CN106257043A - Protection structure for the parts of engine fuel supply system - Google Patents
Protection structure for the parts of engine fuel supply system Download PDFInfo
- Publication number
- CN106257043A CN106257043A CN201610392434.XA CN201610392434A CN106257043A CN 106257043 A CN106257043 A CN 106257043A CN 201610392434 A CN201610392434 A CN 201610392434A CN 106257043 A CN106257043 A CN 106257043A
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- China
- Prior art keywords
- protector
- housing
- protection structure
- parts
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000000446 fuel Substances 0.000 title claims abstract description 89
- 230000001012 protector Effects 0.000 claims abstract description 82
- 210000003141 lower extremity Anatomy 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/01—Arrangement of fuel conduits
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Fuel-Injection Apparatus (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a kind of protector (8), comprising: main wall (80), this main wall (80) covers the parts of fuel feed system from the input direction (load input direction) of impact load (F)；Fastening part (block portion (83)), this fastening part is fastened to housing (5), and this fastening part is arranged on the first side on any direction (orthogonal direction) orthogonal with load input direction；And end sections (bottom (82d) of right side wall (82)), on second side different from the first side that this end sections is positioned on this orthogonal direction, this end sections is set to the relatively heavy section (flange part (50)) of close housing (5) and has predetermined gap relative to this relatively heavy section.End sections (82d) is connected to when impact load (F) is transfused on the relatively heavy section of housing (5) to bear impact load (F) together with fastening part.
Description
Technical field
The present invention relates to a kind of petrolift being provided with the electromotor that protector is such as arranged in vehicle with protection and combustion
The parts of the fuel feed system of pipe material etc are from the protection structure of impact load.
Background technology
It is commonly used for being arranged on peace routinely from fuel tank the supply petrolift of fuel, fuel channel, fuel filter etc.
It is loaded in the electromotor in vehicle.In the above-mentioned parts of fuel feed system, be in the state that is arranged in vehicle and car
Parts that structural elements front is adjacent or rear is adjacent are provided with protector, in order to will not touch with these vehicular structural member
Hit, even if being also such in the case of moving when electromotor is in vehicle collision.
Such as, Japanese Patent Application No.2014-101807 discloses a kind of following structure: this structural defence is arranged
To the high pressure fuel pump of housing of electromotor from the impact of the vehicle structural members being positioned at this pump rear.Specifically, same
In Fig. 6 of document, protection component (protector) is arranged between high pressure fuel pump and vehicle structural members with by protection component
Body wall cover high pressure fuel pump from high pressure fuel pump rear, and from prominent the consolidating in bottom of the entity plate of protection component
Locking member is fastened by bolts to housing.
But, in the structure shown here, such as what Fig. 6 of same document schematically showed, if the body wall of protection component
Insufficient rigidity, born the body wall of impact load using around the fixture as fulcrum of bottom closer to high pressure
The mode of petrolift deforms.High pressure fuel pump may be caused damage by the interference between high pressure fuel pump and body wall.
Meanwhile, in the structure disclosed in Fig. 2 of same document, high pressure fuel pump is also by for consolidating protection component
Locking member is fastened to the identical bolt of housing and is fastened to housing.This configuration allows to make protection component with high when impact load is applied in
Pressurized fuel pump departs from together from housing, thus can effectively suppress the protection component that deforms because of impact load and high compression ignition
The interference of material pump.
But, in the structure disclosed in Fig. 2 of JP 2014-101807A waits, it is not necessary to worry when bearing impact load
High pressure fuel pump is caused damage by the protection component of deformation, but high pressure fuel pump is de-from housing together with this protection component
From, and thus, the pipeline being connected to high pressure fuel pump is likely to be broken；Therefore, it is difficult to say that this configuration protects combustion fully
The parts of material feed system.
Summary of the invention
In view of the above problems, the invention provides a kind of following structure: this structure is abundant by protector (protection component)
Protect the parts of fuel feed system of such as high pressure fuel pump etc, and do not make parts separate with the housing of electromotor,
Even if being also such bear load when vehicle collision in the case of.
