out from its piston seat.
  • the piston area can have several Have surface areas that come into contact with the liquid and the Fluid pressure coming. As a result, the pressure control valve can be dependent on the liquid pressure execute a predefined movement.
  • the piston area of the pressure control valve has an internal volume which has a breakthrough with the ON / OFF channel is connectable.
  • the opening is located in the wall that limits the internal volume, the opening can be arranged on the circumference or in the end faces. Through the breakthrough, the liquid gets into the interior of the piston area the fluid pressure in the internal volume of the piston area has no flows is exposed and is therefore not exposed to any disruptive factors. So only that works prevailing fluid pressure on the piston area, resulting in a more precise pressure detection allows.
  • the internal volume of the piston area can be designed as desired, whereby advantageous configurations provide a cylindrical or cuboid configuration.
  • the pressure control valve has a throttle area, the Liquid channel in a partial area of its cross section through the throttle area is changeable.
  • the throttle area partly has a smaller cross-section, than the channel surrounding it. This smaller cross section can e.g. cylindrical, have conical or other shapes.
  • the throttle area is in its end area via a closure that completely closes the channel surrounding it can. The flow rate of the liquid is to be regulated by means of the throttle area then the pressure emerging through the outlet can also be adjusted.
  • a passage can be connected to the pressure control duct.
  • This passage can on Be arranged circumferentially or in the end faces of the piston region.
  • the internal volume of the piston area is in a first position only with the ON / OFF channel and in a second position only with the pressure control channel is communicating.
  • the fluid pressure works of the ON / OFF channel or the liquid pressure of the pressure control channel the piston area, whereby defined pressure conditions are given.
  • a further embodiment of the liquid module according to the invention provides that the throttle area of the pressure control valve connects to the piston area and that the Pressure control valve has a piston seat area which has an end area of the pressure control valve Are defined.
  • a pressure control valve is provided in a liquid module. With a fluid pressure, which is less than the defined minimum liquid pressure remains the pressure control valve closed.
  • the pressure control valve is connected via an ON / OFF channel connected to the liquid line coming from the inlet.
  • the pressure control valve Once through the inlet liquid pressure entering the liquid module is greater than the defined one Liquid pressure, the pressure control valve at least partially opens a throttle bore, whereby at least parts of the liquid past the pressure control valve in Can flow towards the outlet.
  • the liquid penetrates into a pressure control channel one, which is also connected to the pressure control valve.
  • the pressure control valve opens at high pressures only a small cross section and at pressures that are only slightly above the Minimum fluid pressure, the pressure control valve opens a larger cross-section.
  • an oil circuit is shown schematically.
  • the oil circuit which is used for cooling is provided by piston 10 of an internal combustion engine 11, an oil pan 12, a Oil pump 13 and an oil module 14.
  • the oil pump 13 delivers oil from the oil pan 12 the oil module 14, the oil pump of course also being arranged in the oil pan 12 can be. Due to various influences, the oil pump 13 delivers more or less oil from the oil pan 12, whereby the oil pressure in one, the oil pump 13 with the oil module 14 connecting oil line 15 is not constant.
  • the oil module 14 regulates the oil pressure and leads the piston 10 of the internal combustion engine 11 via the supply line 16 oil with a constant Oil pressure of e.g. 2.8bar too.
  • the oil is sprayed onto the pistons 10 to control the temperature to reduce in the piston 10. After the oil has cooled the pistons 10 runs the oil from the internal combustion engine 11 and is via a return line 17 Oil pan 12 fed again.
  • the oil can of course via an oil cooler (Not shown) are passed so as not to heat the oil in the oil pan 12.
  • a section of an oil module 14 is shown in section in FIG.
  • the oil module 14 has a housing 18 which has an inlet 19 and an outlet 20.
  • the Inlet 19 is connected to outlet 20 via an oil channel 21.
  • a pressure control valve 22 is arranged in the oil channel 21, with the pressure control valve 22 shown in the OPEN position.
  • the pressure control valve 22 is formed by a valve body 27 and a spiral valve spring 23.
