USRE43864E1 - Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber - Google Patents
Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber Download PDFInfo
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- USRE43864E1 USRE43864E1 US12/849,890 US84989010A USRE43864E US RE43864 E1 USRE43864 E1 US RE43864E1 US 84989010 A US84989010 A US 84989010A US RE43864 E USRE43864 E US RE43864E
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- fuel
- injector
- direct injection
- main body
- engine block
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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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
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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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
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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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
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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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8023—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of quick-acting mechanisms, e.g. clips
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A method and apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation.
Description
I. Field of the Invention
The present invention relates to a method and apparatus for attenuating noise resulting from fuel pump pulsation in a direct injection internal combustion engine.
II. Description of Related Art
Direct injection internal combustion engines have enjoyed increased acceptance for a variety of reasons. In particular, direct fuel injection into the engine combustion chamber typically results in better fuel economy and more efficient operation of the internal combustion engine.
In a direct injection internal combustion engine, a passageway is formed in the engine block, which includes the engine cylinder head, that is open to each combustion chamber. A direct injection fuel injector is then positioned within this passageway for each of the engine combustion chambers so that an outlet from the fuel injector is open to its associated combustion chamber.
Each fuel injector also includes an inlet that is connected by a fuel rail and typically a fuel pipe to a fuel pump. The fuel pump creates high pressure in the fuel rail and this high pressure, in turn, is fluidly connected to each fuel injector. Thus, upon activation or opening of each fuel injector, the injector injects the fuel directly into the engine combustion chamber.
One disadvantage of these previously known direct fuel injection engines, however, is that the fuel pump is typically cam driven and thus creates fuel pressure pulsations to the fuel rail. These fuel pressure pulsations, furthermore, vary in frequency in dependence upon the engine rpm. These fuel pump pulsations disadvantageously result in vibrations that are transmitted by the fuel injectors to the engine block and create an audible and undesirable noise as well as vibration and possible part fatigue.
The present invention provides an apparatus to attenuate the audible noise and vibration created by the previously known direct injection internal combustion engines.
In one form of the invention, a direct injection fuel nozzle is associated with each engine combustion chamber in the engine block which, as used herein, includes the engine cylinder head. Each direct injection fuel nozzle, furthermore, is elongated and includes a main body with a fuel inlet at one end and a tip with a fuel outlet at its other end.
An injector cup is secured to the fuel rail which, in turn, is fluidly connected to the fuel pump. Each injector cup, furthermore, includes an open end cavity with the fuel rail and is dimensioned to receive a portion of the main body of the fuel injector. This portion of the fuel injector, furthermore, is fluidly sealed to the injector cup by an O-ring or similar seal.
An injector holder assembly then secures the fuel injector to the injector cup so that the fuel injector is suspended from the fuel rail. Simultaneously, the injector tip of the fuel injector is positioned within the engine block passageway open to the combustion chamber. However, the injector holder assembly maintains the injector tip at a position spaced from the walls of the block passageway thus avoiding metal-to-metal contact between the fuel injector and the engine block. The fuel tip is then fluidly sealed to the engine block passageway by a seal which may be non-metallic.
Since the injector holder assembly suspends its associated fuel injector from the fuel rail thus avoiding metal-to-metal contact with the engine block, fuel pressure pulsations that are transmitted to the fuel injector and can cause vibration are effectively isolated from, and thus attenuated by, the seal between the injector tip and the engine block.
In a modification of the invention, the fuel injector is mounted to the injector cup so that the fuel injector may pivot or swivel slightly relative to the injector cup. Tapered surfaces on the injector reduces the bending arm between the injector and its mounting clip and thus reduces stress.
In still another form of the present invention, the inlet for the fuel injector extends radially outwardly from the fuel injector main body at a position spaced inwardly from its end positioned within the injector cup. A pair of annular seals are then positioned between the injector main body and the injector cup such that the seals create an annular fluid chamber in communication with the injector inlet. This annular chamber in turn is fluidly connected to the fuel rail.
Consequently, during operation of the fuel rail, the high pressure within the fuel rail simultaneously imposes a force on both O-rings that are substantially equal in magnitude, but opposite in direction. As such, fuel pressure on the fuel injector in a direction towards the injector tip that would otherwise occur, together with vibrations resulting from that axial force, is avoided.
In still another form of the invention, an enlarged diameter reservoir is fluidly provided in series between the fuel pump and the fuel injectors. In one embodiment, a fuel pipe fluidly connects the fuel pump to one or more fuel rails. A reservoir is then positioned fluidly in series in the fuel pipe immediately upstream from the fuel rail. In practice, the reservoir functions to dampen and attenuate vibrations from the fuel pump before such vibrations reach the fuel rails.
In another form of the invention, the reservoir is positioned between the fuel rails and each of the fuel injectors. Such fuel reservoirs also serve to dampen the fuel pressure pulsations from the fuel pump.
In yet another form of the invention, a small diameter orifice is provided between the fuel rail and each fuel injector. These small diameter orifices also act to dampen the fuel pressure fluctuations, and thus transmission of vibration from the fuel pump and to the fuel injectors.
A better understanding of the present invention will be had upon reference to the following detailed description when read in conjunction with the accompany drawing, wherein like reference characters refer to like parts throughout the several views, and in which:
With reference first to FIG. 1 , a fuel delivery system having a direct injection nozzle assembly 20 in accordance with one form of the present invention is illustrated for use with a direct injection internal combustion engine 22. The engine 22 includes an engine block 247 including the cylinder head, which defines at least one, and more typically several, internal combustion chambers 26.
A spark plug 23 initiates the fuel combustion in the combustion chamber 26 to drive a piston 25 reciprocally mounted in a cylinder 27 in the engine block 24. Following fuel combustion, the combustion products are exhausted through an exhaust manifold 29.
A direct injection fuel injector 28 is associated with each combustion chamber 26. Each fuel injector 28, furthermore, includes a portion mounted within a passageway 30 formed in the engine block 24 and open to the combustion chamber 26. One fuel injector 28 is associated with each combustion chamber 26.
The fuel injector 28, which will subsequently be described in greater detail, is fluidly connected to a high pressure fuel rail 32. The fuel rail 32, in turn, is fluidly connected by a fuel pipe 34 to a high pressure fuel pump 36.
The high pressure fuel pump 36 typically comprises a cam pump having a cam 38 that is rotatably driven by the engine. Consequently, operation of the pump 36 produces fuel pressure pulsations through the fuel pipe 34, rail 32 and fuel injectors 28 unless otherwise attenuated.
