CN104265535B - The positioner that on a kind of diesel engine, fuel injector is installed - Google Patents
The positioner that on a kind of diesel engine, fuel injector is installed Download PDFInfo
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- CN104265535B CN104265535B CN201410537529.7A CN201410537529A CN104265535B CN 104265535 B CN104265535 B CN 104265535B CN 201410537529 A CN201410537529 A CN 201410537529A CN 104265535 B CN104265535 B CN 104265535B
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- fuel injector
- cross bar
- cylinder head
- injector
- block
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- Fuel-Injection Apparatus (AREA)
Abstract
The positioner that on a kind of diesel engine, fuel injector is installed, including the cylinder head being arranged on cylinder, cylinder head is provided with several fuel injectors, fuel injector forms oil-feed arm, cylinder head is mounted with positioning baffle, positioning baffle is by cross bar, vertical rod and block composition, cross bar forms some vertical rods, the block that the oriented cross bar side of top molding of vertical rod extends, one sidewall of block forms inclined-plane, the oil-feed arm rest of fuel injector is on the inclined-plane of positioning baffle, the two ends of described cross bar form pin-and-hole, alignment pin is plugged in cylinder head through the pin-and-hole of cross bar；Described fuel injector is bolted in cylinder head by injector plate and injector plate.It adopts the positioner of new structure to fasten after fuel injector is positioned again, so that fuel injector setting angle is accurately positioned, facilitates the installation of valve mechanism cover, also solves the risk of the sealing ring place leakage of oil in four holes, valve mechanism cover side simultaneously.
Description
Technical field:
The present invention relates to the technical field of positioner on diesel engine, more specifically to the positioner that fuel injector on a kind of diesel engine is installed.
Background technology:
Two traditional at present valve diesel, by the restriction that inlet and outlet door is arranged, fuel injector is typically off cylinder centerline, certain angle is tilted with cylinder-bore axis, result in the combustor of top land and also must do eccentric design, this is all very unfavorable for the cooling of the formation of gaseous mixture, the tissue of combustion process, the thermic load of piston and cylinder cap ridge area.Fuel injector tilting, also can cause fuel injector each spray orifice ejection oil mass uneven, and incomplete combustion, it is poor to discharge.
Four-valve diesel engine fuel injector central vertical is arranged, makes each spray orifice fuel flow direction essentially identical, and the oil mass of each spray orifice ejection is uniform, and Shu Changdu is equal for oil, and combustor realizes center arrangement.Under given air intake duct swirl ratio, bowl in piston center arrangement can produce maximum eddy current in combustion recess, and forms symmetrical crowded stream, oil gas is made to be sufficiently mixed, reaching abundant burning, thus reducing the economy that noxious emission generates and improves diesel engine, improving the dynamic property of diesel engine.The oily stream of injector orifice being made to trend towards equalization additionally, fuel injector is arranged vertically, every oily Shu Douneng is close to the air of equivalent, and therefore, the temperature during every oil bundle burning also can keep identical and close to optimum.
From development angle, four-valve diesel engine replaces two traditional valve diesel has become necessary development trend, and adopting Four-valve technology is the development of Design Technology for Diesels thought, is also user's result that diesel engine performance requirement is improved day by day.
But adopting Four valve structure, fuel injector central vertical cloth to postpone, fuel injector has to all hide in inlet casing housing, and the oil-feed arm of fuel injector, through the hole of valve mechanism cover side, is connected with high-pressure oil pipe.If four fuel injector angles are installed not in place, after waiting fuel injector fixing, valve mechanism cover cannot be installed；Or four fuel injector setting angle slightly deviations, after valve mechanism cover installs, diesel engine is in running, and just there is the risk of leakage of oil at the sealing ring place in four holes, valve mechanism cover side.
Summary of the invention:
The purpose of the present invention is aiming at the deficiency of prior art, and the positioner that on a kind of diesel engine, fuel injector is installed is provided, make fuel injector setting angle be accurately positioned, facilitate the installation of valve mechanism cover, also solve the risk of the sealing ring place leakage of oil in four holes, valve mechanism cover side simultaneously.
