CN101956637A - Fuel supply apparatus for internal combustion engine - Google Patents

Fuel supply apparatus for internal combustion engine Download PDF

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Publication number
CN101956637A
CN101956637A CN2010102314062A CN201010231406A CN101956637A CN 101956637 A CN101956637 A CN 101956637A CN 2010102314062 A CN2010102314062 A CN 2010102314062A CN 201010231406 A CN201010231406 A CN 201010231406A CN 101956637 A CN101956637 A CN 101956637A
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CN
China
Prior art keywords
valve
pressure
seat
pump
fuel
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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
CN2010102314062A
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Chinese (zh)
Inventor
T·哈曼
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MAN Energy Solutions SE
Original Assignee
MAN Diesel SE
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Filing date
Publication date
Application filed by MAN Diesel SE filed Critical MAN Diesel SE
Publication of CN101956637A publication Critical patent/CN101956637A/en
Pending legal-status Critical Current

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    • 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
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • 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
    • F02M59/46—Valves
    • F02M59/464—Inlet valves of the check valve type
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1087—Valve seats

Abstract

The invention relates to a fuel supply device, namely a common rail fuel supply device, of an internal combustion engine, having a low-pressure region, having a pump arrangement comprising at least one high-pressure pump (1) for delivering fuel from the low-pressure region into the high-pressure region, wherein a pressure storage system which is continuously under high pressure and has at least one storage unit is arranged in the high-pressure region between the pump arrangement and an injector which is associated with a cylinder, and wherein each high-pressure pump (1) of the pump arrangement is associated in each case with a suction valve (3) by means of which fuel can be sucked from the low-pressure region into a pump chamber (2) of the respective high-pressure pump, and with a delivery valve (4) by means of which fuel can be delivered from the pump chamber (2) of the respective high-pressure pump in the direction of the pressure storage system. According to the invention, the valve seat (8) of the suction valve (3) and/or the valve seat (10) of the delivery valve (4) of each high-pressure pump (1) is formed by an exchangeable seat insert (11, 12).

