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CN101135285A - Piston pump with anti-deposit function - Google Patents

Piston pump with anti-deposit function Download PDF

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Publication number
CN101135285A
CN101135285A CNA2007101483108A CN200710148310A CN101135285A CN 101135285 A CN101135285 A CN 101135285A CN A2007101483108 A CNA2007101483108 A CN A2007101483108A CN 200710148310 A CN200710148310 A CN 200710148310A CN 101135285 A CN101135285 A CN 101135285A
Authority
CN
China
Prior art keywords
pump
piston
fuel injection
piston pump
cylinder
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.)
Pending
Application number
CNA2007101483108A
Other languages
Chinese (zh)
Inventor
T·格里茨科
S·哈斯
T·哈曼
W·考夫曼
L·梅尔
H·沙尔
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.)
MAN Energy Solutions SE
Original Assignee
MAN Diesel SE
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 MAN Diesel SE filed Critical MAN Diesel SE
Publication of CN101135285A publication Critical patent/CN101135285A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/18—Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A piston pump for a common rail fuel injection device of an internal combustion engine. The piston pump has a pump housing (1) in which at least one pump cylinder (12) is formed. The pump piston (2) is arranged in the pump cylinder so as to be movable in the axial direction. The lubricant supplied through the lubricant supply opening (8) is supplied in the axial direction via a recess (9) in the pump piston, so that a flushing of the pump piston with lubricant is achieved. In this way, deposits in the gap between the pump cylinder (12) and the pump piston (2) are effectively avoided.

Description

Reciprocating pump with sediment-proof function
Technical field
The present invention relates to a kind of lubricated reciprocating pump, be used in particular in the common rail fuel injection system of the internal-combustion engine of engine of boat and ship, using.
Background technique
The high-pressure service pump that uses in common rail system is open from prior art.This pump is usually directed to reciprocating pump Stirling engine (Hubverdr_ngermaschine) in other words, and their salient point is particularly in leakage loss is lower owing to the slot seal between pumping cylinder and pump piston.By cam drive for example cam driving gear produce the pump piston motion in other words on the piston rod at pump piston.
When using by land in the traffic tool, be positive fully to the evaluation of the lower leakage loss between pumping cylinder and pump piston by the disclosed pump of prior art.And if with heavy oil (HFO) operation of combustion engine, for example be exactly this situation in the engine of boat and ship manufacturing, producing sediments by the fuel that remains to be aspirated on the guide surface between pumping cylinder and the pump piston so as leaked fuel crawling between pumping cylinder and pump piston.Heavy oil forms sediments and is called japanning (Verlackung) on guide surface.
Summary of the invention
Therefore task of the present invention provides a kind of reciprocating pump, and this reciprocating pump is avoided causing japanning by employed fuel between pumping cylinder and pump piston.
This task is resolved by independent claims of the present invention.Dependent claims is a preferred design of the present invention.
By the invention provides a kind of reciprocating pump, this reciprocating pump has pump case, at least one pumping cylinder of structure in this pump case.Pump piston leads in pumping cylinder vertically back and forth.The dish or the cam of cam disk such as eccentric support drive pump piston in other words by cam drive.Form a cavity between pump piston and pumping cylinder, this cavity is exactly a so-called active chamber stroke capacity in other words.Can relate to by pump of the present invention and to have a radial piston pump or an axial piston pump with upper piston.At least one depression is set between pumping cylinder and pump piston, and conveyance fluid vertically in this depression is preferably carried lubricant oil.
By the depression can that is to say vertically along the moving direction guiding fuel of pump piston is being set between pumping cylinder and the pump piston, wash guide surface guiding area in other words between pumping cylinder and pump piston with for example lubricant oil in the middle cavity between pumping cylinder wall and the pump piston.By using the oil flushing guide surface, can in the zone of guide surface, sediments not occur, and avoid japanning effectively.Lubricant oil preferably is distributed on the inwall of pumping cylinder by depression and the stroke capacity of then leaving reciprocating pump flows out to sucker rod.By the present invention, this reciprocating pump is applicable to all fuel, and these fuel tend to be deposited in the slit between pump piston and the pumping cylinder.That is to say and be equally applicable to the alternative fuel reciprocating pump of the road transport that moves of rape oil for example.
By a kind of design proposal of the present invention, depression is set in pump piston, thereby realizes alap manufacture cost.Although in pump piston, be provided with depression, also can be implemented in the combination of depression and depression in pumping cylinder in the pump piston by the present invention by this design proposal.Depression can realize that with different forms these forms also can make up on piston.For example can be along pump piston pod, translot or spiral slot vertically be set.These grooves also can be configured to discontinuous.Can construct the conveying shallow bid by means of the recess that is configured on the pump piston in addition, this carries shallow bid along the guide surface transfer the fuel.
Description of drawings
By means of accompanying drawing the present invention is further explained.
Accompanying drawing illustrates:
Fig. 1 is the schematic representation by the reciprocating pump of embodiment of the present invention.
Embodiment
Fig. 1 shows a kind of mode of execution by reciprocating pump of the present invention, and wherein in this embodiment, discontinuous spiral groove is configured on the side of pump piston 2 as depression 9.Cam drive 11 by cam-like that is to say in pumping cylinder 12 pump piston 2 and moves up and down in pump case 1, this cam drive 11 here is an elliptic cam.At this, pumping cylinder 12 and pump piston 2 have constituted the stroke capacity 13 in the pump case 1.By first tap hole 4 and second tap hole 5 fuel is discharged from be configured to the first annular pressure relief groove 3 and second pressure relief groove in pumping cylinder.Fuel leak amount for this reason preferably has the pressure in 1 Palestine and Israel.And the pressure of this fuel leak amount must be at least greater than the pressure in tap hole 4 and 5.
By lubricant oil sprocket hole 8 with lubricant oil supplying lubricating oil circular groove 7.The zone line that the lubricant oil of being carried arrives between pump piston 2 and the pumping cylinder 12 by depression 9.Unnecessary lubricant oil flows out towards the direction of the cam drive 11 of cam-like.
Pressure relief groove 3 and 6 preferable configuration that is to say in the end in the cylinder side of pump piston 2 and pump case 1 constitutes between the pump piston end and lubricant oil annular groove 7 of stroke capacity 13.
Reference numerals list
1 pump case
2 pump pistons
3 pressure relief grooves
4 tap holes
5 tap holes
6 pressure relief grooves
7 lubricant oil annular groove
8 lubricant oil sprocket holes
9 depressions
10 delivery lines
11 cam driving gears
12 pumping cylinders
13 stroke capacitys.