A viewpoint according to the present invention, is modified to provide a kind of for sending out relative to the structure of housing supporting and protecting device
Even if motivation fuel feed system in the case of bearing impact load, still be able to suppression with engine fuel supply system
The protection structure of the interference of parts.Specifically, tie according to the protection of the parts for engine fuel supply system of the present invention
The theme of structure is a kind of following structure: this structure is configured by protector and is fixed to electromotor to protect fuel feed system
The parts of housing.
Protector includes: main wall, fastening part and end sections.From the input direction of impact load, (load inputs this main wall
Direction) cover fuel feed system parts.The fastening part on the first side being positioned on orthogonal direction is fastened to housing, described just
Handing over direction is any direction orthogonal with load input direction.On second side different from the first side being positioned on orthogonal direction
End sections is set to that the relatively heavy section of close housing is to have predetermined gap between end sections and relatively heavy section.Protector
It is configured so that end sections is connected to when impact load is transfused on the relatively heavy section of housing to bear together with fastening part
Impact load.
Generally, the housing of electromotor has relatively heavy section and relatively thinner wall section；Therefore, compare meansigma methods to have more
The part of big thickness or be provided with the part of flank etc. for example, it can be set to become " the relatively heavy section of housing "." relatively heavy section "
And the predetermined gap between the end sections of protector can be set to be enough to keep protector not contact, i.e. with " relatively heavy section "
Making also is such in the case of protector vibrates due to the vibration of electromotor.
By said structure, protector is placed in cantilever position, in cantilever position, is arranged on the predetermined direction of protector
On the first side on fastening part be fastened to housing, and the end sections of protector is configured to free end, therefore, in protection
In the case of device vibrates due to the vibration of electromotor, the vibration amplitude of end portion office may become bigger.In order to deal with this
Kind of situation, is provided with predetermined gap at end sections and housing between the relatively heavy section of this end sections, thus fully
Inhibit the contacting and produce abnormal making an uproar between the relatively heavy section of this end sections due to end sections and housing
Sound etc..
Move when electromotor is in vehicle collision and in the case of impact load is input to the main wall of protector, protection
Device is supported on the direction (orthogonal direction) orthogonal with the input direction of impact load by being fastened to the fastening part of housing
The first side on, and the end sections being positioned on the second side different from the first side is connected on the relatively heavy section of housing and by
The relatively heavy section supporting of housing.Specifically, protector be securely supported on the direction orthogonal with load input direction one
On side and opposite side, thus the parts of supporting fuel feed system fully.
In above-mentioned protection structure, orthogonal direction can be vertical direction, the fastening being arranged in the upper part of protector
Portion can be fastened to the upper part of housing, compared with heavy section can be along housing periphery arrange and be fastened to the convex of cylinder head
Edge.Bottom can be set near flange, and described bottom is the end sections of protector.According to this protection structure, can
To improve the support stiffness of the bottom of protector fully.It addition, the upper part (fastening part) of protector is fastened to housing
The operation of upper part become relatively easy.
In above-mentioned protection structure, the lower part of the main wall of protector tilts in the way of being drifted apart from housing.According to
This protection structure, impact load may be input to the lower part of main wall, and bear the protector of this impact load
Fastening part in the upper part of protector pivots downwards.The bottom that therefore, it can make protector is more firmly connected to gas
On the flange of cylinder cap, and as the aforementioned can supporting and protecting device securely, thus stably obtain protection fuel feed system
The effect of parts.
In above-mentioned protection structure, protector can include from the left side of main wall and right side towards along load input direction
The sidewall that the housing being positioned at during observation on the rear side of protector extends, and protector is permissible when observing above electromotor
It is shaped generally as U-shape.According to this protection structure, protection is arranged on the protector of the shape that takes the shape of the letter U time viewed from above
The space of parts of fuel feed system of inside become easier to, even and if in the case of impact load is transfused to still
This space is allowed to be left.
