CN100572792C - A kind of internal-combustion engine oil pump - Google Patents

A kind of internal-combustion engine oil pump Download PDF

Info

Publication number
CN100572792C
CN100572792C CNB2004100916527A CN200410091652A CN100572792C CN 100572792 C CN100572792 C CN 100572792C CN B2004100916527 A CNB2004100916527 A CN B2004100916527A CN 200410091652 A CN200410091652 A CN 200410091652A CN 100572792 C CN100572792 C CN 100572792C
Authority
CN
China
Prior art keywords
separate space
piston
barrier film
fuel pump
pump according
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.)
Expired - Fee Related
Application number
CNB2004100916527A
Other languages
Chinese (zh)
Other versions
CN1621677A (en
Inventor
马西莫·洛利
马切洛尼·克里斯蒂亚尼
保罗·帕尔斯夸利
塞西利亚·兰贝蒂
马西莫·马蒂奥利
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.)
Marelli Europe SpA
Original Assignee
Magneti Marelli Powertrain SpA
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
Priority claimed from ITBO20030712 external-priority patent/ITBO20030712A1/en
Priority claimed from ITBO20040141 external-priority patent/ITBO20040141A1/en
Application filed by Magneti Marelli Powertrain SpA filed Critical Magneti Marelli Powertrain SpA
Publication of CN1621677A publication Critical patent/CN1621677A/en
Application granted granted Critical
Publication of CN100572792C publication Critical patent/CN100572792C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06Pumps having fluid drive
    • F04B43/067Pumps having fluid drive the fluid being actuated directly by a piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0054Special features particularities of the flexible members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention discloses a kind of fuel of internal combustion engine pump, it comprises: the first variable volume separate space, and it has the input valve and derives valve; The pumping action device, it comprises second separate space that is suitable for holding fuel oil, be installed as the piston that slides in second separate space, can make the actuator that piston moves back and forth in this second separate space and be used for separating with leakage way not the isolator device of first and second separate spaces; Wherein piston has the surface, working end that limits second separate space, the isolator device comprises deformable barrier film, barrier film is suitable in use along with the to-and-fro motion of piston in second separate space, and be out of shape under the thrust that fuel oil applied in being contained in second separate space, to change the volume of first separate space; Be fixed to the core of barrier film with at least one strenthening member, described strenthening member is installed in second separate space and is set to and in use can contact with the wall that defines this second separate space; Wherein second separate space has a plurality of grooves as the flow through passage of strenthening member of oil.