Claims (11)

1.用于内燃机燃料喷射装置的活塞泵，该活塞泵用于在具有共同的高压管路的系统中输送燃料，该活塞泵具有泵壳体(1)，在该泵壳体中构造至少一个泵缸(12)，在该泵缸中设有泵活塞(2)，该泵活塞可沿着导向区域在轴向方向上运动并且在泵活塞(2)的在缸侧的端部上与泵缸(12)构成冲程容积(13)，其特征在于，设置穿过泵壳体(1)的输送孔(8)用于将流体导入设置在泵缸(12)上的环形槽(7)中，并且在泵缸(12)和泵活塞(2)之间的导向区域中设置至少一个凹穴(9)，在该凹穴中沿轴向输送流体。1. Piston pump for a fuel injection system for an internal combustion engine for delivering fuel in a system with a common high-pressure line, the piston pump having a pump housing (1) in which at least one A pump cylinder (12) in which a pump piston (2) is arranged, which is movable in the axial direction along a guide area and which is connected to the pump at the end of the pump piston (2) on the cylinder side The cylinder (12) forms the stroke volume (13) and is characterized in that a delivery hole (8) is provided through the pump housing (1) for the introduction of fluid into an annular groove (7) provided on the pump cylinder (12) , and at least one recess (9) is provided in the guide region between the pump cylinder (12) and the pump piston (2), in which the fluid is conveyed axially. 2.按权利要求1所述的用于燃料喷射装置的活塞泵，其特征在于，所述流体涉及润滑油，该润滑油基本上沿从冲程容积(13)引导出去的方向进行轴向输送。2. Piston pump for a fuel injection system according to claim 1, characterized in that the fluid is lubricating oil which is conveyed axially essentially in a direction leading away from the stroke volume (13). 3.按权利要求1或2中任一项所述的用于燃料喷射装置的活塞泵，其特征在于，通过至少一个设置在泵缸(12)中的环形卸压槽(3、6)排出燃料泄漏量，所述卸压槽与穿过泵壳体(1)的排出孔(4、5)相连。3. Piston pump for fuel injection systems according to any one of claims 1 or 2, characterized in that the discharge is via at least one annular relief groove (3, 6) arranged in the pump cylinder (12) For fuel leakage, the pressure relief grooves are connected to discharge holes (4, 5) through the pump housing (1). 4.按权利要求3所述的用于燃料喷射装置的活塞泵，其特征在于，在所述环形槽(7)和冲程容积(13)之间设置至少一个卸压槽(3、6)。4. Piston pump for a fuel injection system according to claim 3, characterized in that at least one pressure relief groove (3, 6) is arranged between the annular groove (7) and the stroke volume (13). 5.按上述权利要求中任一项所述的用于燃料喷射装置的活塞泵，其特征在于，在所述泵活塞(2)和/或泵缸(12)中设置所述凹穴(9)。5. The piston pump for a fuel injection system according to claim 1, characterized in that the recess (9) is arranged in the pump piston (2) and/or in the pump cylinder (12) ). 6.按权利要求5所述的用于燃料喷射装置的活塞泵，其特征在于，所述凹穴(9)至少部分地以纵槽的形式进行设置。6. Piston pump for a fuel injection system according to claim 5, characterized in that the recess (9) is at least partially arranged in the form of a longitudinal groove. 7.按权利要求5或6所述的用于燃料喷射装置的活塞泵，其特征在于，所述凹穴(9)至少部分地以凹槽的形式沿圆周方向进行设置。7. Piston pump for a fuel injection system according to claim 5 or 6, characterized in that the recesses (9) are arranged at least partially in the form of grooves in the circumferential direction. 8.按权利要求5、6或7所述的用于燃料喷射装置的活塞泵，其特征在于，所述凹穴(9)至少部分地以螺旋形槽和/或不连续的螺旋形槽的形式进行设置。8. Piston pump for a fuel injection device according to claim 5, 6 or 7, characterized in that the recesses (9) are at least partially formed with helical grooves and/or discontinuous helical grooves form to set. 9.按上述权利要求中任一项所述的用于燃料喷射装置的活塞泵，其特征在于，所述活塞泵涉及在高压范围中使用的径向活塞泵或轴向活塞泵。9. Piston pump for a fuel injection system according to claim 1, characterized in that the piston pump is a radial piston pump or an axial piston pump used in the high-pressure range. 10.按上述权利要求中任一项所述的用于燃料喷射装置的活塞泵，其特征在于，所述内燃机涉及用重油运行的船舶发动机。10. Piston pump for a fuel injection system according to claim 1, characterized in that the internal combustion engine is a marine engine operating on heavy fuel oil. 11.具有按权利要求1到10中任一项所述的活塞泵的内燃机。11. Internal combustion engine with a piston pump as claimed in any one of claims 1 to 10.
CNA2007101483108A 2006-08-29 2007-08-29 Piston pump with anti-deposit function Pending CN101135285A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006040468.8 2006-08-29
DE102006040468A DE102006040468A1 (en) 2006-08-29 2006-08-29 Lubricating piston pump for fuel injection device, particularly for application in common rail fuel injection device of internal combustion engine, pump housing in which pump cylinder is formed, and recess is provided in guiding area

