CN204984515U - V8 type diesel engine valve drive arrangement - Google Patents
V8 type diesel engine valve drive arrangement Download PDFInfo
- Publication number
- CN204984515U CN204984515U CN201520512458.5U CN201520512458U CN204984515U CN 204984515 U CN204984515 U CN 204984515U CN 201520512458 U CN201520512458 U CN 201520512458U CN 204984515 U CN204984515 U CN 204984515U
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- swing arm
- cam
- camshaft
- cylinder
- bearing journal
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a V8 type diesel engine valve drive arrangement, includes the single camshaft and the advancing of 8 cylinders arranging, exhaust cam, advance, exhaust cam sets up different phase place angles according to the firing order of diesel engine, advancing of 2 cylinders arrange between every two adjacent camshaft journals, exhaust cam, the 8 groups swing arm that still includes coaxial arrangement constitutes the rocking arm follower, the swing arm of every group is including winding a balance staff pivoted left side alone, right side swing arm, its pendulum epaxial position respectively with the camshaft on the advancing of 8 cylinders, that gives vent to anger the cam arranges that the position is corresponding, the balance staff is installed directly over the camshaft, a left side, right side swing arm becomes the left side that " eight " font is located the camshaft respectively, right side both sides, a left side, the lower extreme of right side swing arm be connected with respectively with the camshaft on the cam contact's that corresponds gyro wheel. Drive arrangement transmission structure is simple for this valve, and the friction in the transmittance process is little, and drive valve and valve charging efficiency are high, and the power utilization is effective, can popularize and apply in at V12, and diesel engines such as V16 are serial.
Description
Technical field
The utility model relates to a kind of engine components, particularly relates to a kind of V8 diesel engine valve actuator.
Background technique
The V8 diesel engine used at present, the driving of its valve adopts twin cam shaft driving mode, the inlet, outlet cam (often arranging the inlet, outlet cam of a cylinder between adjacent two camshaft bearing journals) of every root cam shaft arrangement 4 cylinders, directly by cam pushing tow valve actuating push rod, control air inlet or the exhaust of valve; The drive unit of this kind of structure exists following not enough:
1. complex structure, takes up room large, dismounting and inconvenient maintenance;
2. directly controlled air inlet or the exhaust of valve by cam pushing tow valve actuating push rod, charging efficiency is not high, affects vehicle economy and power character.
Summary of the invention
The technical problems to be solved in the utility model is, for the shortcoming of prior art, provides a kind of V8 diesel engine valve actuator, to overcome the above-mentioned deficiency existing for prior art.
The technological scheme that the utility model is taked is: a kind of V8 diesel engine valve actuator, comprise camshaft, described camshaft is single camshaft, single camshaft is furnished with the inlet and outlet cam of 8 cylinders, described inlet and outlet cam arranges different phase angles by the firing order of diesel engine, often arrange the inlet and outlet cam of 2 cylinders between adjacent two camshaft bearing journals, that is:
The 8th cylinder exhaust cam, the 8th cylinder intake cam, the 1st cylinder intake cam and the 1st cylinder exhaust cam is arranged successively between the 1st camshaft bearing journal and the 2nd camshaft bearing journal;
The 7th cylinder exhaust cam, the 7th cylinder intake cam, the 2nd cylinder intake cam and the 2nd cylinder exhaust cam is arranged successively between the 2nd camshaft bearing journal and the 3rd camshaft bearing journal;
The 6th cylinder exhaust cam, the 6th cylinder intake cam, the 3rd cylinder intake cam and the 3rd cylinder exhaust cam is arranged successively between the 3rd camshaft bearing journal and the 4th camshaft bearing journal;
The 5th cylinder exhaust cam, the 5th cylinder intake cam, the 4th cylinder intake cam and the 4th cylinder exhaust cam is arranged successively between the 4th camshaft bearing journal and tail end camshaft bearing journal;
Described drive unit also comprises rocking arm follower, described rocking arm follower comprises balance staff and coaxial mounted 8 groups of swing arms, often organize swing arm structure identical, comprise left swing arm and right swing arm, left swing arm and right swing arm can rotate around balance staff separately and not interfere with each other, and the left swing arm often organizing swing arm is corresponding with the position of the inlet, outlet cam of 8 cylinders on camshaft respectively with the position of right swing arm on balance staff;
Described balance staff is arranged on directly over camshaft, the left swing arm often organizing swing arm becomes "eight" shape to lay respectively at a left side for camshaft with right swing arm, right both sides, left swing arm waist contacts with the intake valve push rod of the cylinder of corresponding group, right swing arm waist contacts with the exhaust valve push rod of the cylinder of corresponding group, left, the lower end of right swing arm is connected to the roller of the cam contact corresponding with on camshaft, when the roller of left swing arm lower end backs down left by the cam that camshaft is corresponding, left swing arm promotes the intake valve push rod of the cylinder of corresponding group thus is opened by the valve of the cylinder of correspondence, when the roller of right swing arm lower end backs down to the right by the cam that camshaft is corresponding, right swing arm promotes the exhaust valve push rod of the cylinder of corresponding group, thus the exhaust valve of the cylinder of correspondence is opened.