Description

A kind of internal-combustion engine oil pump
Invention field
The present invention relates to a kind of internal-combustion engine oil pump.
More particularly the present invention relates to a kind of oil pump that is used for directly injecting oil burning installation,, will can too much at length not mention in being described below for the fuel oil among the present invention.
Background technique
In the part of the direct injection part of fuel oil, a kind of petrol pump of known use comprises a cylinder with predetermined longitudinal axis, being installed in the piston on the slide bar and making piston make the actuator of linear reciprocating motion in this cylinder in cylinder.
Piston comprises a surface, working end that becomes cross setting with above-mentioned axis, limit one together with cylinder and have the separate space that first variable volume holds gasoline, and set one together with cylinder and be substantially second separate space that fixed volume is held oil plant, on piston, a ring washer is set at last first separate space and second separate space are separated with sealing means.
Because piston must have identical with a cylinder substantially diameter, to reduce along the leakage of the gasoline and the oil plant of piston, main because those contaminant particles that are present in cylinder interior inevitably may cause the situation of piston obstruction in cylinder, above-mentioned existing the type petrol pump has some shortcomings.
The pump of above-mentioned known the type also has another shortcoming, and the existence of above-mentioned contaminant particles also causes the higher relatively wearing and tearing of ring washer.
U.S. Pat-5520523-A1 has disclosed a kind of membrane pump, this pump comprise one similar discoid, by the barrier film that elastic material is made, this barrier film remains between upper chamber and the lower chamber.In this membrane pump, barrier film in being installed in pump before for flat pattern, crooked and be installed in the pump along obturator; Therefore, edge driving force of putting on barrier film obturator direction acts on the barrier film always.Barrier film is out of shape along with the to-and-fro motion of piston, and when the piston arrives bottom dead center, the cylinder separate space is compressed under pressure, and under the servo force effect that acts on driving force on the barrier film obturator and servopump, barrier film is crushed on the obturator.
U.S. Pat-6071089-A1 has disclosed and a kind ofly has been provided with the pressure separate space in barrier film one side, be provided with the high-pressure and hydraulic diaphragm pump of deriving separate space at opposite side, this diaphragm pump has one to comprise a piston element, the piston assembly that moves reciprocatingly, this piston element is used for liquid is pressed in the pressure separate space, and the pressure separate space is connected with the pressure regulator that can keep fluid expection and derive pressure, in pressure regulator, piston element combines with the barrier film positioning means barrier film is maintained with respect to piston element on the position of an expectation, makes to guarantee that barrier film can fully stretch in the pump normal running.
B. P. GB-849557-A has disclosed a kind of hydraulic pressure driven membrane pump; A hydraulic pressure separate space is set to link to each other with a liquid memory by the valve that is fixed on the barrier film, has a part that communicates with separate space, and communicate with any part that links to each other with storage by valve, make too much liquid can derive or not enough can replenishing.Be applied to the side that barrier film has pump if unnecessary pressure takes place, the barrier film face is fixed on the surface of separate space.Pump chamber links to each other with input pipe by a pair of transfer valve, and links to each other with output duct by a delivery valve.Pump can comprise a plurality of barrier film separate spaces.
U.S. Pat-6554578-B1 relates to a kind of membrane pump with a control diaphragm position, and this barrier film will carry separate space to separate from mobile separate space.As substituting of the process control mechanism of recharging, a pressure transducer is arranged in the mobile separate space, and mobile separate space and a design are used for producing the recharge apparatus for evaluating of signal and link to each other, and signal conversion makes by valve that recharges of an operation circuit driving; Preferably, also have second sensor that is used for detecting stroke of piston, its signal is connected with the signal that transmits from pressure transducer.
Summary of the invention
The purpose of this invention is to provide a kind of energy and eliminate also energy internal-combustion engine oil pump easy, that implement economically of above-mentioned shortcoming.