Publications (1)

Publication Number Publication Date
CN101135285A true CN101135285A (en) 2008-03-05

Family

ID=38212333

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101483108A Pending CN101135285A (en) 2006-08-29 2007-08-29 Piston pump with anti-deposit function

Country Status (5)

Country Link
JP (1) JP2008057527A (en)
KR (1) KR101455857B1 (en)
CN (1) CN101135285A (en)
DE (1) DE102006040468A1 (en)
FI (1) FI122862B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012223334A1 (en) * 2012-12-17 2014-06-18 Robert Bosch Gmbh Piston-cylinder unit
DE102014010718B4 (en) * 2014-07-19 2020-03-19 Woodward L'orange Gmbh Piston pump for a fuel injection system
CN110645129B (en) * 2019-11-08 2024-10-22 重庆红江机械有限责任公司 Marine low-speed electromechanical control monomer type high-pressure oil pump
JP7313782B2 (en) * 2020-02-28 2023-07-25 株式会社吉野工業所 Plunger pump and liquid blow molding device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123492A (en) * 1982-07-08 1984-02-01 Lucas Ind Plc Fuel injection pump
JPS59221459A (en) * 1983-05-28 1984-12-13 Mitsubishi Heavy Ind Ltd Fuel injection pump
DD264259A1 (en) * 1987-08-31 1989-01-25 Aken Einspritzgeraetewerk FUEL INJECTION PUMP FOR A PISTON PISTON ENGINE
DE4030951B4 (en) * 1990-09-29 2004-03-18 Robert Bosch Gmbh Heavy oil fuel injector for injection internal combustion engines
DE10032577A1 (en) * 2000-07-05 2002-01-24 Bosch Gmbh Robert Radial piston pump
KR100773437B1 (en) * 2001-02-26 2007-11-05 베르트질레 슈바이츠 악티엔게젤샤프트 A high pressure piston in cylinder unit
JP4013199B2 (en) * 2003-05-16 2007-11-28 ボッシュ株式会社 Fuel injection pump

Also Published As

Publication number Publication date
KR20080020452A (en) 2008-03-05
DE102006040468A1 (en) 2008-03-06
JP2008057527A (en) 2008-03-13
FI20070476A0 (en) 2007-06-15
KR101455857B1 (en) 2014-11-03
FI122862B (en) 2012-08-15
FI20070476L (en) 2008-03-01

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Application publication date: 20080305