  • the Valve spring 23 is compressed in the open position because the valve body 27 is on the valve spring 23 presses.
  • other components such as e.g. Foams or elastomers are used, which are the functions of the valve spring 23 could also meet.
  • the valve spring 23 is arranged in a spring seat 24, wherein the spring seat 24 is closed with a plug 25.
  • the spring seat also has 24 via a vent hole 26 through which air from the spring seat 24 can escape or flow when the valve body 27 is moved.
  • the valve body 27 has a piston region 28, a throttle region 29 and a closure region 30.
  • the piston area 28 has a cylindrical inner volume 31, which in the open state via a passage 32 on its end face with a pressure control channel 33 is connected. In the closed position of the pressure control valve 22 is the Connection between the pressure control channel 33 and the inner volume 31 of the piston area 28 interrupted because the piston region 28 rests in its piston seat 34 (see Figure 3).
  • the throttle area 29 is in part due to the outer contour of the piston area 28 formed.
  • a connecting rod 35 is arranged in the throttle region 29, which connects the piston region 28 with the closure region 30.
  • the oil can flow around the connecting rod 35 because the cross section of the oil passage 21 is larger than the cross section of the connecting rod 35.
  • the closure region 30 is at the open position of the pressure control valve 22 partially immersed in the spring seat 24 and thus releases the oil channel 21.
  • the Plug 36 is provided to accommodate the pressure control valve 22 is to be closed.
  • the spring seat 24 and the receptacle for the pressure control valve 22 to provide a single through hole, which is easy to manufacture is.
  • the oil flow entering the oil module through the inlet 19 has an oil pressure which is above the defined minimum oil pressure, therefore the piston area 28 is from the Piston seat 34 lifted and the pressure control channel 33 with the inner volume 31 of the Piston area 28 connected.
  • the oil pressure prevailing in the pressure control channel 33 presses on the piston region 28 and pushes the valve body 27 against the force of the Valve spring 23 in a position in which the throttle region 29 projects into the oil channel 21 and so the oil can flow through the pressure control valve 22 to the outlet 20.
  • At low Oil pressures that are above the defined minimum oil pressure will be the Closure region 30 of a throttle bore 37 arranged in the housing 18 lifted off and the oil can flow through.
  • FIG. 3 shows the oil module 14 according to FIG. 2 in a section offset by 90 °. Components corresponding to FIG. 2 are provided with the same reference symbols.
  • the inlet 19 and the outlet 20 lie in front of or behind the sectional plane shown.
  • the pressure control valve 22 is shown in the closed position, in which the Closure region 30 of the valve body 27 closes the throttle bore 37.
  • the one with Oil passage 21 connected to the inlet (not shown) surrounds the closure region 30.
  • Between the piston area 28 of the valve body 27 and the oil channel 21 is a ON / OFF channel 38 arranged. The same oil pressure prevails in this ON / OFF channel 38, as in the oil channel 21.
  • the piston region 28 has openings 39 through which the oil from the ON / OFF channel 38 penetrate into the inner volume 31 of the valve body 27 can. If the oil pressure in the inner volume 31 is greater than a predefined minimum oil pressure is, the compressive force in the piston region 28 is greater than the counterforce of the Valve spring 23, whereby the pressure control valve 22 is opened.
  • the defined minimum oil pressure is to be set by preloading and designing the valve spring. As soon as that Pressure control valve 22 opens, the valve body 27 moves axially downward. Thereby the openings 39, which the inner volume 31 with the ON / OFF channel 38 connect closed and the throttle bore 37 of the closure region 30 free given. The oil can now flow past the pressure control valve 22 (dash-dotted lines ) Shown.
  • a valve body 27 is shown in section in FIG.
  • the corresponding to Figures 2 and 3 Components are provided with the same reference symbols.
  • the individual levels A, B, C must be coordinated so that the one acting on the respective surface Pressure has the required effect.
  • the position of the openings 39 is also such to match the housing 18 that either the ON / OFF channel or the pressure control channel is connected to the inner volume 31 of the valve body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP03104157A 2002-11-15 2003-11-12 Module pour delivrer fluide ayant pression constante Expired - Lifetime EP1420148B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10253576A DE10253576A1 (de) 2002-11-15 2002-11-15 Flüssigkeitsmodul
DE10253576 2002-11-15