According to the present invention, a kind of fuel of internal combustion engine pump is provided, this pump comprises: first a variable volume separate space that is suitable for holding fuel oil, this first variable volume separate space have an input valve and a derivation valve; Be used for changing the pumping action device of the described first variable volume separate space volume, described pumping action device comprises that second separate space that is suitable for holding fuel oil, one are installed as the piston that slides, can make the actuator that described piston moves back and forth and are used for separating with leakage way not the isolator device of described first variable volume separate space and described second separate space in this second separate space in described second separate space; Wherein said piston has a surface, working end that limits described second separate space, described isolator device comprises a deformable barrier film, barrier film is suitable in use along with the to-and-fro motion of described piston in described second separate space, and be out of shape under the thrust that fuel oil applied in being contained in described second separate space, to change the volume of the first variable volume separate space; Be fixed to the core of described barrier film with at least one strenthening member, described strenthening member is installed in described second separate space and is set to and in use can contact with the wall that defines this second separate space; Described fuel pump is characterised in that, described second separate space has a plurality of grooves as the flow through passage of described strenthening member of oil.
Description of drawings
The present invention describes with reference to the accompanying drawings as follows, and accompanying drawing shows infinite embodiment, wherein:
Fig. 1 is vertical summary sectional view of a preferred embodiment of oil pump of the present invention;
Fig. 2 is vertical summary sectional view of another kind of oil pump among Fig. 1;
Fig. 3 is a plane view detailed among Fig. 2.
Embodiment
In Fig. 1, one is used for gasoline and directly injects the oil pump integral body of type internal-combustion engine (not shown) by label 1 demonstration.
Oil pump 1 comprises a cylindrical body 2 with predetermined longitudinal axis 3, cylindrical body 2 comprise again one with axle 3 coaxial first plate objects 4, oil pump 1 is limited on axis with axle 3 rectangular planes 5,6 by two, and has a cylindrical cavity 7, chamber 7 outside opening on the position of plate object 6 is sealed by second plate object 8 that contacts with surperficial 6 and be fixed on the plate object 4.
Plate object 8 is limited with axle 3 rectangular planes 9,10 in the axial direction by two, surface 9 is set up to contact with surface 6 and have one to be run through plate object 8, axially goes up the cylindrical cavity 11 coaxial with axle 3, and chamber 11 is outside opening on the position on surface 9 and surface 10.
Chamber 7 and 11 isolates mutually by a deformable barrier film 12 of being made by stainless steel, the periphery of barrier film 12 is welded between plate object 4 and 8 and limits the separate space 13 of variable volume with chamber 7, and separate space 13 is suitable for the input ball valve 14 and the output ball valve 15 that hold gasoline and have known type.
Chamber 11 comprises a locational expansion 16 that is placed in towards barrier film 12, with a constriction 17 that is meshed with piston 18 with slide type, piston 18 have on an edge and the axle 3 rectangular directions extend, the surface, working end 19 of limited piston 18 in the axial direction, surface, working end 19 defines a separate space 20 that has fixing volume substantially, is suitable for holding engine (not shown) oil plant with chamber 11 and barrier film 12.
Separate space 20 has the input valve 21 of a known type, input valve 21 is fit to separate space 20 some oil plants of supply, these oil the amount on substantially and by between part 17 and piston 18, extract in the present separate space 20 oil phase with, and the oil mass that therefore can keep in the separate space 20 is constant, when the oil pressure numerical value in the separate space 20 equaled a predetermined value substantially, maximum pressure valve 22 can be positioned at open position.
Piston 18 can move to carry out reciprocal linear motion in the promotion lower edge of actuator part 17, this linear motion comprises an outside stroke, barrier film 12 pumping action position (by the demonstration of continuous lines in the accompanying drawing) from operation moves to stop position (being represented by the dotted line in the accompanying drawing) and separate space 13 volumes during this period increases and makes input valve 14 open, this linear motion also comprises a return stroke, and barrier film 12 makes output valve 15 open from the volume reducing that stop position moves to pumping action position the operation and separate space 13 during this period.
Device 23 comprise one be enclosed within on the piston 18 and 3 coaxial with axle, be arranged on the spring 24 of outside thrust being provided between plate object 8 and the piston 18 piston 18, install in a spiral manner, around its cam 25 perpendicular to the longitudinal axis 26 rotations of axle 3, cam 25 cooperates with tappet roller 27 provides return stroke for this piston 18, and tappet roller 27 is coupled with the mode and the piston 18 of rotation and axial restraint.
Barrier film 12, separate space 20, piston 18 and actuator 23 form a pumping action device 28, and this device can make barrier film 12 distortion with the oil plant in the separate space 20 and therefore change the volume of separate space 13.The distortion of barrier film 12 makes surface and the surface ratios between 19 of barrier film 12 equal five at least optionally to control by barrier film 12 and piston 18 are set.
Valve 15 is opened in the return stroke of piston 18, therefore, carry out Selective Control by flow regulator 29 in gasoline quantity each operation cycle at pump 1 of valve 15 supplies, this controlling device comprises an electromagnetic actuators 30 that is installed in valve 14 places.Actuator 30 comprises that is parallel to the take-off lever 31 that axle 3 extends in valve 14, and take-off lever 31 is installed in the mode of sliding and is made and can move between an operating position (showing with dotted line in the accompanying drawing) and a stop position (showing with continuous lines in the accompanying drawing), take-off lever 31 is arranged so that valve 14 opens on described operating position, and take-off lever 31 is arranged so that valve 14 closes on described stop position.
Make it just open having only during the return stroke of piston 18 when valve 14 is closed because valve 15 is calibrated, the actuating of actuator 30 makes that optionally opening of control valve 15 becomes possibility.
The running of pump 1 can easily be derived from top description, and need not to be further explained.
Variation shown in Figure 2 relates to pump 32, pump 32 is with pump 1 difference, input ball valve 14 is transfused to valve 33 and replaces, transfer valve 33 comprises a plate object 34, plate object 34 and supplies gasoline meet at right angles to the longitudinal axis 35 of the conduit 36 of separate space 13 and install and have a plurality of through plate object 34 and be parallel to a supply orifice 37 of spools 35, the deformable thin plate 38 that fixes with an outer rim and plate object 34, thin plate 38 is arranged on the position of close pore 37 (Fig. 2) usually, outwards move during motion at piston 18, the mobile gasoline that makes from the operating position in these holes 37 to the open position (not shown) enters into separate space 13.
Pump 32 also is with the difference of pump 1, barrier film 12 comprises that is clipped in two cores 39 between the strenthening member 40 that is roughly cup-shaped, strenthening member 40 one of them (being designated 40b) is placed in the separate space 13, and another (being designated 40a) is placed in the separate space 20.
As shown in Figure 2, parts 40a is moulded to make and contacts with the wall 41 that defines separate space 20 during the outstroke of piston 18, thereby the distortion of control barrier film 12, and also have a plurality of oil radial grooves 42 by parts 40a when parts 40a contacts with wall 41 that allow.
According to the variation that does not have to show, groove 42 is replaced by a plurality of groove supplies that are formed on the wall 41.
Pump 32 and pump 1 last difference is, input valve 21, pressure maximum valve 22 and electromagnetic actuators are installed in electromagnetic valve 43 in the chamber 44, single by one and replace, chamber 44 is arranged in the plate object 8, has the longitudinal axis 45 and a process perpendicular to axle 3 and is connected with separate space 20 through the hole 46 that this plate object 8 forms.
Valve 43 comprises an outer tubular sheath 47 that is roughly cup-shaped, outer tubular sheath 47 coaxially is contained in the chamber 44 with axle 45, and have a plurality of threaded shaft 45 equally distributed radial holes 48 and make oil plant to be supplied to enter in this sheath 47, also have an axial bore 49.
Sheath 47 is axially closed by an electromagnet 50, and holds a spherical gate 51 that is coupled with slide type and sheath 47, and spherical gate 51 has the spheroid 52 of a plugging hole 49.Under the thrust that is placed on the spring 53 between electromagnet 50 and the gate 51, gate 51 and corresponding spheroid 52 generally are on the position (Fig. 2) of closing closed pore 49, the elastic force that overcomes spring 53 under electromagnet 50 effects moves on the position (not shown) of opening hole 49, in this position, oil plant is supplied to hole 49 by the groove supply 54 that a plurality ofly is formed on spheroid 52 outer surfaces, is parallel to axle 45.
In the initial conditions that separate space 20 is filled, electromagnet 50 activated mobile gate 51 and spheroid 52 to open on the position in hole 49 to them, makes the oil of the primary quantity that supply is predetermined in hole 46, thereby enters in the separate space 20.Being supplied the initial oil mass that enters in the separate space 20 can remain unchanged, and in use, is supplied to separate space 20 some oil plants by optionally opening valve 43, quantitatively equates with the oil plant of deviating from separate space 20 owing to the seepage between part 17 and the piston 18 substantially.
From foregoing, can notice, in the return stroke of piston 18, on barrier film 12, exert pressure and therefore barrier film 12 is displaced to its operating pumps working position from its stop position, be that opening of output valve 15 depended on the oil mass of holding in the separate space 20, and optionally control by valve 43.
At oil supply in the circuit of separate space 20, the configuration of valve 43 make might suck gasoline in the separate space 13 directly be fed to output valve 15, to prevent owing to be inhaled into the energy loss that backflow is caused of the gasoline in the separate space 13 by input valve 14, use electromagnetic actuators 30 in contrast, this energy loss can occur.
Spring 53 also is calibrated, make and gate 51 to be pushed into the position of closing closed pore 49 with a power, when the oil pressure value in the separate space 20 equaled a predetermined value substantially, this power was under any circumstance less than by the rightabout power on the gate that oil plant is applied to 51 that is contained in separate space 20 and the hole 46.By this way, oil plant releases by hole 48, thereby avoids barrier film 12 to damage.