The technology solution of the present invention is as follows:
The positioner that on a kind of diesel engine, fuel injector is installed, including the cylinder head being arranged on cylinder, cylinder head is provided with several fuel injectors, fuel injector forms oil-feed arm, cylinder head is mounted with positioning baffle, positioning baffle is by cross bar, vertical rod and block composition, cross bar forms some vertical rods, the block that the oriented cross bar side of top molding of vertical rod extends, one sidewall of block forms inclined-plane, the oil-feed arm rest of fuel injector is on the inclined-plane of positioning baffle, the two ends of described cross bar form pin-and-hole, alignment pin is plugged in cylinder head through the pin-and-hole of cross bar；Described fuel injector is bolted in cylinder head by injector plate and injector plate.
Described injector plate is pressed against on fuel injector, and injector plate bolt is fastened in cylinder head through injector plate.
Described fuel injector Vertical Uniform is distributed in cylinder head, and the number of fuel injector is identical with the vertical rod number on positioning baffle, and vertical rod is evenly distributed on cross bar.
Block on described positioning baffle is located at the same side of cross bar, and the inclined-plane on block is positioned at the sidewall direction of block homonymy.
The beneficial effects of the present invention is:
1, it adopts the positioner of new structure to fasten after fuel injector is positioned again, so that fuel injector setting angle is accurately positioned, facilitates the installation of valve mechanism cover, also solves the risk of the sealing ring place leakage of oil in four holes, valve mechanism cover side simultaneously.
2, this positioning device structure is simple, easily manufactured, and production cost is low, it is possible to reuse.
3, adopt this positioner that fuel injector is positioned, fix and dismantle efficient and convenient, the packaging efficiency of diesel engine can be improved.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the close-up schematic view at A place in Fig. 1；
Fig. 3 is the structural representation of 5 positioning baffles in Fig. 1；
Fig. 4 be in Fig. 15 positioning baffles change angled arrangement schematic diagram.
In figure: 1, cylinder head；2, fuel injector；3, injector plate；4, injector plate bolt；5, positioning baffle；6, alignment pin；21, oil-feed arm；51, cross bar；52, pin-and-hole；53, vertical rod；54, block；55, inclined-plane.
Detailed description of the invention:
Embodiment: see that Fig. 1 is to shown in 4, the positioner that on a kind of diesel engine, fuel injector is installed, including the cylinder head 1 being arranged on cylinder, cylinder head 1 is provided with several fuel injectors 2, fuel injector 2 forms oil-feed arm 21, cylinder head 1 is mounted with positioning baffle 5, positioning baffle 5 is by cross bar 51, vertical rod 53 and block 54 form, cross bar 51 forms some vertical rods 53, the block 54 that top molding oriented cross bar 51 side of vertical rod 53 extends, one sidewall of block 54 forms inclined-plane 55, the oil-feed arm 21 of fuel injector 2 leans against on the inclined-plane 55 of positioning baffle 5, the two ends of described cross bar 51 form pin-and-hole 52, alignment pin 6 is plugged in cylinder head 1 through the pin-and-hole 52 of cross bar 51；Described fuel injector 2 is fixed in cylinder head 1 by injector plate 3 and injector plate bolt 4.
Described injector plate 3 is pressed against on fuel injector 2, and injector plate bolt 4 is fastened in cylinder head 1 through injector plate 3.
Described fuel injector 2 Vertical Uniform is distributed in cylinder head 1, and the number of fuel injector 2 is identical with vertical rod 53 number on positioning baffle 5, and vertical rod 53 is evenly distributed on cross bar 51.
Block 54 on described positioning baffle 5 is located at the same side of cross bar 51, and the inclined-plane 55 on block 54 is positioned at the sidewall direction of block 54 homonymy.
Operation principle: the mounting means of fuel injector 2 of the present invention is: positioning baffle 5 is fixed in cylinder head 1 by the alignment pin 6 at positioning baffle 5 two ends, the oil-feed arm 21 of fuel injector 2 is swayed on the inclined-plane 55 of positioning baffle 5, the injector plate bolt 4 on injector plate 3 is tightened in strict accordance with the moment of torsion of diesel engine defined, then positioning baffle 5 is being taken off again, cover valve mechanism cover, and tighten the nut on high-pressure oil pipe.
Claims (4)
- null1. the positioner that on a diesel engine, fuel injector is installed，Including the cylinder head (1) being arranged on cylinder，Cylinder head (1) is provided with several fuel injectors (2)，Fuel injector (2) forms oil-feed arm (21)，It is characterized in that: cylinder head (1) is mounted with positioning baffle (5)，Positioning baffle (5) is by cross bar (51)、Vertical rod (53) and block (54) composition，Cross bar (51) forms some vertical rods (53)，The block (54) that top molding oriented cross bar (51) side of vertical rod (53) extends，One sidewall of block (54) forms inclined-plane (55)，The oil-feed arm (21) of fuel injector (2) leans against on the inclined-plane (55) of positioning baffle (5)，The two ends of described cross bar (51) form pin-and-hole (52)，Alignment pin (6) is plugged in cylinder head (1) through the pin-and-hole (52) of cross bar (51)；Described fuel injector (2) is fixed in cylinder head (1) by injector plate (3) and injector plate bolt (4).
- 2. the positioner that on a kind of diesel engine according to claim 1, fuel injector is installed, it is characterized in that: described injector plate (3) is pressed against on fuel injector (2), injector plate bolt (4) is fastened in cylinder head (1) through injector plate (3).
- 3. the positioner that on a kind of diesel engine according to claim 2, fuel injector is installed, it is characterized in that: described fuel injector (2) Vertical Uniform is distributed in cylinder head (1), the number of fuel injector (2) is identical with vertical rod (53) number on positioning baffle (5), and vertical rod (53) is evenly distributed on cross bar (51).
- 4. the positioner that on a kind of diesel engine according to claim 2, fuel injector is installed, it is characterized in that: the block (54) on described positioning baffle (5) is located at the same side of cross bar (51), the inclined-plane (55) on block (54) is positioned at the sidewall direction of block (54) homonymy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537529.7A CN104265535B (en) | 2014-10-13 | 2014-10-13 | The positioner that on a kind of diesel engine, fuel injector is installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537529.7A CN104265535B (en) | 2014-10-13 | 2014-10-13 | The positioner that on a kind of diesel engine, fuel injector is installed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265535A CN104265535A (en) | 2015-01-07 |
| CN104265535B true CN104265535B (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537529.7A Active CN104265535B (en) | 2014-10-13 | 2014-10-13 | The positioner that on a kind of diesel engine, fuel injector is installed |
Country Status (1)
| Country | Link |
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| CN (1) | CN104265535B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696376B (en) * | 2019-09-24 | 2021-06-15 | 上海威克迈龙川汽车发动机零件有限公司 | High-pressure oil rail damping plastic ring mounting clamp |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230007A (en) * | 1998-02-10 | 1999-08-24 | Kubota Corp | Fixing device for fuel injector of engine |
| DE10152421A1 (en) * | 2001-10-24 | 2003-06-18 | Bosch Gmbh Robert | fastening device |
| US7334572B1 (en) * | 2007-01-30 | 2008-02-26 | Ford Global Technologies, Llc | System and method for securing fuel injectors |
| US8739763B2 (en) * | 2011-02-16 | 2014-06-03 | Hitachi Automotive Systems Americas Inc. | Fuel injector assembly |
| JP5912410B2 (en) * | 2011-10-26 | 2016-04-27 | トヨタ自動車株式会社 | Fuel delivery pipe fastening structure |
| CN204126792U (en) * | 2014-10-13 | 2015-01-28 | 浙江新柴股份有限公司 | The positioning device that on a kind of diesel engine, oil sprayer is installed |
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2014
- 2014-10-13 CN CN201410537529.7A patent/CN104265535B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104265535A (en) | 2015-01-07 |
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