With reference now to FIG. 2 , one direct injection fuel injector 28 is illustrated in greater detail. The injector 28 is elongated and includes a main body 40 having concentric tubular parts 41 and 43 and aligned with an injector tip 42. A fluid passageway 44 is formed through the injector 28 so that an inlet 46 to the injector 28 is open at the main body 40 while a fuel injector outlet 48 is open at the open end of the injector tip 42. Conventional means (not shown) are employed to selectively activate, i.e. open and close, the fuel injector 28 so that, when activated, fuel is injected from the outlet 48 of the fuel injector 28 into the combustion chamber 26 associated with the fuel injector 28.
In order to attach the fuel injector 28, the holder assembly 20 includes an injector cup 50 having a housing defining an interior cavity 52 open at one end 54. The other end of the cavity 52 is fluidly connected to the fuel rail 32 by a fuel port 56.
The injector cup cavity 52 is dimensioned to slidably receive a portion of the injector main body 40 through the open end 54 of the cavity 52. An O-ring or other seal 58 then fluidly seals the outer periphery of the fuel injector main body 40 to the inside of the cavity 52 thus forming a fuel inlet chamber 60. Both the injector inlet 46 and the fuel port 56 between the fuel rail 32 and injector cup 50 are open to the fuel inlet chamber 60.
With reference now to FIGS. 2-4 , in order to actually attach the fuel injector 28 to the injector cup 50, the injector cup 50 includes at least two, and preferably three outwardly extending tabs 62 at spaced positions around the outer periphery of the injector cup 50. An injector clip holder 66 includes a plurality of spaced openings 68 which are dimensioned to receive the injector cup tabs 62 therethrough. The injector clip holder 66, furthermore, is constructed of a rigid material, such as metal, and is firmly secured to the injector cup 50 once the tabs 62 are positioned through the openings 68 in the clip 66.
The holder assembly further comprises an injector clip plate 70, best shown in FIG. 4 . The clip plate 70 is generally planar in construction and includes a plurality of outwardly extending protrusions 72 at spaced intervals around its periphery. These protrusions 72, furthermore, are dimensioned to be received also within the openings 68 on the clip holder 66 such that the protrusions 72 flatly abut against the tabs 62 on the injection cup 50.
The clip plate 70 is constructed of a rigid material, such as metal, and includes a cutout 74 designed to fit around a portion of the main body 40 of the fuel injector 28. With the clip plate 70 positioned around the fuel injector 28, the clip plate 70 abuts against an abutment surface 76 on the fuel injector main body 40.
Consequently, in operation, the clip holder 66 secures the clip plate 70 to the injection cup 50 which, in turn, is secured to the fuel rail 32 in any conventional fashion, such as a press fit. The clip plate 70 then supports the abutment surface 76 of the fuel injector 28. In doing so, the holder assembly 20 together with the injector cup 50 suspends the fuel injector 28 from the fuel rail 32.
Referring again particularly to FIG. 2 , the holder assembly 20, injector cup 50 and fuel injector 28 are all dimensioned so that with the fuel injector 28 secured to the injector cup 50 by the holder assembly 20, the tip 42 of the fuel injector 28 is positioned within the injector passageway 30 formed in the engine block but is spaced from, i.e. not in contact with, the engine block 24 thus avoiding direct contact between the fuel injector 28 and the block 24. Since the fuel injector 28 as well as the engine block 24 are conventionally formed of metal, the space in between the fuel injector 28 and the fuel injector passageway 30 thus avoids direct metal-to-metal contact between the injector 28 and block 24.
In order to seal the fuel tip 42 to the fuel injector passageway 30, a tip seal 78 is provided around the fuel tip 42 such that the tip seal 78 extends between and seals the fuel tip 42 to the passageway 30. The tip seal 78 is constructed of a non-metallic material, such as Teflon. Furthermore, the tip seal 78 may be more axially elongated than that shown in the drawing and, optionally, two or more tip seals 78 may be used with each injector 20.
In operation, since metal-to-metal contact between the fuel injector 28 and the engine block 24 is avoided, the transmission of vibrations or pulsations from the fuel pump to the engine block 24 is likewise avoided.
With reference now to FIG. 5 , a modification of the fuel nozzle 28 is illustrated which is substantially the same as the fuel nozzle 28 illustrated in FIG. 3 except that the fuel nozzle abutment surface 76′, i.e. the surface supported by the clip plate 70, is tapered or curved upwardly toward the inlet end 46 of the nozzle 28 and an annular surface 77 opposed to and facing the surface 76′ is tapered downwardly.
The tapered surfaces 76′ and 77 on the injector 28 thus allow the injector 28 to swivel or pivot slightly, as shown in FIG. 6 , and thus minimize or at least reduce the bending arm of the fuel injector 28, i.e. reducing or minimizing the distance between the point of contact between the injector 28 and clip plate 70 on diametrically opposite sides of the nozzle 28.
With reference now to FIG. 7 , a still further modification of the present invention is illustrated in which the inlet 46 to the fuel injector 28 extends radially outwardly from the portion of the fuel injector main body 40 that is positioned within the injector cup 50. As such, the inlet 46, which may also include several circumferentially spaced inlet ports, is spaced from an upper end 60 of the fuel injector 28.
A pair of axially spaced seals or O-rings 80 are then disposed around the main body 40 of the fuel injector 28 such that the O-rings 80 form an annular fuel inlet chamber 82 which is open to the fuel inlet 46. In addition, the fuel rail 32 is fluidly connected by a passageway 84 to this annular fuel inlet chamber 82. This fuel passageway 84 may be formed in the injector cup 50 or be separate from the injector cup 50.
In operation, high pressure fuel flow from the fuel rail 32 flows through the passageway 84 and into the annular fuel inlet chamber 82. From the annular inlet chamber 82, the fuel flows through the injector inlet 46 and ultimately to its outlet 48 in the conventional fashion.
Any pressure pulsations that are contained within the fuel flow from the fuel rail 32 act equally on both O-rings 80 thus providing a longitudinal force on the fuel injector 28 in equal but opposite longitudinal directions. This, in turn, minimizes the downward force on the fuel injector 28 and thus the stress imposed on the clip plate 70 as well as vibrations imparted on the engine block 24.