In above-mentioned protection structure, the part being provided with the upper part from housing in the upper part of housing raises up
Oil eliminator in the case of, the parts of fuel feed system can be arranged on the lateral position of oil eliminator.There is guarantor
Protecting in the left side wall of device and the protection structure of right side wall, the fastening part of the upper part of a sidewall can be fastened to oil eliminator
Upper part.By this configuration, it is possible to use the horizontal space of oil eliminator with preventing portion part from the side that extends, excessive engine ground
Formula arranges the big parts of such as high pressure fuel pump etc.
In above-mentioned protection structure, for the fastening part of a sidewall in the left side wall of protector and right side wall is fastened
Insert to the bolt of upper part of oil eliminator and be screwed to along the bolt hole of boss that arranges along the sidewall of oil eliminator.According to
This protection structure, bolt is set along the sidewall of oil eliminator, and it is convex that this makes it is easier to guarantee to be arranged in bolt hole
The rigidity of platform, and make beneficially to improve the support stiffness of the fastening part of a sidewall.
Additionally, in above-mentioned protection structure, the upper part of another sidewall being positioned in the left side wall of protector and right side wall
On fastening part can be fastened to the upper part of support of parts of inlet/exhaust system of electromotor, and support can be tight
Gu to cylinder head.Such as, the support being made up of foundry goods is fastened to cylinder head, thus improves fully and to be fastened to the another of this support
The support stiffness of the fastening part of one sidewall.The bottom of another sidewall can be set near support, and bottom with
Predetermined gap can be provided with between frame.According to this protection structure, the bottom of opposite side wall can be made to be connected on support
To be supported securely when impact load inputs, substantially simultaneously suppress the such as exception caused due to the vibration of electromotor
The inconvenience of noise etc.
The protection structure of the parts for engine fuel supply system according to the present invention, although by the guarantor of guard block
Protect device to be fixed to the simple structure of housing and be in cantilever position, but protector when vehicle collision can protector with
Supported securely at the first side on direction (orthogonal direction) that impact load input direction is orthogonal and the second side.Therefore, may be used
Effectively to suppress the interference between the parts of fuel feed system and protector with housing while preventing parts from separating, from
And promote and parts are adequately protected.
Accompanying drawing explanation
By below in reference to accompanying drawing to feature, advantage and the technical meaning of the illustrative embodiments of the present invention and industry
Meaning is described, and in the accompanying drawings, identical reference represents identical element, and wherein:
Fig. 1 is the view of the main body of the electromotor according to the embodiment of the present invention time viewed from above；
Fig. 2 is the view of the cylinder head etc. of the electromotor when observing from the rear of vehicle；
Fig. 3 is the amplification stereogram being protected fuel under high pressure pump structure by protector；
Fig. 4 is the sectional view of the fixed structure of the right side wall of the protector of the line IV-IV intercepting along Fig. 1；And
Fig. 5 is the sectional view of the fixed structure of the left side wall of the protector of the line V-V intercepting along Fig. 1.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings embodiments of the present invention are described.In embodiments, by description
It is, the guard block of the fuel feed system of electromotor that the present invention is applied to be arranged in the vehicle of such as automobile etc
Structure.
Fig. 1 is the view of the main body of the electromotor 1 according to present embodiment time viewed from above, and electromotor 1
It is to include being in line the in-line four cylinder petrol engine of four cylinder C (being illustrated by the broken lines) of alignment as example.Such as institute in Fig. 2
Showing, the main-body structure of this electromotor 1 becomes to make cylinder head be assembled to cylinder block 2 that (part for its external shape is by imaginary line table
Show) upper part, and cylinder head includes lid body 3 and the cam keeper 4 being assembled on lid body 3.At cam keeper 4
On be assembled with housing 5, and the flange 50 being formed at around the periphery of housing 5 has spaced some positions in circumferential direction
Place is fastened to housing 5.
As example, the engine room 100 being wherein equipped with electromotor 1 is arranged on the anterior office of vehicle, and longitudinal
The side member 101 (in FIG, only being illustrated right-hand member by imaginary line) extended is arranged on right side and the left side of engine room 100
On.As shown in FIG., electromotor 1 is supported to right-hand member 101 by engine foundation 102 in the way of vibration isolation.Although not at figure
Shown in, but the variator being affixed to the left side of electromotor 1 is supported in the way of vibration isolation by left-side member (left side of Fig. 1).
