CN201763491U - Tappet body structure for automobile engine - Google Patents
Tappet body structure for automobile engine Download PDFInfo
- Publication number
- CN201763491U CN201763491U CN2010205246876U CN201020524687U CN201763491U CN 201763491 U CN201763491 U CN 201763491U CN 2010205246876 U CN2010205246876 U CN 2010205246876U CN 201020524687 U CN201020524687 U CN 201020524687U CN 201763491 U CN201763491 U CN 201763491U
- Authority
- CN
- China
- Prior art keywords
- tappet body
- body structure
- roller
- tappet
- holding tank
- 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.)
- Expired - Fee Related
Links
- 239000000314 lubricant Substances 0.000 claims description 21
- 230000007704 transition Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract 3
- 238000005096 rolling process Methods 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 39
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000000295 fuel oil Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a novel tappet body structure. Base on the technology solution proposed in the utility model, the tappet body structure for automobile engine is structured in such a manner that a rolling wheel mounting slot is arranged on one end of the tappet body, concentric roller pin mounting holes perpendicular to the axis of the tappet body are arranged on left and right side walls where the rolling wheel mounting slot is located. The tappet body structure is characterized in that a lubricating oil storage slot is arranged on the other end of the tappet body, a straight inlet port which enables the communication between the lubricating oil storage slot and the rolling wheel mounting slot is arranged on the tappet body, a circular groove is arranged on the external wall of the tappet body near the lubricating oil storage slot, an inclined inlet port is arranged each place between the circular groove and two roller pins, a guide groove, of which the length direction is parallel to the axis of the tappet body, is arranged on the external wall of tappet body. The tappet body structure is simple, compact and reasonable in structure, has improved antiwear, tensile and compression resistance performances and can greatly prolong the service life of an engine.
Description
Technical field
The utility model belongs to the mechanical structure technical field, relates to a kind of appurtenances of motor car engine Injection Pump, specifically a kind of novel tappet body structure.
Background technique
Along with the arrival in energy-conserving and environment-protective epoch, the Economy and the emission performance that improve motor car engine have become the focus that automobile manufacturers is paid close attention to.Along with the continuous development of car engine machine technology, fuel-injected ultrahigh pressureization has become the inevitable development direction of fuel oil supply system, and fuel injection ultrahigh pressureization need increase substantially the pump end pressure of Injection Pump.But along with the continuous increase of pump end pressure, the also corresponding increase of the roller in the injection pump of engine and the contact stress of cam makes the contact stress of roller and roller pin also increase thereupon.The increase of stress aggravated roller and roller pin this to the mechanical wear between the kinematic pair, had a strong impact on the life-span of Injection Pump.There is not the lubricated fully key factor that causes its wearing and tearing aggravation just between roller and the roller pin.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of motor car engine tappet body structure simple in structure, compact, rational is provided, that this tappet body structure can strengthen is wear-resistant, tension, compression resistance, effectively prolongs the working life of motor.
The technological scheme that provides according to the utility model: the end at the tappet body is provided with roller mounting slot, offers the concentric roller pin mounting hole perpendicular to the tappet body axis on the left and right sides sidewall that forms roller mounting slot; It is characterized in that: the described tappet body the other end is provided with the lubricant oil holding tank, is provided with the straight oil inlet hole that the lubricant oil holding tank is communicated with roller mounting slot on the tappet body; Outer wall near lubricant oil holding tank one end on the described tappet body is provided with an annular groove, offers an oblique oil inlet hole respectively between annular groove and two roller pin mounting holes; Offer a direction recess on the external wall of tappet, the length direction of direction recess is parallel to the tappet body axis.
As further improvement of the utility model, the end that offers the left and right sides sidewall of roller pin mounting hole on the described tappet body extends to form lug relative about two.
As further improvement of the utility model, the straight oil inlet hole on the described tappet body has four, and the center line of straight oil inlet hole is parallel to the tappet body axis, and four straight oil inlet holes are the bottom that the center is evenly distributed on the lubricant oil holding tank with the tappet body axis.
As further improvement of the utility model, the central position of described lubricant oil holding tank bottom is provided with round boss.
As further improvement of the utility model, pass through an arc-shaped surface transition between the front and back sides of formation roller mounting slot on the described tappet body.
As further improvement of the utility model, described direction recess is a U-groove bevel.
The utility model compared with prior art, advantage is: simple in structure, compact, rationally; Because the tappet body is provided with two oblique oil inlet holes, the gap that makes lubricant oil can better enter between roller pin and the roller pin mounting hole is lubricated, lubricated is more even, prevent to cause the contact stress between roller pin and the roller pin mounting hole inwall to increase, aggravate the wearing and tearing between them because of the increase of pump end pressure; Offer four straight oil inlet holes in the bottom of lubricant oil holding tank, make the lubricant oil in the lubricant oil holding tank pass through four straight oil inlet holes, better between roller, roller pin and cam, be lubricated, reduce the friction between roller and cam, roller and the roller pin, prolong roller, cam and to working life of roller pin.