With reference now to FIG. 8 , a still further strategy and apparatus for reducing the transmission of fuel pump pressure pulsations to the engine block is also shown in which the fuel pump 36 is connected by the fuel pipe 34 to one or more fuel rails 32. In order to reduce the transmission of the fuel pump pulsations to the fuel rails 32, and thus to the fuel injectors 28, a fuel reservoir 90 is positioned fluidly in series with the fuel pipe 34 and preferably immediately upstream from each fuel rail 32. Alternately, the fuel reservoir 90 may form the fluid connection from the fuel pipe 34 and the fuel rails 32.
The fuel reservoir 90 is rigid in construction and has an inside diameter preferably in the range of 1.2 d-1.5 d where d is the inside diameter of the fuel pipe 34. In practice, such sizing of the fuel reservoir 90 simply, but effectively, dampens and attenuates the fuel pump vibrations conveyed to the fuel rails 32.
Although the fuel reservoirs 90 are illustrated in FIG. 8 as being cylindrical in cross-sectional shape, such a cylindrical shape is not required to create the desired attenuation of the fuel pump pulsations. Rather, a simple rounded or tapered bulge 91 may form the reservoir 90 as shown in FIG. 11 and will suffice to adequately attenuate such vibrations.
With reference now to FIG. 9 , a modification of the invention is illustrated in which a fuel reservoir 92 is still positioned in series between the fuel pump 36 and the fuel injector 28. However, unlike the fuel reservoir 90 illustrated in FIG. 8 , the fuel reservoir 92 illustrated in FIG. 9 disposed fluidly in series between the fuel rail 32 and the inlet 46 for each fuel injector 28.
The reservoir 92 is also rigid in construction and is preferably cylindrical in shape. Furthermore, an inside diameter of the reservoir 92 is preferably in the range of 1.2 d-1.5 d where d equals the diameter of the fluid in the port 94 to the fluid reservoir 92.
With reference now to FIG. 10 , a still further embodiment of the present invention is shown which attenuates the transmission of fuel pulsations caused by the fuel pump from the fuel rail to the engine block 24. In FIG. 10 , a restricted orifice 96 fluidly connects the fuel rail 32 to the injector cup 50 which receives the fuel injector 28. This restricted orifice 96, which is preferably approximately 0.5 of the size of the fuel injector inlet, effectively attenuates the transmission of fuel pump pressure pulsations and resulting vibrations to the engine block 24.
From the foregoing, it can be seen that the present invention provides both a method and apparatus to effectively reduce and attenuate the transmission of pulsations and vibrations from the fuel pump in a direct injection internal combustion engine to the engine block.
Having described our invention, however, many modifications thereto will become apparent to those skilled in the art to which it pertains without deviation from the spirit of the invention as defined by the scope of the appended claims.
Claims (27)
1. For use in conjunction with a direct injection internal combustion engine having at least one fuel rail, an engine block, a combustion chamber in the engine block and a passageway in the engine block to the combustion chamber, a direct injection nozzle assembly comprising:
a direct injection fuel nozzle injector having a main body with a fuel inlet and a nozzle tip with a fuel outlet,
an injector cup secured to the fuel rail, said injector cup having an open end cavity in fluid communication with the fuel rail and dimensioned to receive a portion of said main body of said fuel injector, and
an injector holder assembly which secures said direct injection fuel injector to the injector cup so that said nozzle tip of said fuel injector is positioned within but the engine block passageway, and said nozzle tip and said main body are spaced from the engine block passageway,
wherein said injector holder assembly comprises a clip holder attached to said injector cup and a clip plate attached to said clip holder, said clip plate having a portion in abutment with an abutment surface on said fuel injector main body so that said clip plate supports said direct injection fuel injector against movement towards the engine block,
wherein said abutment surface on said fuel injector main body extends laterally outwardly from the fuel injector main body and tapers curvilinearly upwardly away from said fuel injector tip.
2. The invention as defined in claim 1 wherein said injector cup comprises at least two circumferentially spaced and outwardly extending tabs, and wherein said clip holder includes at least two openings which receive said tabs.
3. The invention as defined in claim 1 wherein said injector cup comprises at least three circumferentially spaced and outwardly extending tabs, and wherein said clip holder includes at least three openings which register with and receive said tabs.
4. The invention as defined in claim 2 wherein said injector clip comprises at least two protrusions, one protrusion being positioned in each of said at least two clip holder openings.
5. The invention as defined in claim 1 and comprising a tip seal disposed around said nozzle tip of said fuel injector so that an outer surface of said tip seal is in abutment with the engine block.
6. The invention as defined in claim 5 wherein said tip seal is constructed of a non-metallic material.
7. The invention as defined in claim 1 wherein said abutment surface on said fuel injector main body extends laterally outwardly from the fuel injector main body and tapers upwardly away from said fuel injector tip includes a downwardly tapered surface opposed to and facing said abutment surface.
8. The invention as defined in claim 1 and comprising a seal disposed around said main body of said fuel injector within said injector cup cavity, said seal having an outer surface in sealing contact with said injector cup.
9. The invention as defined in claim 1 and comprising a pair of spaced seals disposed around said main body of said fuel injector within said injector cup cavity, said seals each having an outer surface in sealing contact with said injector cup and wherein said seals form an annular fluid chamber between said injector cup and said direct injection fuel injector, said injector fuel inlet being open to said annular fluid chamber.
10. A method of dampening transmission of fuel pump vibration to an engine block in a direct injection internal combustion engine having a fuel rail connected to the fuel pump and at least one direct injection fuel nozzle injector having a main body comprising the steps of:
suspending the direct injection nozzle fuel injector from the fuel rail so that a portion of the direct injection nozzle fuel injector is positioned within an engine block passageway without direct contact with the engine block, and
fluidly sealing the direct injection nozzle fuel injector to the engine block with a seal,
wherein the direct injection nozzle fuel injector includes a fuel inlet, and further comprising the steps of:
providing a pair of axially spaced apart O-rings around the main body of the direct injection fuel nozzle so that the O-rings form an annular fluid chamber around the main body of the direct injection nozzle, the fuel inlet of the nozzle direct injection fuel injector being in direct fluid communication with the annular fluid chamber, and
directly fluidly connecting the annular fluid chamber with the fuel rail.
11. The invention as defined in claim 10 wherein said suspending step further comprises the step of pivotally suspending the direct injection nozzle fuel injector to the fuel rail.