Publications (3)

Publication Number Publication Date
EP1420148A2 true EP1420148A2 (fr) 2004-05-19
EP1420148A3 EP1420148A3 (fr) 2005-06-01
EP1420148B1 EP1420148B1 (fr) 2006-05-31

Family

ID=32115560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104157A Expired - Lifetime EP1420148B1 (fr) 2002-11-15 2003-11-12 Module pour delivrer fluide ayant pression constante

Country Status (4)

Country Link
EP (1) EP1420148B1 (fr)
AT (1) ATE328193T1 (fr)
DE (2) DE10253576A1 (fr)
ES (1) ES2263917T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024016372A1 (fr) * 2022-07-22 2024-01-25 中车戚墅堰机车有限公司 Nouvelle soupape de réglage d'huile de moteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050063A1 (de) * 2005-10-19 2007-04-26 Bayerische Motoren Werke Ag Druckregeleinheit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072180A (en) * 1933-11-13 1937-03-02 Packard Motor Car Co Internal combustion engine
GB1087974A (en) * 1964-11-10 1967-10-18 Continental Aviat & Eng Corp Improvements in fuel systems for internal-combustion engines
JPS6060380A (ja) * 1983-09-14 1985-04-06 Hokkaido Suido Kizai Kk 水道用定圧弁
US4860856A (en) * 1988-06-28 1989-08-29 Esslinger Dwaine E Oil pressure adjustment device for engines
RU2194168C2 (ru) * 1997-12-23 2002-12-10 Открытое акционерное общество Холдинговая компания "Барнаултрансмаш" Система смазки двигателя внутреннего сгорания

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB593035A (en) * 1945-02-01 1947-10-07 Aspin Frank Metcalfe Improvements in or relating to lubrication systems of internal combustion engines
US4262775A (en) * 1979-05-07 1981-04-21 Ingersoll-Rand Company Oil supply means for a machine
JPS57173513A (en) * 1981-04-17 1982-10-25 Nippon Soken Inc Variable valve engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072180A (en) * 1933-11-13 1937-03-02 Packard Motor Car Co Internal combustion engine
GB1087974A (en) * 1964-11-10 1967-10-18 Continental Aviat & Eng Corp Improvements in fuel systems for internal-combustion engines
JPS6060380A (ja) * 1983-09-14 1985-04-06 Hokkaido Suido Kizai Kk 水道用定圧弁
US4860856A (en) * 1988-06-28 1989-08-29 Esslinger Dwaine E Oil pressure adjustment device for engines
RU2194168C2 (ru) * 1997-12-23 2002-12-10 Открытое акционерное общество Холдинговая компания "Барнаултрансмаш" Система смазки двигателя внутреннего сгорания

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 009, Nr. 194 (M-403), 10. August 1985 (1985-08-10) & JP 60 060380 A (HOTSUKAIDOU SUIDOU KIZAI KK), 6. April 1985 (1985-04-06) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024016372A1 (fr) * 2022-07-22 2024-01-25 中车戚墅堰机车有限公司 Nouvelle soupape de réglage d'huile de moteur

Also Published As

Publication number Publication date
ATE328193T1 (de) 2006-06-15
EP1420148B1 (fr) 2006-05-31
DE10253576A1 (de) 2004-05-27
DE50303555D1 (de) 2006-07-06
ES2263917T3 (es) 2006-12-16
EP1420148A3 (fr) 2005-06-01

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