Description of drawings
Fig. 1 is the utility model embodiment's a plan view.
Fig. 2 is the A-A sectional view among Fig. 1.
Fig. 3 is the B-B sectional view among Fig. 2.
Fig. 4 is the worm's eye view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As Fig. 1 ~ shown in Figure 4, an end of motor car engine tappet body is provided with roller mounting slot 9 among the embodiment, offer the concentric roller pin mounting hole 4 perpendicular to the tappet body axis on the left and right sides sidewall that forms roller mounting slot 9, the end of described left and right sides sidewall extends to form lug relative about two 3.The described tappet body the other end is provided with lubricant oil holding tank 6, is provided with the straight oil inlet hole 5 that lubricant oil holding tank 6 is communicated with roller mounting slot 9 on the tappet body; Straight oil inlet hole 5 has four, and the center line of straight oil inlet hole 5 is parallel to the tappet body axis, and four straight oil inlet holes 5 are the bottom that the center is evenly distributed on lubricant oil holding tank 6 with the tappet body axis.Outer wall near lubricant oil holding tank 6 one ends on the described tappet body is provided with an annular groove 2, and annular groove 2 plays the effect of storage lubricant oil, offers an oblique oil inlet hole 7 respectively between annular groove 2 and two roller pin mounting holes 4; The gap that two oblique oil inlet holes 7 make lubricant oil can better enter between roller pin and the roller pin mounting hole 4 is lubricated, and lubricated is more even, reduces the contact stress between roller pin and roller pin mounting hole 4 inwalls, reduces the wearing and tearing between them.Offer a direction recess 1 on the external wall of tappet, direction recess 1 is a U-groove bevel, and the length direction of direction recess 1 is parallel to the tappet body axis.Pass through arc-shaped surface 10 transition between the front and back sides of formation roller mounting slot 9 on the described tappet body, this arc-shaped surface 10 adapts with the roller outer circumferential face shape that is contained in the roller mounting slot 9.
As shown in Figure 2, the central position of described lubricant oil holding tank 6 bottoms is provided with round boss 8, and round boss 8 is used to support plunger, and when cam forwarded convex portion to and makes the tappet body rise, it was up to promote plunger.
Tappet body described in the utility model is applied in the oil-burning machine Injection Pump mechanism, during Injection Pump work, it is moving that camshaft begins not stall, camshaft contacts with roller on being installed in the tappet body, the tappet body is along with the lifting to-and-fro motion is done in the rotation of cam, the direction recess 1 guiding pin member interior with sealing cylinder that is arranged on the external wall of tappet matches, and is used to limit the axial rotation of tappet body; When the tappet body rises, promote upwards operation of plunger, the fuel oil in the sealing cylinder is compressed, pressure rises rapidly, when oil pressure increased to the residual pressure that is enough to overcome in oil outlet valve spring pressure and the high-pressure oil pipe, outlet valve was backed down, and fuel oil is pressed into oil pipe and delivers to oil sprayer.When plunger continues to go upward to skewed slot on the plunger when spill port on the plunger bushing communicates, the fuel oil of plunger upper part is through axially oil duct and radial direction oil flow back to the low pressure oil duct, this moment, the pressure of high-pressure oil passage sharply descended, and outlet valve cuts out rapidly under the effect of spring force, fuel cut-off.This back-plunger is also up, and after the convex portion of cam turned round, under the effect of spring, plunger was descending again, has just begun next circulation this moment.
Claims (6)
1. motor car engine tappet body structure is provided with roller mounting slot (9) at an end of tappet body, offers the concentric roller pin mounting hole (4) perpendicular to the tappet body axis on the left and right sides sidewall that forms roller mounting slot (9); It is characterized in that: the described tappet body the other end is provided with lubricant oil holding tank (6), is provided with the straight oil inlet hole (5) that lubricant oil holding tank (6) is communicated with roller mounting slot (9) on the tappet body; Outer wall near lubricant oil holding tank (6) one ends on the described tappet body is provided with an annular groove (2), offers an oblique oil inlet hole (7) respectively between annular groove (2) and two the roller pin mounting holes (4); Offer a direction recess (1) on the external wall of tappet, the length direction of direction recess (1) is parallel to the tappet body axis.
2. motor car engine tappet body structure as claimed in claim 1 is characterized in that: the end that offers the left and right sides sidewall of roller pin mounting hole (4) on the described tappet body extends to form lug relative about two (3).