Specifically, in the present embodiment, electromotor 1 is arranged so that the crank axle of electromotor 1 in the vehicle width direction
Extend, and electromotor 1 is integral with variator and is transversely mounted in engine room 100；And shroud upper panel 103 is positioned at car
The rear of the electromotor 1 in, described shroud upper panel is a vehicle structural members in described vehicle structural members.Shroud upper panel
103 upper parts defining front panel (not shown) engine room 100 and vehicle interior separated.The longitudinal direction of vehicle (front and
Afterwards) direction and left and right directions are hereinafter referred to simply as longitudinal direction (front and rear) direction and horizontal (left and right) direction.
Electromotor 1 is structured to inject fuel directly into the direct injection engine in each cylinder C, and fuel
The parts of feed system 6 are mainly disposed on air inlet (afterwards) side.Specifically, as shown in Figure 2, when observing from rear position,
Open wide with the top half of the corresponding air inlet 31 corresponding for cylinder C sidewall 30 in the air inlet side of lid body 3, and
The ejector 60 of correspondence it is provided with below corresponding air inlet.It is disposed across four for distributing the fuel tube 61 of fuel
Individual ejector 60 straight-line extension in transverse direction.Fuel tube 61 is covered by unshowned inlet manifold.
The bottom of fuel under high pressure pipeline 62 is connected to the left part of fuel tube 61.As shown in fig. 1, high compression ignition
The upper end of pipe material 62 is connected to high pressure fuel pump 63.The upper end of fuel under high pressure pipeline 62 will pump from high pressure fuel pump 63
Fuel under high pressure be supplied in fuel tube 61.Fuel feeding duct 64 and fuel it is provided with near high pressure fuel pump 63
Return duct 65.Fuel feeding duct 64 supplies fuel from unshowned fuel tank.Fuel return line 65 discharges from high compression ignition
Expect a part of fuel of pump 63 discharge and make this fuel be back to fuel tank.
In the present embodiment, high pressure fuel pump 63 is arranged in the upper part of housing 5；Although and showing the most in the drawings
Go out, but the plunger extending through housing 5 is configured in air inlet side by arranging the actuated by cams to camshaft.Specifically, as
Shown in Fig. 1, high pressure fuel pump 63 is disposed adjacently the 4th cylinder C's in the leftmost position being positioned at four cylinder C
In the air inlet side of lighter 11.
Specifically, be respectively arranged with at the anterior position in the upper part of housing 5 and rear position oil eliminator 51,
52, each oil eliminator in oil eliminator 51,52 is protruding from the upper surface of housing 5 in the way of extending in transverse direction
(rising)；And four lighters 11 are in line setting between oil eliminator 51 and oil eliminator 52 in left-right direction.Position
Oil eliminator 51 at anterior position is configured to relatively to be long enough to extend substantially across three cylinder C, and alters in order to making
Cylinder gaseous mixture is back to the flexible pipe 12 of gas handling system and is connected to the left part of oil eliminator 51.
Meanwhile, the oil eliminator 52 being located behind position is configured to extend across two centrally located cylinder C, and
And the position at slightly rear, the center away from these cylinders is provided with Pcv valve 13.Oil eliminator 52 is than located anteriorly position
The convex get Geng Gao of oil eliminator 51.High pressure fuel pump 63 is disposed adjacently the left at oil eliminator 52.This means high compression ignition
Material pump 63 is arranged in the space at position and rear position to the left in the upper part of housing 5.This position makes high pressure fuel pump
63 will not exceedingly raise up, and will not exceedingly prolong backward from electromotor 1 (being oil eliminator 51 in this case)
Stretch.
It addition, EGR valve 70 and the high pressure fuel pump 63 being arranged on position to the left in the upper part of housing 5 are adjacent to set
Put, and EGR valve 70 is fixed to cam keeper 4 by EGR support 71.Specifically, the electromotor 1 of present embodiment is provided with
EGR device 7, EGR device 7 in order to make a part of waste gas be back to gas handling system so that waste gas recirculation.EGR valve 70 is by order to adjust
The electromagnetic valve of the flow rate (flow rate of EGR gas) saving waste gas to be recycled is constituted.
As shown in Figures 1 and 2, EGR device 7 is connected to unshowned exhaust manifold, and includes that water-cooled EGR cools down
Device 73 and in order to discharge the EGR conduit 72 of a part of waste gas from manifold, and EGR device 7 is via the EGR conduit in suction side
Waste gas is recycled to inlet manifold from the EGR valve 70 being connected above at cooler for recycled exhaust gas 73 by 74.The EGR that EGR valve 70 is fixed to
Support 71 is formed by casting, in order to be formed as complicated shape as shown in Figure 5, and EGR support 71 is in multiple positions
Place is fastened to cam keeper 4.
Hereinafter the protection structure being used for high pressure fuel pump will be described.As it was previously stated, high pressure fuel pump 63 exists
The upper part of the housing 5 of electromotor 1 is arranged at rear position, and the shroud upper panel 103 of vehicle body is as shown in Figure 1
It is positioned at the rear of high pressure fuel pump 63.It thus provides a kind of protector 8 being made of metal, in order to not at high pressure fuel pump
63 and high pressure fuel pump 63 near fuel channel (fuel under high pressure pipeline 62, fuel feeding duct 64 and fuel return line 65)
On directly bear impact load, even if being also such in the case of being moved rearwards by when electromotor 1 is in vehicle collision.
As shown in the Fig. 3 to Fig. 5 in addition to Fig. 1 and Fig. 2, protector 8 includes main wall 80 and sidewall 81,82, wherein,
Main wall 80 covers high pressure fuel pump 63 from rear direction, and described rear direction is input direction (the load input side of impact load F
To)；Sidewall 81,82 extends forward from the left side of main wall 80 and right side (by the way of housing 5) respectively；And protector
8 are shaped generally as U-shape in the case of the most viewed from above.Protector 8 is such as by by forcing press
Etc. (press) the slab component being formed from steel is curved shaping and is formed, and the left side of main wall 80 and right side are by suitably
Ground bending is also continuously connected to sidewall 81 and sidewall 82 respectively.
As from Fig. 4 and Fig. 5 it is readily apparent that main wall 80 is positioned to more backward (that is, under with the lower part of protector 8
Part be drifted apart from housing 5) mode tilt.Two sidewalls 81,82 extended forward from the left side of main wall 80 and right side exist
These sidewalls are positioned to more downward when extending forward, say, that two sides extended forward from the left side of main wall 80 and right side
Wall 81,82 diagonally under direction extend obliquely.As by the contrast between Fig. 4 and Fig. 5 it is readily apparent that right side wall
82 extend longer and to position more forward compared with left side wall 81, and the bottom 82d of right side wall 82 extend to by
Near flange (the most relatively heavy section) 50 followed by the housing 5 described.
Utilize shown by reference in only at Fig. 3 to Fig. 5, for the purpose of raising rigidity, the top of main wall 80
Edge and lower limb are respectively arranged with flange 80a, the 80b by making corresponding top edge and lower limb be bent outwardly and be formed.Tool
Body ground, the flange 80b being positioned at lower limb is continuously connected to arrange the corresponding lower limb to left side wall 81 and right side wall 82
Flange 81a, 82a.It addition, the right hand edge of the left hand edge of left side wall 81 and right side wall 82 is respectively arranged with by making the corresponding left side
Flange 81b, 82b that edge and right hand edge bend backward and formed, and the corresponding bottom at edge is continuously connected in bag
Flange 81a, 82a of lower limb of form.By this configuration, the rigidity of whole protector 8 can be improved.
Especially, the right side wall 82 (sidewall) of protector 8 is provided with bulge 82c, and this bulge 82c is at right side wall
Outwards (such as, bulging to the right), and flange 82a extends along the lower limb of this bulge 82c and enclose on the longitudinal direction of 82
Lower limb around bulging 82c.The block portion 83 of rectangular shaped is formed as the leading section (right part Fig. 4) from right side wall 82
Upper end extends, and block portion 83 covers in the upper part of the oil eliminator 52 at the rear position being positioned at housing 5, and block
Portion 83 is fastened to housing 5 by bolt 84.