Claims (12)

1. fuel of internal combustion engine pump; This pump comprises:
A first variable volume separate space (13) that is suitable for holding fuel oil, this first variable volume separate space (13) have an input valve (33) and a derivation valve (15);
Be used for changing the pumping action device (28) of described first variable volume separate space (13) volume, described pumping action device (28) comprises that second separate space (20) that is suitable for holding fuel oil, one are installed as the piston (18) that slides, can make the actuator (23) that described piston (18) moves back and forth and are used for separating with leakage way not the isolator device of described first variable volume separate space (13) and described second separate space (20) in this second separate space (20) in described second separate space (20); Wherein said piston (18) has a surface, working end (19) that limits described second separate space (20), described isolator device comprises a deformable barrier film (12), barrier film (12) is suitable in use along with the to-and-fro motion of described piston (18) in described second separate space (20), and be out of shape under the thrust that fuel oil applied in being contained in described second separate space (20), to change the volume of the described first variable volume separate space (13); With
At least one strenthening member (40a, 40b) be fixed to the core (39) of described barrier film (12), described strenthening member (40a) is installed in described second separate space (20) and is set to and in use can contact with the wall (41) that defines this second separate space (20);
Described fuel pump is characterised in that, described second separate space (20) has a plurality of grooves (42) as oil flow through described strenthening member (40a, passage 40b).
2. fuel pump according to claim 1, the ratio between the surface, working end (19) of the surface of wherein said barrier film (12) and described piston (18) equals 5 at least.
3. fuel pump according to claim 1, wherein said barrier film (12) are steel barrier films.
4. fuel pump according to claim 1, the to-and-fro motion of wherein said piston (18) comprises an outstroke and a return stroke, and described actuator (23) comprises first pushing device that makes described piston (18) do outstroke and makes described piston (18) make second pushing device of return stroke.
5. fuel pump according to claim 4, wherein said first pushing device comprises elastic pushing device.
6. fuel pump according to claim 4, wherein said second pushing device comprise that a cam and one are installed in the tappet roller (27) that described piston (18) is gone up and matched with described cam (25).
7. fuel pump according to claim 1, the to-and-fro motion of wherein said piston (18) comprises that an outstroke is with the volume that increases the described first variable volume separate space (13) and control opening of described input valve (33), this to-and-fro motion comprises that also a return stroke with the volume that reduces the described first variable volume separate space (13) and described derivation valve (15) is opened, is provided with flow regulator for optionally control opening of described derivation valve (15) in return stroke.
8. fuel pump according to claim 7, wherein said flow regulator comprise an electromagnetic valve (43) of optionally controlling fuel feeding in described second separate space (20).
9. fuel pump according to claim 8, wherein said electromagnetic valve (43) comprise a gate (51), are suitable for this gate (51) maintained and close locational the 3rd pushing device of described electromagnetic valve (43) (53) and be suitable for described gate (51) is moved to the 4th pushing device (50) on the open position from the closed position of described electromagnetic valve (43) usually.
10. fuel pump according to claim 9, wherein said the 4th pushing device (50) are electromagnets.
11. fuel pump according to claim 9, wherein said the 3rd pushing device (53) is calibrated with a power described gate (51) is maintained closed position, when the oil pressure value in described second separate space (20) equals a predetermined value, this power under any circumstance less than by be contained in oil in described second separate space (20) the rightabout power on the described gate that is applied to (51).
12. having a plurality of described walls (41) that are arranged on, fuel pump according to claim 1, wherein said second separate space (20) go up the groove (42) that is used as oily passage.
CNB2004100916527A 2003-11-25 2004-11-24 A kind of internal-combustion engine oil pump Expired - Fee Related CN100572792C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITBO20030712 ITBO20030712A1 (en) 2003-11-25 2003-11-25 FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE.
ITBO2003A000712 2003-11-25
ITBO2004A000141 2004-03-12
ITBO20040141 ITBO20040141A1 (en) 2004-03-12 2004-03-12 FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
CN1621677A CN1621677A (en) 2005-06-01
CN100572792C true CN100572792C (en) 2009-12-23