12. For use in conjunction with a direct injection internal combustion engine having at least one fuel rail, an engine block, a combustion chamber in the engine block and a passageway in the engine block to the combustion chamber, a direct injection nozzle assembly comprising:
a direct injection fuel nozzle injector having a main body with a fuel inlet and a nozzle tip with a fuel outlet,
an injector cup secured to the fuel rail, said injector cup having an open end cavity in fluid communication with the fuel rail and dimensioned to receive a portion of said main body of said fuel injector,
an injector holder assembly which secures said direct injection fuel injector to the injector cup so that said nozzle tip of said direct injection fuel injector is positioned within but spaced from the engine block passageway, and said nozzle tip and said main body are spaced from the engine block passageway, and
a pair of spaced seals disposed around said main body of said fuel injector within said injector cup cavity, said seals each having an outer surface in sealing contact with said injector cup and wherein said seals form an annular fluid chamber between said injector cup and said direction injection fuel injector, said injector fuel inlet and the fuel rail both being directly fluidly connected to said annular fluid chamber.
13. The direct fuel injection assembly of claim 1, wherein said abutment surface on said main body extends laterally outwardly from the fuel injector main body and tapers curvilinearly upwardly away from said fuel injector tip.
14. The direct fuel injection assembly of claim 1, wherein said clip plate is supported on an opposite surface to a surface thereof in abutment with the abutment surface of said main body by said clip holder and supports the movement of said direct injection fuel injector toward the engine block.
15. A fuel delivery system for delivering fuel to a direct injection internal combustion engine comprising a fuel pump, a direct injection fuel injector, and a fuel rail being rigid in a construction and fluidly connected to said fuel pump and said direct injection fuel injector, said direct injection fuel injector injecting fuel from a passageway in communication with a combustion chamber in an engine block into said combustion chamber,
wherein said direct injection fuel injector has a main body including a fuel inlet and a nozzle tip with a fuel injection port,
wherein said fuel rail has an injector cup having an end opening space fluidly connected to the fuel rail, said injector cup being dimensioned to be formed so as to receive a portion of said main body,
wherein said direct injection fuel injector is secured to said injector cup and comprises an injector holder assembly for positioning the nozzle tip in the engine block passageway, with the main body and the nozzle tip being spaced from said engine block passageway,
wherein said injector holder assembly has a clip holder attached to said injector cup and a clip plate attached to said clip holder, said clip plate being in abutment with an abutment surface of said main body so as to regulate movement of the direct injection fuel injector toward the engine block, and
wherein said abutment surface of said fuel injector main body extends laterally outwardly from the fuel injector main body and tapers curvilinearly upwardly away from said nozzle tip.
16. The fuel delivery system as defined in claim 15 and comprising a pipe having one end fluidly connected to said fuel pump and a second end fluidly connected with said fuel rail.
17. The fuel delivery system as defined in claim 15 and comprising a fuel reservoir fluidly connected in series between said fuel pump and said direct injection fuel injector.
18. The fuel delivery system as defined in claim 15 wherein said injector cup comprises at least two circumferentially spaced and outwardly extending tabs, and wherein said clip holder includes at least two openings which receive said tabs.
19. The fuel delivery system as defined in claim 15 wherein said injector cup comprises at least three circumferentially spaced and outwardly extending tabs, and wherein said clip holder includes at least three openings which register with and receive said tabs.
20. The fuel delivery system as defined in claim 18 wherein said injector clip comprises at least two protrusions, one protrusion being positioned in each of said at least two clip holder openings.
21. The fuel delivery system as defined in claim 15 and comprising a tip seal disposed around said nozzle tip so that an outer surface of said tip seal is in abutment with the engine block.
22. The fuel delivery system as defined in claim 21 wherein said tip seal is constructed of a non-metallic material.
23. The fuel delivery system as defined in claim 15 wherein said abutment surface on said main body extends laterally outwardly from the main body and tapers upwardly away from said nozzle tip.
24. The fuel delivery system as defined in claim 23 wherein said main body includes a downwardly tapered surface opposed to and facing said abutment surface.
25. The fuel delivery system as defined in claim 15 and comprising a seal disposed around said main body within said injector cup cavity, said seal having an outer surface in sealing contact with said injector cup.
26. The fuel delivery system as defined in claim 15 and comprising a seal disposed around said main body within said injector cup cavity, said seal having an outer surface in sealing contact with said injector cup and wherein said seals form an annular fluid chamber between said injector cup and said direct injection fuel injector, said fuel inlet being open to said annular fluid chamber.
27. The fuel delivery system of claim 15, wherein said clip plate is supported on an opposite surface to a surface thereof in abutment with the abutment surface of said main body by said clip holder and supports the movement of said direct injection fuel injector toward the engine block.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/849,890 USRE43864E1 (en) | 2007-04-02 | 2010-08-04 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/695,195 US7406946B1 (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
US12/849,890 USRE43864E1 (en) | 2007-04-02 | 2010-08-04 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/695,195 Reissue US7406946B1 (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
Publications (1)
Publication Number | Publication Date |
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USRE43864E1 true USRE43864E1 (en) | 2012-12-18 |
Family
ID=39500026
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US11/695,195 Ceased US7406946B1 (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
US12/849,890 Active USRE43864E1 (en) | 2007-04-02 | 2010-08-04 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US11/695,195 Ceased US7406946B1 (en) | 2007-04-02 | 2007-04-02 | Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber |
Country Status (4)
Country | Link |
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US (2) | US7406946B1 (en) |
EP (2) | EP1978240B1 (en) |
JP (4) | JP4890482B2 (en) |
AT (1) | ATE516437T1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110186016A1 (en) * | 2008-05-30 | 2011-08-04 | Thilo Bolz | Hold-down device for a fuel injection device |
US20120204837A1 (en) * | 2011-02-16 | 2012-08-16 | Hitachi Automotive Systems Americas Inc. | Fuel injector assembly |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004048401A1 (en) * | 2004-10-01 | 2006-04-06 | Robert Bosch Gmbh | Downholder for a fuel injector and fuel injector |
DE502006006106D1 (en) * | 2005-03-03 | 2010-03-25 | Bosch Gmbh Robert | FUEL INJECTION EQUIPMENT |
DE102005043817A1 (en) * | 2005-09-13 | 2007-03-22 | Siemens Ag | Method for operating a fuel pump |
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US20090013968A1 (en) * | 2007-07-09 | 2009-01-15 | Keegan Kevin R | Vapor recovery system for a direct injector fuel rail assembly |
DE102007049357A1 (en) * | 2007-10-15 | 2009-04-16 | Robert Bosch Gmbh | Fuel injection device |
US7942132B2 (en) | 2008-07-17 | 2011-05-17 | Robert Bosch Gmbh | In-line noise filtering device for fuel system |
US20100012093A1 (en) * | 2008-07-18 | 2010-01-21 | Pepperine Dean M | High-pressure fuel injector to fuel rail connection |
US7798127B2 (en) | 2008-08-05 | 2010-09-21 | Delphi Technologies, Inc. | Top mounting fuel injector clip |
US7793639B2 (en) * | 2008-09-25 | 2010-09-14 | Hitachi, Ltd. | Apparatus for reducing the transmission for noise from the fuel rail in a direct injection engine |
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US8678779B2 (en) * | 2010-03-05 | 2014-03-25 | Hitachi, Ltd. | Fuel pump |
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US9309849B2 (en) | 2011-03-23 | 2016-04-12 | Hitachi, Ltd | Method and apparatus for reducing the number of separately distinguishable noise peaks in a direct injection engine |
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US8875681B2 (en) | 2011-10-28 | 2014-11-04 | Robert Bosch Gmbh | Fuel rail mounting arrangement |
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US10794350B1 (en) | 2019-07-31 | 2020-10-06 | Delphi Technologies Ip Limited | Fuel line assembly having a fuel line and a fuel injector socket |
Citations (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4363607A (en) | 1979-01-13 | 1982-12-14 | Zahnradfabrik Friedrichshafen, Ag | Radial piston pump |
US4519371A (en) | 1981-11-04 | 1985-05-28 | Honda Giken Kogyo Kabushiki Kaisha | Mounting device for fuel injection nozzles for internal combustion engines |
US4612089A (en) | 1984-03-16 | 1986-09-16 | Devron Engineering Ltd. | Surge suppression device |
US4649884A (en) | 1986-03-05 | 1987-03-17 | Walbro Corporation | Fuel rail for internal combustion engines |
US4719889A (en) | 1986-01-22 | 1988-01-19 | Dereco Dieselmotoren Forschungsund Entwicklungs-Ag | Fuel injection installation for an internal combustion engine |
US4751904A (en) | 1986-11-07 | 1988-06-21 | Sharon Manufacturing Company | Low profile fuel injection rail |
US4944262A (en) | 1989-04-05 | 1990-07-31 | Inasa Automotive, Inc. | Rotative combustion chamber engine |
US5035224A (en) * | 1990-07-06 | 1991-07-30 | Siemens Automotive L.P. | Clip retention of a split-stream fuel injector to a fuel rail cup including circumferential locator |
US5136999A (en) | 1989-06-06 | 1992-08-11 | Robert Bosch Gmbh | Fuel injection device for internal combustion engines |
US5234569A (en) | 1992-04-13 | 1993-08-10 | Hitachi America, Ltd., Research And Development Division | Air/fuel ratio sensor for an internal combustion engine |
US5426934A (en) | 1993-02-10 | 1995-06-27 | Hitachi America, Ltd. | Engine and emission monitoring and control system utilizing gas sensors |
US5456233A (en) | 1993-04-28 | 1995-10-10 | Robert Bosch Gmbh | Fuel injection arrangement for internal combustion engines |
JPH07293390A (en) | 1994-04-21 | 1995-11-07 | Robert Bosch Gmbh | Fuel injection device |
US5465701A (en) | 1993-12-27 | 1995-11-14 | Hitachi America, Ltd. | Internal combustion fuel control system |
US5482023A (en) | 1994-12-27 | 1996-01-09 | Hitachi America, Ltd., Research And Development Division | Cold start fuel control system |
US5529035A (en) | 1994-11-08 | 1996-06-25 | Hitachi America, Ltd. | Cold start fuel injector with heater |
US5535724A (en) | 1995-08-23 | 1996-07-16 | Davco Manufacturing L.L.C. | Fuel pulsation dampener |
US5598826A (en) | 1994-12-27 | 1997-02-04 | Hitachi America, Ltd. | Cold start fuel control system for an internal combustion engine |
US5630400A (en) | 1995-10-17 | 1997-05-20 | Mitsubishi Denki Kabushiki Kaisha | Fuel injection valve for an internal combustion engine |
JPH1030521A (en) | 1996-07-12 | 1998-02-03 | Denso Corp | Fuel injector |
US5806494A (en) | 1997-08-06 | 1998-09-15 | Caterpillar Inc. | Hydraulically actuated fuel injection system with integrated actuation fluid rail and injectors |
US5894832A (en) | 1996-07-12 | 1999-04-20 | Hitachi America, Ltd., Research And Development Division | Cold start engine control apparatus and method |
US5909725A (en) | 1997-09-12 | 1999-06-08 | Siemens Canada Limited | Automotive emission control valve retaining clip and mounting method |
JPH11270430A (en) | 1998-03-25 | 1999-10-05 | Sanshin Ind Co Ltd | Cylinder fuel injection type engine |
US5970953A (en) | 1999-01-12 | 1999-10-26 | Siemens Automotive Corporation | High pressure injector clip |
US6050236A (en) | 1997-05-28 | 2000-04-18 | Nissan Motor Co., Ltd. | Covering device for an internal combustion engine |
US6053149A (en) | 1998-05-28 | 2000-04-25 | Siemens Automotive Corporation | Fuel injector clip retention arrangement |
US6109247A (en) | 1999-09-21 | 2000-08-29 | Hitachi America, Ltd. | Heater for a cold start fuel injector |
US6213096B1 (en) | 1998-03-25 | 2001-04-10 | Sanshin Kogyo Kabushiki Kaisha | Fuel supply for direct injected engine |
JP2001132576A (en) | 1999-11-10 | 2001-05-15 | Sanoh Industrial Co Ltd | Fuel supply device for engine |
US6276339B1 (en) | 2000-05-02 | 2001-08-21 | Delphi Technologies, Inc. | Fuel injector spring clip assembly |
US6279549B1 (en) | 1999-09-21 | 2001-08-28 | Hitachi America, Ltd. | Heater for a cold start fuel injector |
US6314943B1 (en) | 1999-10-22 | 2001-11-13 | Ford Global Technologies, Inc. | Fuel supply rail with integrated fuel injector load spring |
US6401691B1 (en) | 1998-10-22 | 2002-06-11 | Nippon Soken, Inc. | Fuel supply system for relieving fuel pressure pulsations and designing method thereof |
US6427667B1 (en) | 1999-05-27 | 2002-08-06 | Sanshin Kogyo Kabushiki Kaisha | Fuel injector mounting arrangement |
US6494186B1 (en) | 1999-09-30 | 2002-12-17 | Siemens Vdo Automotive Corporation | Integral engine control sensor |
US6543421B2 (en) | 2000-03-21 | 2003-04-08 | Siemens Automotive Corporation | Fuel injector assembly for mounting a fuel injector to a fuel rail and permitting alignment of the fuel injector |
US6604512B2 (en) | 1998-05-13 | 2003-08-12 | Yamaha Marine Kabushiki Kaisha | Fuel supply for direct injected engine |
US6609898B1 (en) | 2001-10-01 | 2003-08-26 | Putzmeister Inc. | Process and device for pumping compressible materials with reduced pressure pulsation |
US20030183200A1 (en) | 2002-04-02 | 2003-10-02 | Siemens Vdo Automotive Corporation | Apparatus and method of connecting a fuel injector and a fuel rail |
US6640784B1 (en) | 2002-10-09 | 2003-11-04 | Robert Bosch Corporation | Spark ignition direct injection system |
JP2004028053A (en) | 2002-06-28 | 2004-01-29 | Denso Corp | Fuel feeder and method for assembling the same |
US6698400B2 (en) | 2000-06-30 | 2004-03-02 | Fev Motorentechnik Gmbh | Piston internal combustion engine comprising a deflection-resistant cross brace for sealingly fixing fuel injection |
US6736103B2 (en) | 2002-10-21 | 2004-05-18 | Hitachi Ltd. | System for management of fuel in a cold start fuel passageway |
US6745798B2 (en) | 2001-09-06 | 2004-06-08 | Siemens Vdo Automotive Corporation | Apparatus, system, and method for reducing pressure pulsations and attenuating noise transmission in a fuel system |
JP2004239124A (en) | 2003-02-05 | 2004-08-26 | Hitachi Ltd | Fuel injection valve and cylinder injection engine |
US6807944B2 (en) | 2002-10-09 | 2004-10-26 | Usui Kokusai Sangyo Kaisha, Ltd. | Method and apparatus for attenuating pressure pulsation in opposed engines |
US6830037B1 (en) | 2004-01-27 | 2004-12-14 | Delphi Technologies, Inc. | Anti-rotation fuel injector clip |
US6843238B2 (en) | 2002-03-08 | 2005-01-18 | Hitachi, Ltd. | Cold start fuel control system |
US6871634B2 (en) | 2001-11-30 | 2005-03-29 | Robert Bosch Gmbh | Fuel injection system |
US6874467B2 (en) | 2002-08-07 | 2005-04-05 | Hitachi, Ltd. | Fuel delivery system for an internal combustion engine |
US6901913B1 (en) | 2001-07-16 | 2005-06-07 | Usui Kokusai Sangyo Kaisha Ltd. | Fuel pressure pulsation suppressing system |
JP2005147075A (en) | 2003-11-19 | 2005-06-09 | Usui Kokusai Sangyo Kaisha Ltd | Fuel delivery pipe |
US6904894B2 (en) | 2002-10-18 | 2005-06-14 | Usui Kokusai Sangyo Kaisha Ltd. | Pulsation reducing system for fuel line |
JP2005163627A (en) | 2003-12-02 | 2005-06-23 | Mitsubishi Electric Corp | Fuel injection valve device |
US6925989B2 (en) | 2003-08-18 | 2005-08-09 | Visteon Global Technologies, Inc. | Fuel system having pressure pulsation damping |
JP2005226489A (en) | 2004-02-10 | 2005-08-25 | Denso Corp | Fuel supply device |
US6948479B1 (en) | 2004-09-01 | 2005-09-27 | Delphi Technologies, Inc. | Inline pulsation damper system |
US7007667B2 (en) | 2003-07-22 | 2006-03-07 | Hitachi, Ltd. | Cold start fuel control system |
EP1637729A1 (en) | 2004-09-16 | 2006-03-22 | Nissan Motor Co., Ltd. | Support structure of fuel injector |
DE102004049277A1 (en) | 2004-10-09 | 2006-04-13 | Robert Bosch Gmbh | Damping element for a fuel injection valve |
US20060118091A1 (en) | 2004-12-03 | 2006-06-08 | Zdroik Michael J | Fuel injector retention clip |
WO2006092427A1 (en) | 2005-03-03 | 2006-09-08 | Robert Bosch Gmbh | Fuel injection device |
US20070064403A1 (en) | 2005-09-19 | 2007-03-22 | Harsha Badarinarayan | Housing for an electronic circuit |
US7261089B2 (en) | 2003-08-18 | 2007-08-28 | Robert Bosch Gmbh | Fuel injector nozzle seal |
US7293550B2 (en) | 2006-01-31 | 2007-11-13 | Gm Global Technology Operations, Inc. | Fuel injector isolation seat |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3914636A1 (en) * | 1989-05-03 | 1990-11-08 | Bosch Gmbh Robert | DEVICE FOR COMBINED BLOWING OUT OF FUEL AND AIR FOR FUEL INJECTION SYSTEMS FROM INTERNAL COMBUSTION ENGINES |