Description

The fuel facility of internal-combustion engine
Technical field
The present invention relates to a kind of fuel supply device of internal-combustion engine of the preamble according to claim 1, i.e. the common rail fuel supply equipment.
Background technique
File DE 10 2,004 060 003 A1 disclose a kind of internal-combustion engine that has a plurality of cylinders, promptly utilize the marine diesel oil internal-combustion engine of heavy oil operation, and wherein, each cylinder sparger of rail fuel facility together is associated.Can inject fuel into by sparger in each in the cylinder of internal-combustion engine.Common rail fuel supply equipment according to file DE 10 2,004 060 003 A1 comprises the pump-unit with a plurality of high-pressure service pumps, to be used for that fuel is transported to the high-pressure area from the area of low pressure of common rail fuel supply equipment, wherein, in the high-pressure area, be provided with the pressure storage system (Druckspeichersystem) that continues to be under the high pressure between pump-unit and the sparger.According to file DE 10 2,004 060 003 A1, this pressure storage system (being also referred to as common rail system) that continues to be under the high pressure has a plurality of storage unit, and is connected with pump-unit by the high-pressure fuel line that continues equally to be under the high pressure.In addition, this pressure storage system is connected with sparger by depending on the high-pressure fuel line that injection cycle (Einspritztakt) intermittence is under the high pressure.In common rail fuel supply equipment according to file DE 10 2,004 060 003 A1, each high-pressure service pump is associated with a suction valve and a delivery valve respectively, wherein, fuel can be drawn into the pump chamber of each high-pressure service pump from the area of low pressure by each suction valve, and wherein, can be from the pump chamber of each high-pressure service pump at transfer the fuel on the direction of pressure storage system by delivery valve.
The suction valve of each high-pressure service pump and delivery valve have respectively and the coefficient valve body of valve seat, wherein, the suction valve of each high-pressure service pump and the valve seat of delivery valve can by the pumping cylinder of each high-pressure service pump or can by each high-pressure service pump with the coefficient valve load-bearing member of pumping cylinder
Figure BSA00000197633800011
Form.Valve seat is taking up wear in running, so that when the prooving of valve seat, must change the valve load-bearing member and/or the pumping cylinder of each high-pressure service pump.This is a high flow rate and expensive.
Summary of the invention
Based on this, problem of the present invention is, realizes a kind of novel motor fuel supply equipment, promptly improved common rail fuel supply equipment.
This problem solves by the fuel facility according to claim 1.According to the present invention, the valve seat of the suction valve of each high-pressure service pump and/or the valve seat of delivery valve are formed by removable seat inserting member (Sitzeinsatz).
In fuel facility according to the present invention, the suction valve of high-pressure service pump and/or the valve seat of delivery valve are provided by the removable seat inserting member that is configured to individual components.So, when these inserting member wearing and tearing, can less consumption change this inserting member.Do not need to change the pumping cylinder or the valve load-bearing member of high-pressure service pump.Can improve the life-span of parts thus.Thus, can reduce cost generally.
Description of drawings
From dependent claims and following description, obtain the preferred improvement project of the present invention.Further explain embodiments of the invention with reference to the accompanying drawings, but be not restricted to these embodiments.Wherein:
Fig. 1 has shown the schematic sectional view according to the high-pressure area of internal-combustion engine common rail fuel supply equipment of the present invention in the zone of high-pressure service pump.
List of reference characters
1 high-pressure service pump
2 pump chambers
3 suction valves
4 delivery valves
5 pumping cylinders
6 valve load-bearing members
7 valve bodies
8 valve seats
9 valve bodies
10 valve seats
11 inserting members
12 inserting members
13 grooves
14 grooves
Embodiment
The present invention relates to internal-combustion engine, especially utilize the common rail fuel supply equipment of the marine diesel oil internal-combustion engine of heavy oil operation.The common rail fuel supply equipment has area of low pressure and high-pressure area.The high-pressure area of common rail fuel supply equipment comprises the pump-unit with at least one high-pressure service pump and has the pressure storage system of at least one storage unit, wherein, pump-unit is transported to fuel the high-pressure area from the area of low pressure, and is connected with the pressure storage system by at least one high-pressure fuel line.This pressure storage system and should or each high-pressure fuel line that the pressure storage system is connected with pump-unit continue to be under the high working pressure.From the pressure storage system, fuel can be ejected in the cylinder by sparger, and wherein, each sparger depends on the injection cycle of internal-combustion engine by at least one and high-pressure fuel line that intermittence is under the high pressure is connected with the pressure storage system.
Fig. 1 has shown the sectional view of the high-pressure service pump 1 of the common rail fuel supply equipment in the zone of the pump chamber 2 of high-pressure service pump 1, wherein, fuel can be transported to the pump chamber 2 of high-pressure service pump 1 by the area of low pressure of suction valve 3 from fuel facility, and wherein, delivery valve 4 fuel by high-pressure service pump 1 can be transferred on the direction of the pressure storage system of fuel facility from pump chamber 2.Each high-pressure service pump 1 of common rail fuel supply equipment is associated with a this suction valve 3 and a this delivery valve 4.
The pump chamber 2 of the high-pressure service pump shown in Fig. 1 is combined in the pumping cylinder 5 of so-called high-pressure service pump.Pumping cylinder 5 is associated in the following manner with so-called valve load-bearing member 6, promptly, utilization is led to fuel conduit or is led to the interface of the member that has the fuel supply hole, or introduce fuel conduit in this external valve load-bearing member 6, promptly so on the one hand fuel conduit, be used for fuel is supplied with from the area of low pressure to pump valve 3, so on the other hand fuel conduit is used for fuel from the pressure storage system of delivery valve 4 supplies to fuel facility.
Each of the valve that is associated with high-pressure service pump 1 (that is, not only suction valve 3 but also delivery valve 4) has movable valve body respectively, this valve body and fixing valve seat acting in conjunction.Therefore, suction valve 3 has valve body 7, this valve body 7 and valve seat 8 actings in conjunction.Delivery valve 4 has valve body 9, this valve body 9 and valve seat 10 actings in conjunction.
In thought of the present invention, the valve seat 8 of the suction valve 3 of shown high-pressure service pump 1 and/or the valve seat 10 of delivery valve 4 respectively by independently, removable seat inserting member 11 or 12 structures.Therefore, according to Fig. 1, the valve seat 8 of suction valve 3 is by seat inserting member 11 structures, and the valve seat 10 of delivery valve 4 is by seat inserting member 12 structures.
Among the embodiment shown in Figure 1, the seat inserting member 11 (its valve body 7 for suction valve 3 provides valve seat 8) of suction valve 3 is inserted in the groove 13 that is configured in the valve load-bearing member 6.And the seat inserting member 12 (its valve body 9 for delivery valve 4 provides valve seat 10) of delivery valve 4 is inserted in the groove 14 in the pumping cylinder 5 that is incorporated into high-pressure service pump 1 on the contrary.
Point out in this, differently with shown embodiment same possible be, two seat inserting members 11 and 12 of not only suction valve 3 but also delivery valve 4 are placed in respectively in such groove, that is, the two or be introduced in the pumping cylinder 5 or be introduced in the valve load-bearing member 6.Same possible be the seat inserting member 11 of suction valve 3 to be navigated in the groove in the pumping cylinder 5 and the seat inserting member 12 of delivery valve 4 is navigated in the groove in the valve load-bearing member 6.
Seat inserting member 11 and 12 is preferably formed by material hard, that can bear high capacity.Preferably, seat inserting member 11 and 12 is processed by stupalith.
The advantage that the present invention has is to bear the suction valve 3 of high wearing and tearing and the valve seat 8 and 9 of delivery valve 4 and constructed by the seat inserting member 11,12 that independently can change simply under abrasion condition.Therefore, the valve seat of wearing and tearing can be changed simply, thus, the life-span of other parts of high-pressure service pump can be improved.Therefore, save cost generally.