Specifically, as shown in Figure 4, the bolt hole 83a approximate centre in block portion 83 opens wide, and inserts through this opening
The axle portion 84a of the bolt 84 entered inserts and in the bolt hole 52b of the boss 52a that is screwed to oil eliminator 52, described piece of portion is tight
Gu portion.Left side wall and right side wall at oil eliminator 52 are continuously connected to corner each other, and boss 52a is formed as vertically
On be long enough to along these sidewalls inner surface extend；Thus the rigidity of oil eliminator 52 becomes high.Therefore, it can fully
Ground improves the support stiffness in the block portion 83 of the right side wall 82 in boss 52a.
The block portion 83 of upper end arranged to right side wall 82 is fastened to the upper part of oil eliminator 52, and right side wall 82
Bottom 82d is arranged close to the flange 50 of housing 5 as previously mentioned, and as shown in Figure 4 at bottom 82d and flange
Predetermined gap d it is formed with between 50.Being sized to of this gap d be enough to prevent bottom 82d and the housing 5 of right side wall 82
The flange 50 of bottom 82d of close right side wall 82 contact (such as, the most several millimeters), even if at protector 8 due to electromotor 1
Vibration and be also such in the case of vibrating.
In this way, the right side wall 82 (the block portion 83 of upper end) of protector 8 is fixed to housing 5 (oil eliminator
The upper part of 52)；Meanwhile, the left side wall 81 (another sidewall) of protector 8 is fixed to cam keeper 4 via EGR support 71.Tool
Body ground, as shown in Figure 5, is formed from left side as right side wall 82 at leading section (left part of Fig. 5) place of left side wall 81
The block portion 85 of the rectangular shaped that the upper end of wall 81 extends, and block portion 85 covers in the upper part of EGR support 71 and leads to
Cross bolt 86 and be fastened to the upper part of EGR support 71.
As it was previously stated, EGR support 71 is made up of the foundry goods with high rigidity, and EGR support 71 is tight in some positions
Gu to cam keeper 4, and thus the block portion 85 of the upper part being fastened to EGR support 71 of left side wall 81 has sufficiently high
Support stiffness.Meanwhile, the bottom 81c of left side wall 81 is set to and (illustrate only attached in Fig. 5 near the rear wall 71a of EGR support 71
Figure labelling), and being sized to and the lower end of right side wall 82 of gap d formed between bottom 81c and rear wall 71a
Aforementioned gap between portion 82d and the flange 50 of housing 5 is roughly the same.
As it was previously stated, in order to protect the protector 8 of high pressure fuel pump 63 to be configured so that the block of upper end of left side wall 81
The block portion 83 of the upper end of portion 85 and right side wall 82 is fastened to respective members (EGR support 71 and housing 5 separating of oil of electromotor
Device 52), and the bottom 81c of sidewall 81 is individually set into free end with the bottom 82d of sidewall 82.This means protection
On the device 8 side in the vertical direction (orthogonal direction) orthogonal with longitudinal direction, supporting is in cantilever position, described longitudinal direction side
To for load input direction.
Therefore, the fixing of protector 8 can be only by completing from top two bolts 84,86 of fastening, and this contributes to protecting
Protect the fixing operation of device 8.When protector 8 vibrates due to the vibration of electromotor 1, the bottom 81c of left side wall 81 and right side
Vibration amplitude at the bottom 82c of wall 82 becomes big, but in these lower end 81c, 82d with near these bottoms 81c,
Provide preferred gap d between the component (flange 50 of EGR support 71 and housing 5) of 82d, thus suppressed sufficiently due under
End 81c, 82d and contacting and produce abnormal noise etc. between the component of these bottoms 81c, 82d.