Family

ID=34466446

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100916527A Expired - Fee Related CN100572792C (en) 2003-11-25 2004-11-24 A kind of internal-combustion engine oil pump

Country Status (9)

Country Link
US (1) US20050207912A1 (en)
EP (1) EP1536137B1 (en)
CN (1) CN100572792C (en)
AT (1) ATE343725T1 (en)
BR (1) BRPI0405310A (en)
DE (1) DE602004002920T2 (en)
ES (1) ES2273166T3 (en)
PL (1) PL1536137T3 (en)
PT (1) PT1536137E (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057688A1 (en) * 2004-11-30 2006-06-01 Robert Bosch Gmbh Diaphragm pump motor vehicle, has diaphragm with metallic diaphragm body which is formed from corrosion-resistant steel, and lifter pin connected with body by welding for actuating diaphragm
US7677155B2 (en) * 2006-01-13 2010-03-16 Gm Global Technology Operations, Inc. Statically sealed high pressure fuel pump and method
US7861682B2 (en) * 2007-10-25 2011-01-04 Ford Global Technologies, Llc Systems and methods for managing camshaft torsional loading
GB2470348B (en) * 2009-04-29 2011-06-08 Flotronic Pumps Ltd Double-diaphragm pump with unidirectional valve arrangement
WO2011040912A1 (en) 2009-09-30 2011-04-07 Bombardier Recreational Products Inc. Electronic oil pump
CN102278587B (en) * 2011-07-07 2014-10-08 北京中清能发动机技术有限公司 Lubricating oil pump used for connecting rod-free reciprocating-rotating movement conversion mechanism, bracket, lubricating oil pump body and device
CN102536568A (en) * 2012-02-08 2012-07-04 武汉科技大学 In-line diaphragm-type pressurizing pump for dimethyl-ether engine
JP5871742B2 (en) * 2012-07-30 2016-03-01 本田技研工業株式会社 Fuel supply device for internal combustion engine
ITRM20130459A1 (en) * 2013-08-05 2015-02-06 Seko Spa SELF-BALANCING PUMP WITH SPRING RETURN, IN PARTICULAR SELF-BALANCING DOSING PUMP WITH SPRING RETURN
CN104533777A (en) * 2014-12-30 2015-04-22 米顿罗工业设备(上海)有限公司 Metallic diaphragm breakage detection structure
DE102016015110A1 (en) * 2016-12-20 2018-06-21 Fresenius Medical Care Deutschland Gmbh Positive displacement pump for medical fluids and blood treatment device with a positive displacement pump for medical fluids and method for controlling a positive displacement pump for medical fluids
WO2021072729A1 (en) * 2019-10-18 2021-04-22 Healtell (Guangzhou) Medical Technology Co., Ltd. Microfluidic chip pumps and methods thereof
CN112761842A (en) * 2020-12-29 2021-05-07 余姚市舒春机械有限公司 Integrated fuel pump of electronic injection diesel engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB849557A (en) * 1955-09-22 1960-09-28 Reiners Walter Improvements in or relating to diaphragm pumps