Claims (7)

1. the fuel facility of an internal-combustion engine, it is the common rail fuel supply equipment, have the area of low pressure, have the pump-unit that comprises at least one high-pressure service pump, to be used for that fuel is transported to the high-pressure area from described area of low pressure, wherein, in described high-pressure area described pump-unit and with sparger that cylinder is associated between be provided with and have at least one storage unit, continue to be in the pressure storage system under the high pressure, and wherein, each high-pressure service pump of described pump-unit is associated with a suction valve and a delivery valve respectively, fuel can be drawn into the pump chamber of each high-pressure service pump from described area of low pressure by described suction valve, can be by described delivery valve at transfer the fuel on the direction of described pressure storage system from the pump chamber of each high-pressure service pump, it is characterized in that, the valve seat (8) of the suction valve (3) of each high-pressure service pump (1) and/or the valve seat (10) of delivery valve (4) are formed by removable seat inserting member (11,12) respectively.
2. fuel facility according to claim 1 is characterized in that, the valve seat (8) of the suction valve (3) of each high-pressure service pump (1) and the valve seat (10) of delivery valve (4) respectively by independently, removable seat inserting member (11,12) forms.
3. fuel facility according to claim 1 and 2, it is characterized in that, be used for providing the seat inserting member (12) of the valve seat (8) of described delivery valve (4) to be combined in the groove (14) of the pumping cylinder (5) of each high-pressure service pump, and be used for providing the seat inserting member (11) of the valve seat (8) of described suction valve (3) to be combined in groove (13) with the valve load-bearing member (6) of coefficient each high-pressure service pump of described pumping cylinder (5).
4. fuel facility according to claim 1 and 2, it is characterized in that, be used for providing described suction valve (3) valve seat (8) seat inserting member (11) and be used to provide the inserting member (12) of the valve seat (10) of described delivery valve (4) to be combined in the groove of the pumping cylinder (5) of each high-pressure service pump respectively.
5. fuel facility according to claim 1 and 2, it is characterized in that, be used for providing described suction valve (3) valve seat (8) seat inserting member (11) and be used to provide the inserting member (12) of the valve seat (10) of described delivery valve (4) be combined in respectively with coefficient each high-pressure service pump of pumping cylinder (5) of each high-pressure service pump the groove of valve load-bearing member (6).
6. fuel facility according to claim 1 and 2, it is characterized in that, be used for providing the seat inserting member (11) of the valve seat (8) of described suction valve (3) to be combined in the groove of the pumping cylinder (5) of each high-pressure service pump, and be used for providing the seat inserting member (12) of the valve seat (10) of described delivery valve (4) to be combined in groove with the valve load-bearing member (6) of coefficient each high-pressure service pump of described pumping cylinder.
7. according to each described fuel facility in the claim 1 to 6, it is characterized in that, be used to provide described suction valve (3) valve seat (8) seat inserting member (11) and be used to provide inserting member (12) of the valve seat (10) of described delivery valve (4) to process by stupalith respectively.
CN2010102314062A 2009-07-09 2010-07-09 Fuel supply apparatus for internal combustion engine Pending CN101956637A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009032305.8 2009-07-09
DE102009032305A DE102009032305A1 (en) 2009-07-09 2009-07-09 Fuel supply system of an internal combustion engine