DE4302668A1 (en) * | 1993-01-30 | 1994-08-04 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
JP3991452B2 (en) * | 1998-06-19 | 2007-10-17 | 三菱自動車工業株式会社 | Injector mounting structure |
JP4034762B2 (en) * | 2004-07-06 | 2008-01-16 | 三菱電機株式会社 | Assembly structure of fuel injection valve |
JP2006194132A (en) * | 2005-01-12 | 2006-07-27 | Toyota Motor Corp | Injector, fuel injection system and fluid distribution structure |
-
2007
- 2007-04-02 US US11/695,195 patent/US7406946B1/en not_active Ceased
-
2008
- 2008-02-26 JP JP2008044145A patent/JP4890482B2/en active Active
- 2008-04-02 AT AT08006761T patent/ATE516437T1/en not_active IP Right Cessation
- 2008-04-02 EP EP08006761A patent/EP1978240B1/en active Active
- 2008-04-02 EP EP11157976.9A patent/EP2333305B1/en active Active
-
2010
- 2010-08-04 US US12/849,890 patent/USRE43864E1/en active Active
-
2011
- 2011-02-25 JP JP2011040110A patent/JP5275387B2/en active Active
- 2011-12-14 JP JP2011272903A patent/JP5320454B2/en active Active
-
2013
- 2013-07-11 JP JP2013145097A patent/JP2013199943A/en active Pending
Patent Citations (77)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4363607A (en) | 1979-01-13 | 1982-12-14 | Zahnradfabrik Friedrichshafen, Ag | Radial piston pump |
US4519371A (en) | 1981-11-04 | 1985-05-28 | Honda Giken Kogyo Kabushiki Kaisha | Mounting device for fuel injection nozzles for internal combustion engines |
US4612089A (en) | 1984-03-16 | 1986-09-16 | Devron Engineering Ltd. | Surge suppression device |
US4719889A (en) | 1986-01-22 | 1988-01-19 | Dereco Dieselmotoren Forschungsund Entwicklungs-Ag | Fuel injection installation for an internal combustion engine |
US4649884A (en) | 1986-03-05 | 1987-03-17 | Walbro Corporation | Fuel rail for internal combustion engines |
US4751904A (en) | 1986-11-07 | 1988-06-21 | Sharon Manufacturing Company | Low profile fuel injection rail |
US4944262A (en) | 1989-04-05 | 1990-07-31 | Inasa Automotive, Inc. | Rotative combustion chamber engine |
US5136999A (en) | 1989-06-06 | 1992-08-11 | Robert Bosch Gmbh | Fuel injection device for internal combustion engines |
US5035224A (en) * | 1990-07-06 | 1991-07-30 | Siemens Automotive L.P. | Clip retention of a split-stream fuel injector to a fuel rail cup including circumferential locator |
US5234569A (en) | 1992-04-13 | 1993-08-10 | Hitachi America, Ltd., Research And Development Division | Air/fuel ratio sensor for an internal combustion engine |
US5426934A (en) | 1993-02-10 | 1995-06-27 | Hitachi America, Ltd. | Engine and emission monitoring and control system utilizing gas sensors |
US5456233A (en) | 1993-04-28 | 1995-10-10 | Robert Bosch Gmbh | Fuel injection arrangement for internal combustion engines |
US5465701A (en) | 1993-12-27 | 1995-11-14 | Hitachi America, Ltd. | Internal combustion fuel control system |
JPH07293390A (en) | 1994-04-21 | 1995-11-07 | Robert Bosch Gmbh | Fuel injection device |
US5520151A (en) | 1994-04-21 | 1996-05-28 | Robert Bosch Gmbh | Fuel injection device |
US5529035A (en) | 1994-11-08 | 1996-06-25 | Hitachi America, Ltd. | Cold start fuel injector with heater |
US5598826A (en) | 1994-12-27 | 1997-02-04 | Hitachi America, Ltd. | Cold start fuel control system for an internal combustion engine |
US5482023A (en) | 1994-12-27 | 1996-01-09 | Hitachi America, Ltd., Research And Development Division | Cold start fuel control system |
US5535724A (en) | 1995-08-23 | 1996-07-16 | Davco Manufacturing L.L.C. | Fuel pulsation dampener |
US5630400A (en) | 1995-10-17 | 1997-05-20 | Mitsubishi Denki Kabushiki Kaisha | Fuel injection valve for an internal combustion engine |
JPH1030521A (en) | 1996-07-12 | 1998-02-03 | Denso Corp | Fuel injector |
US5894832A (en) | 1996-07-12 | 1999-04-20 | Hitachi America, Ltd., Research And Development Division | Cold start engine control apparatus and method |
US6050236A (en) | 1997-05-28 | 2000-04-18 | Nissan Motor Co., Ltd. | Covering device for an internal combustion engine |
US5806494A (en) | 1997-08-06 | 1998-09-15 | Caterpillar Inc. | Hydraulically actuated fuel injection system with integrated actuation fluid rail and injectors |
JP2001502033A (en) | 1997-08-06 | 2001-02-13 | キャタピラー インコーポレイテッド | Hydraulically actuated fuel injection system with integrated working fluid rail and injector |
US5909725A (en) | 1997-09-12 | 1999-06-08 | Siemens Canada Limited | Automotive emission control valve retaining clip and mounting method |
JPH11270430A (en) | 1998-03-25 | 1999-10-05 | Sanshin Ind Co Ltd | Cylinder fuel injection type engine |
US6213096B1 (en) | 1998-03-25 | 2001-04-10 | Sanshin Kogyo Kabushiki Kaisha | Fuel supply for direct injected engine |
US6604512B2 (en) | 1998-05-13 | 2003-08-12 | Yamaha Marine Kabushiki Kaisha | Fuel supply for direct injected engine |
US6053149A (en) | 1998-05-28 | 2000-04-25 | Siemens Automotive Corporation | Fuel injector clip retention arrangement |
US6401691B1 (en) | 1998-10-22 | 2002-06-11 | Nippon Soken, Inc. | Fuel supply system for relieving fuel pressure pulsations and designing method thereof |
US5970953A (en) | 1999-01-12 | 1999-10-26 | Siemens Automotive Corporation | High pressure injector clip |
US6427667B1 (en) | 1999-05-27 | 2002-08-06 | Sanshin Kogyo Kabushiki Kaisha | Fuel injector mounting arrangement |
US6109247A (en) | 1999-09-21 | 2000-08-29 | Hitachi America, Ltd. | Heater for a cold start fuel injector |
US6279549B1 (en) | 1999-09-21 | 2001-08-28 | Hitachi America, Ltd. | Heater for a cold start fuel injector |
US6494186B1 (en) | 1999-09-30 | 2002-12-17 | Siemens Vdo Automotive Corporation | Integral engine control sensor |
US6314943B1 (en) | 1999-10-22 | 2001-11-13 | Ford Global Technologies, Inc. | Fuel supply rail with integrated fuel injector load spring |
JP2001132576A (en) | 1999-11-10 | 2001-05-15 | Sanoh Industrial Co Ltd | Fuel supply device for engine |