Being moved rearwards by when electromotor 1 is in vehicle collision and time protector 8 collides with shroud upper panel 103, impact load F is such as
By on the main wall 80 acting on protector 8 shown in the corresponding arrow in Fig. 3 to Fig. 5.Main wall 80 is angled such that its underpart
It is positioned to more backward, and the lower limb (the flange 80b of lower limb) being positioned at position the most backward of main wall 80 compares left side
The block portion 83 of the block portion 85 of the upper end of wall 81 and the upper end of right side wall 82 is positioned to lower；Therefore, protector 8 constructs
The block portion 83,85 in the upper part of protector 8 when impact load F is transfused to is become to pivot downwards.
Thus, the bottom 81c of the left side wall 81 and bottom 82d of right side wall 82 is connected to EGR support 71 and housing 5
On flange 50, thus supporting and protecting device 8；And the block portion of the upper end of the block portion 85 of the upper end of left side wall 81 and right side wall 82
83 are fastened to EGR support 71 and housing 5 respectively, thus in two ends of protector 8 along being orthogonal to the vertical of impact load F
Direction supporting and protecting device 8 securely.
The protector 8 supported securely in the above described manner stops impact load F to be applied to high pressure fuel pump 63 and all
On the fuel channel of fuel under high pressure pipeline 62 etc, even and if in the case of protector 8 bears impact load F, have
The protector 8 of high rigidity does not has the biggest deformation yet.Even if becoming at the main wall 80 of protector 8 and left side wall 81 and right side wall 82
Shape to a certain extent in the case of, still can protector 8 by these elements around inner side in leave some spaces, thus
Suppression and the interference of high pressure fuel pump 63 grade.
Hereinafter other embodiments of the present invention will be described.Aforementioned embodiments is only exemplified, and this
It is not intended to limit the configuration of the present invention, application etc..In the above-described embodiment, it has been described that by using protector 8 to protect
Protect the situation of high pressure fuel pump 63 grade, but the invention is not restricted to this, and the present invention such as can be as protection fuel supply
The structure of the miscellaneous part of system, such as fuel filter is applied.
In the above-described embodiment, protector 8 is configured to include the U-shaped protection of main wall 80 and left side wall 81 and right side wall 82
Device, but the invention is not restricted to this；Such as, protector 8 can only include main wall 80, and the upper part of protector 8 is fastened to
The upper part of the oil eliminator 52 of housing 5, the bottom of protector 8 can be arranged close to flange 50.The shape of main wall 80 is not
It is limited to the shape that the lower part being angled such that main wall is drifted apart from housing 5.
It addition, there is no need to be fastened to the upper part of protector 8 upper part of oil eliminator 52, and protector 8 can
To be configured to be fastened to the upper part of protector 8 any part of housing 5.It not the upper part of protector 8 but protector 8
Left side or right side can be fastened to housing 5, and the end sections on opposition side can be set in housing 5 relative
The free end of relatively heavy section (being not limited to flange 50).
In the foregoing embodiment, to be configured so that the upper part of right side wall 82 is fastened to housing 5 (separating of oil for protector 8
The upper part of device 52), and the upper part of left side wall 81 is fastened to EGR support 71, but the present invention is not limited to this structure.Special
Not, left side wall 81 and right side wall 82 can form with inverted configuration, or left side wall 81 and right side wall 82 can all be fastened to lid
Cover 5.Any support of parts for inlet/exhaust system in addition to EGR support 71 can be used.
The present invention is such as in the case of the parts of the fuel feed system of the electromotor being arranged in vehicle for protection
It is favourable, and the present invention creates splendid effect especially as the protection structure for high pressure fuel pump.
Claims (7)
1. being used for a protection structure for the parts of engine fuel supply system, described protection structure is configured by protector
The parts of the housing being fixed to electromotor of described fuel feed system, described protection structure are protected to be characterised by,
Described protector includes:
I) main wall, said major wall covers the described parts of described fuel feed system from load input direction, and described load inputs
Direction is the input direction of impact load；
Ii) fastening part, on the described fastening position the first side on orthogonal direction, described orthogonal direction is for input with described load
Any direction that direction is orthogonal, described fastening part is fastened to described housing；And
Iii) end sections, on second side different from described first side that described end sections is positioned on described orthogonal direction,
Described end sections is arranged close to the relatively heavy section of described housing to have between described end sections and described relatively heavy section
There is predetermined gap, and
Described protector is configured so that described end sections is connected to the institute of described housing when described impact load is transfused to
State on relatively heavy section to bear described impact load together with described fastening part.