Publications (1)

Publication Number Publication Date
CN101956637A true CN101956637A (en) 2011-01-26

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JP (2) JP2011017332A (en)
KR (1) KR101589761B1 (en)
CN (1) CN101956637A (en)
DE (1) DE102009032305A1 (en)
FI (1) FI124823B (en)

Cited By (1)

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CN103306873A (en) * 2012-03-08 2013-09-18 曼柴油机和涡轮机欧洲股份公司 Block-shaped fluid pipeline and common rail fuel system

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DE102010002797A1 (en) * 2010-03-12 2011-09-15 Man Diesel & Turbo Se Suction valve of a fuel supply system of an internal combustion engine
CN104204524A (en) 2012-02-03 2014-12-10 S.P.M.流量控制股份有限公司 Pump assembly including fluid cylinder and tapered valve seats
USD748228S1 (en) 2013-01-31 2016-01-26 S.P.M. Flow Control, Inc. Valve seat
CN105934618B (en) 2013-11-26 2018-09-21 S.P.M.流量控制股份有限公司 Valve seat in fracturing pump
DE102014007963A1 (en) * 2014-06-04 2015-12-17 Man Diesel & Turbo Se Method for operating an internal combustion engine and engine control unit

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EP1013921A2 (en) * 1998-12-25 2000-06-28 Denso Corporation Fuel injection pump
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CN101158325A (en) * 2006-10-06 2008-04-09 曼柴油机欧洲股份公司 Fuel supply device for internal combustion engine

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DE102004060003A1 (en) 2004-12-14 2006-07-06 Man B & W Diesel Ag Common rail fuel supply for multicylinder engine has at least two high-pressure pumps connected via separate pump line to one of supply lines
JP4597055B2 (en) * 2006-01-17 2010-12-15 日立造船株式会社 Fuel injection device for internal combustion engine

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US3412931A (en) * 1966-10-18 1968-11-26 Palmer Pumps Ltd Valved cylinder heads
DE2211415A1 (en) * 1971-03-29 1972-10-12 Dresser Industries Ine , Dallas, Tex (VStA) Valve for pumps, compressors or the like
EP1013921A2 (en) * 1998-12-25 2000-06-28 Denso Corporation Fuel injection pump
CN101006269A (en) * 2004-08-24 2007-07-25 罗伯特·博世有限公司 Control valve for an injection valve
WO2007116048A1 (en) * 2006-04-11 2007-10-18 Continental Automotive Gmbh Radial piston pump for supplying fuel at high pressure to an internal combustion engine
CN101158325A (en) * 2006-10-06 2008-04-09 曼柴油机欧洲股份公司 Fuel supply device for internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103306873A (en) * 2012-03-08 2013-09-18 曼柴油机和涡轮机欧洲股份公司 Block-shaped fluid pipeline and common rail fuel system
CN103306873B (en) * 2012-03-08 2016-09-07 曼柴油机和涡轮机欧洲股份公司 Block fluid plumbing member and common rail fuel system

Also Published As

Publication number Publication date
FI20105775A (en) 2011-01-10
FI20105775A0 (en) 2010-07-07
KR101589761B1 (en) 2016-01-28
FI124823B (en) 2015-02-13
JP2013164081A (en) 2013-08-22
KR20110005202A (en) 2011-01-17
DE102009032305A1 (en) 2011-01-13
JP2011017332A (en) 2011-01-27
JP5756493B2 (en) 2015-07-29

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Application publication date: 20110126