US6666189B1 (en) | 1999-11-10 | 2003-12-23 | Sanoh Kogyo Kabushiki Kaisha | Fuel feed device of engine |
US6543421B2 (en) | 2000-03-21 | 2003-04-08 | Siemens Automotive Corporation | Fuel injector assembly for mounting a fuel injector to a fuel rail and permitting alignment of the fuel injector |
US6276339B1 (en) | 2000-05-02 | 2001-08-21 | Delphi Technologies, Inc. | Fuel injector spring clip assembly |
US6698400B2 (en) | 2000-06-30 | 2004-03-02 | Fev Motorentechnik Gmbh | Piston internal combustion engine comprising a deflection-resistant cross brace for sealingly fixing fuel injection |
US6901913B1 (en) | 2001-07-16 | 2005-06-07 | Usui Kokusai Sangyo Kaisha Ltd. | Fuel pressure pulsation suppressing system |
US6745798B2 (en) | 2001-09-06 | 2004-06-08 | Siemens Vdo Automotive Corporation | Apparatus, system, and method for reducing pressure pulsations and attenuating noise transmission in a fuel system |
US6609898B1 (en) | 2001-10-01 | 2003-08-26 | Putzmeister Inc. | Process and device for pumping compressible materials with reduced pressure pulsation |
US6871634B2 (en) | 2001-11-30 | 2005-03-29 | Robert Bosch Gmbh | Fuel injection system |
US6918383B2 (en) | 2002-03-08 | 2005-07-19 | Hitachi, Ltd. | Fuel control system |
US6843238B2 (en) | 2002-03-08 | 2005-01-18 | Hitachi, Ltd. | Cold start fuel control system |
US6705292B2 (en) | 2002-04-02 | 2004-03-16 | Siemens Vdo Automotive Corporation | Apparatus and method of connecting a fuel injector and a fuel rail |
US20030183200A1 (en) | 2002-04-02 | 2003-10-02 | Siemens Vdo Automotive Corporation | Apparatus and method of connecting a fuel injector and a fuel rail |
JP2004028053A (en) | 2002-06-28 | 2004-01-29 | Denso Corp | Fuel feeder and method for assembling the same |
US6874478B2 (en) | 2002-06-28 | 2005-04-05 | Denso Corporation | Fuel supply unit and assembling method thereof |
US6874467B2 (en) | 2002-08-07 | 2005-04-05 | Hitachi, Ltd. | Fuel delivery system for an internal combustion engine |
US6807944B2 (en) | 2002-10-09 | 2004-10-26 | Usui Kokusai Sangyo Kaisha, Ltd. | Method and apparatus for attenuating pressure pulsation in opposed engines |
US6640784B1 (en) | 2002-10-09 | 2003-11-04 | Robert Bosch Corporation | Spark ignition direct injection system |
US6904894B2 (en) | 2002-10-18 | 2005-06-14 | Usui Kokusai Sangyo Kaisha Ltd. | Pulsation reducing system for fuel line |
US6736103B2 (en) | 2002-10-21 | 2004-05-18 | Hitachi Ltd. | System for management of fuel in a cold start fuel passageway |
JP2004239124A (en) | 2003-02-05 | 2004-08-26 | Hitachi Ltd | Fuel injection valve and cylinder injection engine |
US7017556B2 (en) | 2003-07-22 | 2006-03-28 | Hitachi, Ltd. | Engine start fuel control system |
US7007667B2 (en) | 2003-07-22 | 2006-03-07 | Hitachi, Ltd. | Cold start fuel control system |
US6925989B2 (en) | 2003-08-18 | 2005-08-09 | Visteon Global Technologies, Inc. | Fuel system having pressure pulsation damping |
US7261089B2 (en) | 2003-08-18 | 2007-08-28 | Robert Bosch Gmbh | Fuel injector nozzle seal |
JP2005147075A (en) | 2003-11-19 | 2005-06-09 | Usui Kokusai Sangyo Kaisha Ltd | Fuel delivery pipe |
JP2005163627A (en) | 2003-12-02 | 2005-06-23 | Mitsubishi Electric Corp | Fuel injection valve device |
US20050161025A1 (en) | 2004-01-27 | 2005-07-28 | Delphi Technologies, Inc. | Anti-rotation fuel injector clip |
US6830037B1 (en) | 2004-01-27 | 2004-12-14 | Delphi Technologies, Inc. | Anti-rotation fuel injector clip |
JP2005226489A (en) | 2004-02-10 | 2005-08-25 | Denso Corp | Fuel supply device |
US6948479B1 (en) | 2004-09-01 | 2005-09-27 | Delphi Technologies, Inc. | Inline pulsation damper system |
EP1637729A1 (en) | 2004-09-16 | 2006-03-22 | Nissan Motor Co., Ltd. | Support structure of fuel injector |
US20060065245A1 (en) * | 2004-09-16 | 2006-03-30 | Nissan Motor Co., Ltd. | Support structure of fuel injector |
DE102004049277A1 (en) | 2004-10-09 | 2006-04-13 | Robert Bosch Gmbh | Damping element for a fuel injection valve |
US20090071445A1 (en) | 2004-10-09 | 2009-03-19 | Martin Mueller | Damping element for a fuel injection valve |
US20060118091A1 (en) | 2004-12-03 | 2006-06-08 | Zdroik Michael J | Fuel injector retention clip |
WO2006092427A1 (en) | 2005-03-03 | 2006-09-08 | Robert Bosch Gmbh | Fuel injection device |
US20080302336A1 (en) | 2005-03-03 | 2008-12-11 | Thomas Fuerst | Fuel Injection Valve |
US20070064403A1 (en) | 2005-09-19 | 2007-03-22 | Harsha Badarinarayan | Housing for an electronic circuit |
US7293550B2 (en) | 2006-01-31 | 2007-11-13 | Gm Global Technology Operations, Inc. | Fuel injector isolation seat |
Non-Patent Citations (2)
Title |
---|
European Search Report dated Sep. 7, 2009. |
Japanese Office Action dated Dec. 28, 2010 (Five (5) pages). |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110186016A1 (en) * | 2008-05-30 | 2011-08-04 | Thilo Bolz | Hold-down device for a fuel injection device |
US8707930B2 (en) * | 2008-05-30 | 2014-04-29 | Robert Bosch Gmbh | Hold-down device for a fuel injection device |
US20120204837A1 (en) * | 2011-02-16 | 2012-08-16 | Hitachi Automotive Systems Americas Inc. | Fuel injector assembly |
US8739763B2 (en) * | 2011-02-16 | 2014-06-03 | Hitachi Automotive Systems Americas Inc. | Fuel injector assembly |
Also Published As
Publication number | Publication date |
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JP5320454B2 (en) | 2013-10-23 |
EP1978240A3 (en) | 2009-10-07 |
ATE516437T1 (en) | 2011-07-15 |
JP5275387B2 (en) | 2013-08-28 |
JP2013199943A (en) | 2013-10-03 |
JP2011099456A (en) | 2011-05-19 |
JP2008255983A (en) | 2008-10-23 |
JP4890482B2 (en) | 2012-03-07 |
US7406946B1 (en) | 2008-08-05 |
EP2333305A3 (en) | 2013-07-31 |
EP1978240B1 (en) | 2011-07-13 |
EP2333305B1 (en) | 2018-02-28 |
JP2012052556A (en) | 2012-03-15 |
EP1978240A2 (en) | 2008-10-08 |
EP2333305A2 (en) | 2011-06-15 |
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