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791535A (en) * 1988-02-11 1988-12-13 Sclafani Vincent J Security device for fog lights
JPH062664A (en) * 1992-06-22 1994-01-11 Nippon Soken Inc Diaphragm type pump
US6071089A (en) * 1998-02-20 2000-06-06 General Motors Corporation Hydraulic diaphragm pump
DE19826610A1 (en) * 1998-06-16 1999-12-23 Bran & Luebbe Diaphragm pump and device for controlling the same
JP4627603B2 (en) * 2001-03-15 2011-02-09 日立オートモティブシステムズ株式会社 Fuel supply device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB849557A (en) * 1955-09-22 1960-09-28 Reiners Walter Improvements in or relating to diaphragm pumps

Also Published As

Publication number Publication date
PL1536137T3 (en) 2007-01-31
EP1536137A1 (en) 2005-06-01
CN1621677A (en) 2005-06-01
ES2273166T3 (en) 2007-05-01
PT1536137E (en) 2007-01-31
BRPI0405310A (en) 2005-07-19
EP1536137B1 (en) 2006-10-25
DE602004002920D1 (en) 2006-12-07
US20050207912A1 (en) 2005-09-22
DE602004002920T2 (en) 2007-04-26
ATE343725T1 (en) 2006-11-15

Similar Documents

Publication Publication Date Title
CN100572792C (en) A kind of internal-combustion engine oil pump
RU2007143520A (en) DIAGRAM PUMP AND METHOD FOR REGULATING LIQUID PRESSURE IN A DIAGRAM PUMP
CN101000026B (en) Device and method for statically seal of high pressure fuel pump
CN101484686B (en) Fuel injector control system
MXPA02002198A (en) Fuel injector assembly and internal combustion engine including same.
US7328688B2 (en) Fluid pumping apparatus, system, and method
JP4589382B2 (en) High pressure pump for fuel injection device of internal combustion engine
CN101809279B (en) Variable displacement pump with an anti-stiction device
CN113167201A (en) Inlet control valve for high pressure fuel pump
EP0391507B1 (en) Valve system of internal combustion engine
GB2420600A (en) Variable discharge fuel pump
JP2002322959A (en) Liquid control valve
CN114127409B (en) Electromagnetic suction valve and high-pressure fuel supply pump
CN107100724B (en) Opposed type hydraulic free-piston engine and its driving method
KR20000069118A (en) Liquid control valve
EP1532348B1 (en) A device and a method for the generation of pressure pulses
CN102713172A (en) Opposed piston engine with gas exchange control by means of hydrostatically moved sliding sleeves
CN104454066A (en) Continuous and variable lift driver
JP2018513312A (en) Actuators for axial displacement of objects
US10544770B2 (en) Mecha-hydraulic actuated inlet control valve
US6568360B2 (en) Electrohydraulic device for operating the valves of a combustion engine
US9091238B2 (en) Systems and methods for providing motion amplification and compensation by fluid displacement
CN103270289A (en) Pressure control arrangement of a fuel injection system having a valve which is arranged on the pressure side of a pump
US20030091445A1 (en) Variable-flow high pressure pump
CN220911073U (en) Oiling system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: Italy corbetta

Patentee after: Magneti Marelli Powertrain SPA

Address before: Italy Borati

Patentee before: Magneti Marelli Powertrain SPA

C56 Change in the name or address of the patentee

Owner name: MAGNETI-MARELLI DYNAMICAL SYSTEM COMPANY

Free format text: FORMER NAME: MAGNETI MARELLI POWERTRAIN SPA

CP01 Change in the name or title of a patent holder

Address after: Italy corbetta

Patentee after: Magneti Marelli Powertrain S.p.a

Address before: Italy corbetta

Patentee before: Magneti Marelli Powertrain SPA

CP01 Change in the name or title of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091223

Termination date: 20141124

EXPY Termination of patent right or utility model