The protection structure of the parts for engine fuel supply system the most according to claim 1, described protection structure
It is characterised by,
Described orthogonal direction is vertical direction, and the described fastening part being arranged in the upper part of described protector is fastened to described lid
The upper part of cover, described relatively heavy section is to arrange and be fastened to the flange of cylinder head, and conduct along the periphery of described housing
The bottom of the described end sections of described protector is arranged close to described flange.
The protection structure of the parts for engine fuel supply system the most according to claim 2, described protection structure
It is characterised by,
The lower part of the said major wall of described protector tilts in the way of being drifted apart from described housing.
4., according to the protection structure of the parts for engine fuel supply system described in Claims 2 or 3, described protection is tied
Structure is characterised by,
Described protector includes that the left side from said major wall and right side are positioned at institute towards when observing along described load input direction
State the sidewall that the described housing on the rear side of protector extends, and described protector is being shaped generally as from time observed by top
U-shape.
The protection structure of the parts for engine fuel supply system the most according to claim 4, described protection structure
It is characterised by,
The upper part of described housing is provided with in the way of the part from the described upper part of described housing raises up
Oil eliminator, and it is positioned at the described fastening part in the upper part of a sidewall in the left side wall of described protector and right side wall
It is fastened to the upper part of described oil eliminator.
The protection structure of the parts for engine fuel supply system the most according to claim 5, described protection structure
It is characterised by,
For the described fastening part of the one sidewall in the described left side wall of described protector and described right side wall is fastened
The bolt of described upper part to described oil eliminator inserts and is screwed to the boss of sidewall setting along described oil eliminator
In bolt hole.
7., according to the protection structure of the parts for engine fuel supply system described in claim 5 or 6, described protection is tied
Structure is characterised by,
The fastening part fastening being positioned in the upper part of another sidewall in the described left side wall of described protector and described right side wall
The extremely upper part of the support of the parts of the inlet/exhaust system of described electromotor, described support is fastened to described cylinder head, and
The bottom of another sidewall described is arranged close to described support, wherein, is provided with between described bottom and described support
Predetermined gap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-123606 | 2015-06-19 | ||
| JP2015123606A JP6314917B2 (en) | 2015-06-19 | 2015-06-19 | Protection structure for engine fuel supply system parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106257043A true CN106257043A (en) | 2016-12-28 |
| CN106257043B CN106257043B (en) | 2019-03-12 |
Family
ID=57713593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610392434.XA Expired - Fee Related CN106257043B (en) | 2015-06-19 | 2016-06-06 | The protection structure of component for engine fuel supply system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6314917B2 (en) |
| CN (1) | CN106257043B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383273A (en) * | 2017-08-02 | 2019-02-26 | 铃木株式会社 | The fuel supplies part of internal combustion engine for vehicle protects structure |
| CN109695501A (en) * | 2017-10-23 | 2019-04-30 | 三菱自动车工业株式会社 | The protection structure of fuel system component |
| CN113494399A (en) * | 2020-03-19 | 2021-10-12 | 本田技研工业株式会社 | Protection structure for fuel system component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6685159B2 (en) * | 2016-03-29 | 2020-04-22 | 本田技研工業株式会社 | Fuel pump protection structure |
| JP6748597B2 (en) * | 2017-03-28 | 2020-09-02 | 株式会社Ｓｕｂａｒｕ | Fuel supply device |
| JP6822903B2 (en) * | 2017-06-13 | 2021-01-27 | 愛知機械工業株式会社 | Fuel system protection device and internal combustion engine equipped with it |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106257043B (en) | 2019-03-12 |
| JP6314917B2 (en) | 2018-04-25 |
| JP2017008769A (en) | 2017-01-12 |
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