3. motor car engine tappet body structure as claimed in claim 1, it is characterized in that: the straight oil inlet hole (5) on the described tappet body has four, the center line of straight oil inlet hole (5) is parallel to the tappet body axis, and four straight oil inlet holes (5) are the bottom that the center is evenly distributed on lubricant oil holding tank (6) with the tappet body axis.
4. motor car engine tappet body structure as claimed in claim 1 is characterized in that: the central position of described lubricant oil holding tank (6) bottom is provided with round boss (8).
5. motor car engine tappet body structure as claimed in claim 1 is characterized in that: form on the described tappet body between the front and back sides of roller mounting slot (9) by an arc-shaped surface (10) transition.
6. motor car engine tappet body structure as claimed in claim 1 is characterized in that: described direction recess (1) is a U-groove bevel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205246876U CN201763491U (en) | 2010-09-10 | 2010-09-10 | Tappet body structure for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205246876U CN201763491U (en) | 2010-09-10 | 2010-09-10 | Tappet body structure for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763491U true CN201763491U (en) | 2011-03-16 |
Family
ID=43716098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205246876U Expired - Fee Related CN201763491U (en) | 2010-09-10 | 2010-09-10 | Tappet body structure for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763491U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506000A (en) * | 2011-12-31 | 2012-06-20 | 中国兵器工业集团第七○研究所 | Pressure lubricating integral barrel-shaped tappet device |
| CN109578101A (en) * | 2018-11-27 | 2019-04-05 | 安徽江淮汽车集团股份有限公司 | A kind of mechanical tappets of achievable cylinder deactivation function |
| CN112443441A (en) * | 2020-11-20 | 2021-03-05 | 无锡锡州机械有限公司 | Tappet body of fuel injection pump |
| CN113931772A (en) * | 2021-11-09 | 2022-01-14 | 无锡锡州机械有限公司 | Tappet body part with long service life for high pressure common rail |
-
2010
- 2010-09-10 CN CN2010205246876U patent/CN201763491U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506000A (en) * | 2011-12-31 | 2012-06-20 | 中国兵器工业集团第七○研究所 | Pressure lubricating integral barrel-shaped tappet device |
| CN109578101A (en) * | 2018-11-27 | 2019-04-05 | 安徽江淮汽车集团股份有限公司 | A kind of mechanical tappets of achievable cylinder deactivation function |
| CN112443441A (en) * | 2020-11-20 | 2021-03-05 | 无锡锡州机械有限公司 | Tappet body of fuel injection pump |
| CN113931772A (en) * | 2021-11-09 | 2022-01-14 | 无锡锡州机械有限公司 | Tappet body part with long service life for high pressure common rail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9074474B2 (en) | Pump, in particular a high-pressure fuel pump | |
| US20100037865A1 (en) | Tappet assembly for a high-pressure pump and high-pressure pump comprising at least one tappet assembly | |
| CN201763491U (en) | Tappet body structure for automobile engine | |
| CN101608590B (en) | Tappet roller end shape for improved lubrication and combination with fuel pump and engine | |
| CN201786404U (en) | Tappet component provided with lubricating structure | |
| CN101529082B (en) | Piston pump, in particular fuel pump, having roller tappet | |
| CN103089507B (en) | Double-row six-cylinder radial type common-rail oil feed pump | |
| CN103261684A (en) | High pressure pump | |
| CN201763492U (en) | Tappet body component with lubrication structure | |
| CN102003319A (en) | High-pressure fuel feed pump for high-pressure common-rail fuel injection system | |
| CN218935313U (en) | A press-fit flow valve structure for high pressure flow | |
| CN201696194U (en) | Tappet body type oil channel structure | |
| CN105464864A (en) | Plunger type high-pressure fuel pump | |
| CN110714866A (en) | Tappet body and fuel injection pump including the same | |
| CN204186516U (en) | Superhigh pressure jetting system tappet body | |
| CN105422346A (en) | Plunger and barrel assembly for high-flow high-rotation speed rotor type high pressure common rail variable pump | |
| CN201582116U (en) | Scroll compressor for improving oil supply for cross pin ring | |
| CN101737109B (en) | Valve tappet device of engine | |
| CN211287824U (en) | Self-lubricating noise-reducing wear-resistant hydraulic tappet | |
| CN203515904U (en) | Constant pressure oil outlet valve | |
| CN201568550U (en) | Roller with drum-shaped inner hole | |
| CN201554508U (en) | Engine valve tappet device | |
| CN222596867U (en) | A kind of oil injection check valve | |
| CN101725693A (en) | Idler wheel with drum inner bore | |
| CN103470417A (en) | Isobaric oil outlet valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20190910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |