CN107781085A - A kind of automobile injection pump assembly structure - Google Patents
A kind of automobile injection pump assembly structure Download PDFInfo
- Publication number
- CN107781085A CN107781085A CN201710932912.6A CN201710932912A CN107781085A CN 107781085 A CN107781085 A CN 107781085A CN 201710932912 A CN201710932912 A CN 201710932912A CN 107781085 A CN107781085 A CN 107781085A
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- China
- Prior art keywords
- pump assembly
- oil
- camshaft
- spring
- plunger
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/462—Delivery valves
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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
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Invention describes a kind of automobile injection pump assembly structure, and it includes pump assembly, and component installation cavity is provided with pump assembly, camshaft is provided with the bottom of component installation cavity, and the first sealing-plug is sealed and installed with component installation cavity opening；Sliding bearing is installed above camshaft, guide piston component is installed above sliding bearing, guide piston component is door type structure and is fastened on the inwall of pump assembly, horizontal detection hole is additionally provided with the pump assembly of guide piston component side, the second sealing-plug is installed in detection hole interior sealing；Lower spring cup is installed in the upper end of guide piston component, lower spring cup is enclosed on plunger rod and is adjacent to guide piston component, plunger casing is cased with plunger rod, the first O-ring seal is provided between plunger casing bottom and pump assembly, rectangular seal is provided between the top of plunger casing and pump assembly.The present invention has preferable functional reliability, and fault rate is relatively low, and service life is longer.
Description
Technical field
The present invention relates to a kind of automobile component, especially a kind of automobile injection pump assembly structure, belong to automobile mechanical equipment
Technical field.
Background technology
Injection pump is also known as high-pressure oil pump, is a most important part in automotive fuel oil system.The function of injection pump is to carry
High fuel pressure, and according to the requirement of diesel engine condition, a certain amount of fuel oil is supplied into fuel injector in correct time and sprays into combustion
Burn room.
At present now, injection pump can be divided into unit fuel injection pump and synthesis pump by its general structure, and unit fuel injection pump is main
It is made up of a plunger and plunger bushing, itself is without camshaft, some not even band roller transmission parts.Due to this march-past
Injection pump is easily disposed at the part close to cylinder head, greatly shortens high-pressure oil pipe, it is more than 200mm to apply at present in cylinder diameter
It is high-power in, on low-speed diesel engine.And it is installation and number of cylinders identical plunger matching parts in the same pump housing to synthesize pump, per cylinder
One group of pump element, by each corresponding actuated by cams of pump housing inner camshaft.The assembly of driveshaft fuel injection pump also includes speed regulator, defeated
Oil pump and fuel injection advance device, it can easily be arranged on bavin as an overall annex of diesel engine by flange or bottom support bracket
In oil machine, and individually calibrated and repaired, medium and small high-speed diesel engine uses this synthesis pump mostly.It is but now current
The problem of injection pump generally existing reliability deficiency, and service life is shorter, is also easy to result in blockage, the dimension during use
It is also higher to protect cost of upkeep.
The content of the invention
For above-mentioned deficiency of the prior art, it is a primary object of the present invention to the injection pump for solving now current integrally may be used
The problem of by property deficiency, and providing one kind has a preferable functional reliability, and service life it is longer automobile injection pump it is total
Into structure.
Technical scheme：A kind of automobile injection pump assembly structure, it is characterised in that including pump assembly, in institute
State in pump assembly and be provided with vertical component installation cavity, camshaft, the cam are installed in the bottom of the component installation cavity
Axle is laid along longitudinal direction, and the component installation cavity opening in camshaft bottom is sealed and installed with the first sealing-plug；In the camshaft
Top sliding bearing is installed, the upper-end contact of the sliding bearing and camshaft is simultaneously rotatable, in the top of sliding bearing
Guide piston component is installed, the guide piston component is door type structure and is fastened on the inwall of pump assembly, described
The detection hole of a transverse direction is additionally provided with the pump assembly of guide piston component side, is provided with the detection hole interior sealing
Two sealing-plugs；Lower spring cup is installed in the upper end of the guide piston component, the lower spring cup be enclosed on plunger rod and with
Guide piston component is adjacent to, and plunger casing is cased with the plunger rod, the bottom of the plunger casing and pump assembly it
Between be provided with the first O-ring seal, rectangular seal is provided between the top of plunger casing and pump assembly, the plunger protect
The lower end of cylinder is also cased with fuel control sleeve, and plunger spring, the lower end of the plunger spring are cased with the outside of fuel control sleeve
Pushed against with lower spring cup, upper end and the upper spring disk of plunger spring are pushed against, and one is provided with the upper end of the fuel control sleeve
Check ring, the upper spring disk push against with check ring；A mounting groove, post are provided with the top of the fuel control sleeve
The top of stopper rod is concordant with the bottom surface of mounting groove, and oil outlet valve component is fixed with mounting groove, is cased with oil outlet valve component fuel-displaced
Joint, the second O-ring seal is provided between the delivery connection outside and the top of pump assembly, is pacified in the delivery connection
Equipped with oil outlet valve spring, pushed against at the top of the upper end of the oil outlet valve spring and the inwall of delivery connection, the lower end of oil outlet valve spring
Pushed against with delivery connection；Oil discharge passage is provided with the delivery connection, the oil discharge passage connects with the inner chamber of plunger casing,
The first helmet is installed in the top outer of the oil discharge passage；Oil inlet pipe, institute are also equipped with the middle part of the pump assembly
State one end of oil inlet pipe to connect with the inner chamber of pump assembly, the other end of oil inlet pipe is connected with oil return valve, in the oil return valve
Outside is provided with the second helmet；Oil transfer pump, the oil-out of the oil transfer pump are also equipped with the lower outside of the pump assembly
Connected by ring flange with pump assembly；The front end of the camshaft passes outside pump assembly and determined by circlip for shaft
Position, is cased with taper roll bearing, the rear end of the camshaft also passes pump housing group between the front end of camshaft and pump assembly
Part is outer and is positioned by the end cap on pump assembly, and cylinder roller bearing, institute are provided between the end cap and camshaft
State end cap to be bolted on pump assembly, the 3rd O-ring seal is cased with the outside of end cap, it is also logical in the outside of end cap
Cross screw and be fixed with spring washer；Shaft coupling is also cased with the rear end of the camshaft, after the shaft coupling is fixed on camshaft
On the taper surface at end, one end and the spring washer of the shaft coupling are pushed against, and the other end of shaft coupling is locked by hexagon thin nut,
Lock washer is additionally provided between the hexagon thin nut and shaft coupling.
Optimally, described oil outlet valve component is made up of delivery valve seat, lower hold-down head, upper hold-down head and limit spring,
The delivery valve seat is fixed in the mounting groove on plunger casing top, and spacing cavity is provided with delivery valve seat, and lower hold-down head is set
In the bottom of spacing cavity, upper hold-down head is located at the top of delivery valve seat, is provided between lower hold-down head and upper hold-down head spacing
Spring.Present invention employs modular oil outlet valve component structure, and it uses the combination of multiple parts, to realize fuel-displaced control
System, not only installation operation is convenient, and later period maintenance is also simpler, and global reliability is also obviously improved.
Optimally, lubricating oil oil-in is additionally provided with the middle part side of the pump assembly, in the lubricating oil oil-feed
Protecting cover is installed on mouthful.Here by setting lubricating oil oil-in, addition lubricating oil more aspect, and being advantageous to excellent in side
Change overall structure.
Optimally, six delivery connections are installed on pump assembly, described delivery connection is vertically arranged, each
Individual delivery connection both sides are respectively provided with a hex nut.The present invention is by installing six delivery connections, to realize multiple oil spouts
The connection of mouth, can lifting means power to greatest extent, reach larger output.
Optimally, sliding bearing is also cased with the camshaft, the sliding bearing passes through hexagon socket cap head screw
It is fixed on pump assembly.Be advantageous to reduce the friction and wear between camshaft and pump assembly by installing sliding bearing,
The service life of critical piece is improved, while also reduces rate of breakdown.
Optimally, at least two groups of connecting lugs, described connecting lugs difference are additionally provided with the outside of the pump assembly
Installed in the middle part of pump assembly and bottom.Here the connecting lugs more safety of aspect injection pump assembly and positioning, drop are passed through
The low installation difficulty of equipment.
Optimally, adjustable plate is also equipped with the end cap, one end of the adjustable plate is bolted on end cap,
The other end of adjustable plate is extended between shaft coupling and spring washer.The elastic of shaft coupling can be adjusted by installation and adjustment plate
Degree, so as to reach the purpose of control device resistance to overturning.
Relative to prior art, the invention has the advantages that：
1st, there is preferable functional reliability：The present invention automobile injection pump assembly can under various operating modes reliably working, when
Fuel delivery increases when load is big, and load hour fuel delivery is reduced, while also ensure should be equal to the fuel delivery of each cylinder, Yi Jibao
The card duration of feeding is identical, and fuel feeding should rapidly start, and it is oily rapid agile to stop, and avoids oil dripping phenomenon.
2nd, fault rate is relatively low, and service life is longer：The injection pump of the present invention employs the structure of monoblock type, assembly difficulty
It is small, and inter deterioration is smaller, steady operation, whole service life can substantially prolong relative to existing equipment under various operating modes
It is long.
3rd, maintenance cost is relatively low, advantageously reduces use cost, is advantageous to the popularization and application in market.
Brief description of the drawings
Fig. 1 is a kind of front view of automobile injection pump assembly structure of the present invention.
Fig. 2 is Fig. 1 right view.
Fig. 3 is Fig. 1 left view.
Fig. 4 is Fig. 1 top view.
Fig. 5 is Fig. 1 A-A sectional views.
Fig. 6 is Fig. 1 B-B sectional views.
Fig. 7 is Fig. 1 C-C sectional views.
In figure, 1-pump assembly, 2-component installation cavity, 3-camshaft, the 4-the first sealing-plug, 5-sliding bearing,
6-guide piston component, 7-detection hole, the 8-the second sealing-plug, 9-lower spring cup, 10-plunger rod, 11-plunger casing,
12-the first O-ring seal, 13-rectangular seal, 14-fuel control sleeve, 15-plunger spring, 16-upper spring disk,
17-check ring, 18-mounting groove, 19-oil outlet valve component, 191-delivery valve seat, 192-lower hold-down head, 193-upper pressure
Tight head, 194-limit spring, 195-spacing cavity, 20-delivery connection, the 21-the second O-ring seal, 22-delivery valve bullet
Spring, 23-oil discharge passage, the 24-the first helmet, 25-oil inlet pipe, 26-oil return valve, the 27-the second helmet, 28-oil transfer pump,
29-ring flange, 30-circlip, 31-taper roll bearing, 32-end cap, 33-cylinder roller bearing, 34-bolt,
35-the three O-ring seal, 36-spring washer, 37-shaft coupling, 38-hexagon thin nut, 39-lock washer, 40-profit
Lubricating oil oil inlet, 41-protecting cover, 42-hex nut, 43-sliding bearing, 44-hexagon socket cap head screw, 45-connection branch
Ear, 46-adjustable plate.
Embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
As shown in Fig. 1-Fig. 7, a kind of automobile injection pump assembly structure of the invention, including pump assembly 1, in the pump housing
Vertical component installation cavity 2 is provided with component 1, camshaft 3, the camshaft 3 are installed in the bottom of the component installation cavity 2
Laid along longitudinal direction, the opening of component installation cavity 4 in the bottom of camshaft 3 is sealed and installed with the first sealing-plug 4；In the camshaft
3 top is provided with sliding bearing 5, and the upper-end contact of the sliding bearing 5 and camshaft 3 is simultaneously rotatable, in sliding bearing 5
Top is provided with guide piston component 6, and the guide piston component 6 is door type structure and is fastened on the inwall of pump assembly 1,
The detection hole 7 of a transverse direction is additionally provided with the pump assembly 1 of the side of guide piston component 6, it is close in the detection hole 7
Envelope is provided with the second sealing-plug 8；Lower spring cup 9,9 sets of the lower spring cup are installed in the upper end of the guide piston component 6
It is adjacent on plunger rod 10 and with guide piston component 6, plunger casing 11 is cased with the plunger rod 10, is protected in the plunger
Be provided with the first O-ring seal 12 between the bottom of cylinder 11 and pump assembly 1, the top of plunger casing 11 and pump assembly 1 it
Between be provided with rectangular seal 13, fuel control sleeve 14 is also cased with the lower end of the plunger casing 11, in fuel control sleeve
14 outside be cased with plunger spring 15, lower end and the lower spring cup 9 of the plunger spring 15 push against, the upper end of plunger spring 15 with it is upper
Spring holder 16 is pushed against, and a check ring 17, the upper spring disk 16 and bullet are provided with the upper end of the fuel control sleeve 14
Spring back-up ring 17 pushes against；A mounting groove 18, the top of plunger rod 10 and installation are provided with the top of the fuel control sleeve 14
The bottom surface of groove 18 is concordant, and oil outlet valve component 19 is fixed with mounting groove 18, and delivery connection 20, institute are cased with oil outlet valve component 19
State and be provided with the second O-ring seal 21 between the outside of delivery connection 20 and the top of pump assembly 1, pacify in the delivery connection 20
Equipped with oil outlet valve spring 22, the upper end of the oil outlet valve spring 22 at the top of the inwall of delivery connection 20 with pushing against, oil outlet valve spring
22 lower end pushes against with delivery connection 20；Oil discharge passage 23, the oil discharge passage 23 and post are provided with the delivery connection 20
The inner chamber connection of casing 11 is filled in, first helmet 24 is installed in the top outer of the oil discharge passage 23；In the pump assembly 1
Middle part be also equipped with oil inlet pipe 25, one end of the oil inlet pipe 25 connects with the inner chamber of pump assembly 1, oil inlet pipe 25 it is another
End is connected with oil return valve 26, and the second helmet 27 is provided with the outside of the oil return valve 26；Outside the bottom of the pump assembly 1
Side is also equipped with oil transfer pump 28, and the oil-out of the oil transfer pump 28 is connected by ring flange 29 with pump assembly 1；The camshaft
3 front end passes outside pump assembly 1 and positioned by circlip for shaft 30, between the front end of camshaft 3 and pump assembly 1
Taper roll bearing 31 is cased with, the rear end of the camshaft 3 is also passed outside pump assembly 1 and by pump assembly 1
End cap 32 position, be provided with cylinder roller bearing 33 between the end cap 32 and camshaft 3, the end cap 32 is solid by bolt 34
It is scheduled on pump assembly 1, is cased with the 3rd O-ring seal 35 in the outside of end cap 32, is also consolidated in the outside of end cap 32 by screw
Surely there is spring washer 36；Shaft coupling 37 is also cased with the rear end of the camshaft 3, after the shaft coupling 37 is fixed on camshaft 3
On the taper surface at end, one end and the spring washer 36 of the shaft coupling 37 push against, and the other end of shaft coupling 37 is by hexagon thin nut
38 lockings, lock washer 39 is additionally provided between the hexagon thin nut 38 and shaft coupling 37.
Referring to Fig. 1, described oil outlet valve component 19 is by delivery valve seat 191, lower hold-down head 192, upper hold-down head 193 and limit
Position spring 194 is formed, and the delivery valve seat 191 is fixed in the mounting groove 18 on the top of plunger casing 11, in delivery valve seat 191
Provided with spacing cavity 195, lower hold-down head 192 is located at the bottom of spacing cavity 195, and upper hold-down head 193 is located at delivery valve seat 191
Top, limit spring 194 is provided between lower hold-down head 192 and upper hold-down head 193.
Referring to Fig. 1-Fig. 7, lubricating oil oil-in 40 is additionally provided with the middle part side of the pump assembly 1, in the profit
Protecting cover 41 is installed on lubricating oil oil inlet 40.Six delivery connections 20, described delivery connection 20 are installed on pump assembly 1
It is vertically arranged, one hex nut 42 is respectively installed in each both sides of delivery connection 20.Also it is cased with the camshaft 3
Sliding bearing 43, the sliding bearing 43 are fixed on pump assembly 1 by hexagon socket cap head screw 44.In the pump housing group
The outside of part 1 is additionally provided with least two groups of connecting lugs 45, described connecting lugs 45 be separately mounted to pump assembly 1 middle part and
Bottom.Adjustable plate 46 is also equipped with the end cap 32, one end of the adjustable plate 46 is fixed on end cap 32 by bolt 34,
The other end of adjustable plate 46 is extended between shaft coupling 37 and spring washer 36.
Operation principle：During work, outside fluid enters pump assembly inner chamber by oil transfer pump, due to the section of camshaft
For sector structure, therefore when cam axle, fluid can be pressed into the inner chamber top of pump assembly by camshaft, and fluid promotes
Plunger rod in the vertical direction moves, and plunger rod compresses the spring at both ends, and produces quick reciprocating action, and formation is frequently rushed
Work is pressed, so as to form the injection of fluid at delivery connection.Oil inlet pipe at middle part can be used for supplement and the addition of fuel oil,
And lubricating oil oil-in is then to be used to add lubricating oil so that internal part is lubricated.
While the automobile injection pump assembly structure of the present invention has high reliability, service life is also extended, failure
Rate is relatively low, also with good versatility.
It should be noted that above example is only to illustrate technical solution of the present invention rather than restriction technologies scheme, although
Applicant is explained in detail with reference to preferred embodiment to the present invention, it will be understood by those within the art that, those are right
The modification or equivalent substitution that technical solution of the present invention is carried out, it is impossible to depart from the objective and scope of the technical program, all should cover
Among scope of the invention as claimed.
Claims (7)
1. a kind of automobile injection pump assembly structure, it is characterised in that including pump assembly（1）, in the pump assembly（1）Inside set
There is vertical component installation cavity（2）, in the component installation cavity（2）Bottom camshaft is installed（3）, the camshaft（3）
Laid along longitudinal direction, in camshaft（3）The component installation cavity of bottom（4）Opening is sealed and installed with the first sealing-plug（4）；Described
Camshaft（3）Top sliding bearing is installed（5）, the sliding bearing（5）With camshaft（3）Upper-end contact and can turn
It is dynamic, in sliding bearing（5）Top guide piston component is installed（6）, the guide piston component（6）For door type structure and tight
Gu in pump assembly（1）Inwall on, in the guide piston component（6）The pump assembly of side（1）On be additionally provided with a horizontal stroke
To detection hole（7）, in the detection hole（7）Interior sealing is provided with the second sealing-plug（8）；In the guide piston component（6）
Upper end lower spring cup is installed（9）, the lower spring cup（9）It is enclosed on plunger rod（10）It is upper and with guide piston component（6）Patch
Tightly, in the plunger rod（10）On be cased with plunger casing（11）, in the plunger casing（11）Bottom and pump assembly（1）It
Between be provided with the first O-ring seal（12）, in plunger casing（11）Top and pump assembly（1）Between be provided with rectangular seal
（13）, in the plunger casing（11）Lower end be also cased with fuel control sleeve（14）, in fuel control sleeve（14）Outer sheath
There is plunger spring（15）, the plunger spring（15）Lower end and lower spring cup（9）Push against, plunger spring（15）Upper end with it is upper
Spring holder（16）Push against, in the fuel control sleeve（14）Upper end be provided with a check ring（17）, the upper spring disk
（16）With check ring（17）Push against；In the fuel control sleeve（14）Top be provided with a mounting groove（18）, plunger rod
（10）Top and mounting groove（18）Bottom surface it is concordant, in mounting groove（18）Inside it is fixed with oil outlet valve component（19）, fuel-displaced valve group
Part（19）On be cased with delivery connection（20）, the delivery connection（20）Outside and pump assembly（1）Top between be provided with the 2nd O
Type sealing ring（21）, in the delivery connection（20）Oil outlet valve spring is inside installed（22）, the oil outlet valve spring（22）It is upper
End and delivery connection（20）Inwall at the top of push against, oil outlet valve spring（22）Lower end and delivery connection（20）Push against；Described
Delivery connection（20）It is interior to be provided with oil discharge passage（23）, the oil discharge passage（23）With plunger casing（11）Inner chamber connection, in institute
State oil discharge passage（23）Top outer the first helmet is installed（24）；In the pump assembly（1）Middle part be also equipped with into
Oil pipe（25）, the oil inlet pipe（25）One end and pump assembly（1）Inner chamber connection, oil inlet pipe（25）The other end and oil return
Valve（26）It is connected, in the oil return valve（26）Outside the second helmet is installed（27）；In the pump assembly（1）Bottom outside
Side is also equipped with oil transfer pump（28）, the oil transfer pump（28）Oil-out pass through ring flange（29）With pump assembly（1）Connection；Institute
State camshaft（3）Front end pass pump assembly（1）It is outer and pass through circlip for shaft（30）Positioning, in camshaft（3）Before
End and pump assembly（1）Between be cased with taper roll bearing（31）, the camshaft（3）Rear end also pass pump assembly（1）
Outside and by installed in pump assembly（1）On end cap（32）Positioning, the end cap（32）With camshaft（3）Between be provided with cylinder
Roller bearing（33）, the end cap（32）Pass through bolt（34）It is fixed on pump assembly（1）On, in end cap（32）Outside be cased with
3rd O-ring seal（35）, in end cap（32）Outside spring washer is also fixed with by screw（36）；In the camshaft
（3）Rear end be also cased with shaft coupling（37）, the shaft coupling（37）It is fixed on camshaft（3）It is described on the taper surface of rear end
Joint（37）One end and spring washer（36）Push against, shaft coupling（37）The other end by hexagon thin nut（38）Locking, in institute
State hexagon thin nut（38）With shaft coupling（37）Between be additionally provided with lock washer（39）.
A kind of 2. automobile injection pump assembly structure according to claim 1, it is characterised in that described oil outlet valve component
（19）It is by delivery valve seat（191）, lower hold-down head（192）, upper hold-down head（193）And limit spring（194）Composition, it is described fuel-displaced
Valve seat（191）It is fixed on plunger casing（11）The mounting groove on top（18）It is interior, in delivery valve seat（191）It is interior to be provided with spacing cavity
（195）, lower hold-down head（192）Located at spacing cavity（195）Bottom, upper hold-down head（193）Located at delivery valve seat（191）Top
Portion, in lower hold-down head（192）With upper hold-down head（193）Between be provided with limit spring（194）.
3. a kind of automobile injection pump assembly structure according to claim 2, it is characterised in that in the pump assembly（1）
Middle part side on be additionally provided with lubricating oil oil-in（40）, in the lubricating oil oil-in（40）On protecting cover is installed（41）.
4. a kind of automobile injection pump assembly structure according to claim 3, it is characterised in that in pump assembly（1）Upper peace
Equipped with six delivery connections（20）, described delivery connection（20）It is vertically arranged, in each delivery connection（20）Both sides are each
One hex nut is installed（42）.
5. a kind of automobile injection pump assembly structure according to claim 4, it is characterised in that in the camshaft（3）On
Also it is cased with sliding bearing（43）, the sliding bearing（43）Pass through hexagon socket cap head screw（44）It is fixed on pump assembly（1）
On.
6. a kind of automobile injection pump assembly structure according to claim 5, it is characterised in that in the pump assembly（1）
Outside be additionally provided with least two groups of connecting lugs（45）, described connecting lugs（45）It is separately mounted to pump assembly（1）In
Portion and bottom.
7. a kind of automobile injection pump assembly structure according to claim 6, it is characterised in that in the end cap（32）It is upper to go back
Adjustable plate is installed（46）, the adjustable plate（46）One end by bolt（34）It is fixed on end cap（32）On, adjustable plate（46）'s
The other end extends to shaft coupling（37）With spring washer（36）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710932912.6A CN107781085A (en) | 2017-10-10 | 2017-10-10 | A kind of automobile injection pump assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710932912.6A CN107781085A (en) | 2017-10-10 | 2017-10-10 | A kind of automobile injection pump assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107781085A true CN107781085A (en) | 2018-03-09 |
Family
ID=61434283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710932912.6A Pending CN107781085A (en) | 2017-10-10 | 2017-10-10 | A kind of automobile injection pump assembly structure |
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| CN (1) | CN107781085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735747A (en) * | 2019-09-27 | 2020-01-31 | 云梭(宁波)科技有限公司 | kinds of fuel injection pump |
| CN114198229A (en) * | 2021-12-13 | 2022-03-18 | 重庆红江机械有限责任公司 | Large-scale high-pressure oil pump cam box subassembly |
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| CN2583377Y (en) * | 2002-09-16 | 2003-10-29 | 无锡威孚集团有限公司 | Oil injection pump with oil scraper ring |
| DE102010042472A1 (en) * | 2010-10-14 | 2012-04-19 | Robert Bosch Gmbh | High-pressure pump of a fuel injection system of an internal combustion engine |
| CN202338430U (en) * | 2011-11-09 | 2012-07-18 | 王晓燕 | Plunger type single oil feed pump |
| CN205908403U (en) * | 2016-06-16 | 2017-01-25 | 江西汇尔油泵油嘴有限公司 | Four jar injection pumps of noise have been reduced |
| CN205918531U (en) * | 2016-08-29 | 2017-02-01 | 重庆红江机械有限责任公司 | High -speed high power diesel engine combination injection pump |
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| GB9617374D0 (en) * | 1995-08-30 | 1996-10-02 | Daimler Benz Ag | High-pressure fuel pump for an internal combustion engine |
| CN2583377Y (en) * | 2002-09-16 | 2003-10-29 | 无锡威孚集团有限公司 | Oil injection pump with oil scraper ring |
| DE102010042472A1 (en) * | 2010-10-14 | 2012-04-19 | Robert Bosch Gmbh | High-pressure pump of a fuel injection system of an internal combustion engine |
| CN202338430U (en) * | 2011-11-09 | 2012-07-18 | 王晓燕 | Plunger type single oil feed pump |
| CN205908403U (en) * | 2016-06-16 | 2017-01-25 | 江西汇尔油泵油嘴有限公司 | Four jar injection pumps of noise have been reduced |
| CN205918531U (en) * | 2016-08-29 | 2017-02-01 | 重庆红江机械有限责任公司 | High -speed high power diesel engine combination injection pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735747A (en) * | 2019-09-27 | 2020-01-31 | 云梭(宁波)科技有限公司 | kinds of fuel injection pump |
| CN110735747B (en) * | 2019-09-27 | 2020-08-07 | 卡川尔流体科技(上海)有限公司 | Fuel injection pump |
| CN114198229A (en) * | 2021-12-13 | 2022-03-18 | 重庆红江机械有限责任公司 | Large-scale high-pressure oil pump cam box subassembly |
| CN114198229B (en) * | 2021-12-13 | 2024-04-26 | 重庆红江机械有限责任公司 | Cam box assembly of large high-pressure oil pump |
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Application publication date: 20180309 |
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