Its further technological scheme is: be provided with the grease channel from axle sleeve to roller in described left swing arm and right swing arm.
Owing to adopting technique scheme, a kind of V8 diesel engine valve actuator of the utility model has following beneficial effect:
1. a kind of V8 diesel engine valve actuator of the utility model adopts center arrangement single camshaft driving V-shaped both sides intake valve and exhaust valve, by cam arrangement below roller, and the balance staff of rocking arm follower and the same vertical line of camshaft, the distance of bent axle to camshaft can be reduced, make drive mechanism simpler;
2. the rocking arm follower of a kind of V8 diesel engine valve actuator of the utility model adopts double lever principle, makes single camshaft driving V-shaped both sides inlet and exhaust valve simultaneously, power is more effectively utilized, be conducive to improving engine fuel economy energy;
3. a kind of V8 diesel engine valve actuator of the utility model adopts roller structure, camshaft and rocking arm follower are effectively connected, both valve train structure member can be greatly reduced, the friction in transmittance process can be reduced on the other hand, be conducive to the efficiency and the valve charging efficiency that improve driving valve;
4. a kind of V8 diesel engine valve actuator of the utility model has wide range of applications, and is not merely confined to V8 diesel engine, can arrange different camshafts and corresponding rocking arm follower, be applied at Diesel Series such as V12, V16 according to number of cylinders.
Below in conjunction with embodiment, the technical characteristics of a kind of V8 diesel engine valve actuator of the utility model is further described.
Accompanying drawing explanation
Fig. 1 is a kind of V8 diesel engine valve actuator structural representation of the utility model;
Fig. 2 is the rocking arm follower structural representation of the utility model;
Fig. 3 is single camshaft (cam distribution) structural representation of the utility model;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is existing V8 diesel engine valve actuator structural representation:
Fig. 6 is existing left camshaft (cam distribution) structural representation;
Fig. 7 is existing right camshaft (cam distribution) structural representation;
In figure:
The left camshaft of A-, the right camshaft of B-, C-single camshaft;
1-the 1st camshaft bearing journal, 2-the 2nd camshaft bearing journal, 3-the 3rd camshaft bearing journal, 4-the 4th camshaft bearing journal, 5-tail end camshaft bearing journal, 6-intake valve push rod, 7-exhaust valve push rod, 8-rocking arm follower, 800-balance staff, 810-left swing arm, 811-grease channel, 812-roller, 820-right swing arm, 821-grease channel, 822-roller;
11-the 1st cylinder intake cam, 12-the 1st cylinder exhaust cam, 21-the 2nd cylinder intake cam, 22-the 2nd cylinder exhaust cam, 31-the 3rd cylinder intake cam, 32-the 2nd cylinder exhaust cam, 41-the 4th cylinder intake cam, 42-the 4th cylinder exhaust cam, 51-the 5th cylinder intake cam, 52-the 5th cylinder exhaust cam, 61-the 6th cylinder intake cam, 62-the 6th cylinder exhaust cam, 71-the 7th cylinder intake cam, 72-the 7th cylinder exhaust cam, 81-the 8th cylinder intake cam, 82-the 8th cylinder exhaust cam;
Embodiment
embodiment one
A kind of V8 diesel engine valve actuator, comprise camshaft, described camshaft is single camshaft C, single camshaft C is furnished with the inlet and outlet cam of 8 cylinders, described inlet and outlet cam arranges different phase angles by the firing order of diesel engine, often arrange the inlet and outlet cam of 2 cylinders between adjacent two camshaft bearing journals, that is:
The 8th cylinder exhaust cam 82, the 8th cylinder intake cam 81, the 1st cylinder intake cam 11 and the 1st cylinder exhaust cam 12 is arranged successively between the 1st camshaft bearing journal and the 2nd camshaft bearing journal;
The 7th cylinder exhaust 72 cam, the 7th cylinder intake cam 71, the 2nd cylinder intake cam 21 and the 2nd cylinder exhaust cam 22 is arranged successively between the 2nd camshaft bearing journal and the 3rd camshaft bearing journal,
The 6th cylinder exhaust cam 62, the 6th cylinder intake cam 61, the 3rd cylinder intake cam 31 and the 3rd cylinder exhaust cam 32 is arranged successively between the 3rd camshaft bearing journal and the 4th camshaft bearing journal,
The 5th cylinder exhaust cam 52, the 5th cylinder intake cam 51, the 4th cylinder intake cam 41 and the 4th cylinder exhaust cam 42 is arranged successively between the 4th camshaft bearing journal and tail end camshaft bearing journal;
Described drive unit also comprises rocking arm follower 8, described rocking arm follower comprises balance staff 800 and coaxial mounted 8 groups of swing arms, often organize swing arm structure identical, comprise left swing arm 810 and right swing arm 820, left swing arm and right swing arm can rotate around balance staff separately and not interfere with each other, and the left swing arm often organizing swing arm is corresponding with the position of the inlet, outlet cam of 8 cylinders on camshaft respectively with the position of right swing arm on balance staff; (as the left swing arm of the 1st group is corresponding with the 8th cylinder intake cam position, the right swing arm of the 1st group is corresponding with the 8th cylinder exhaust cam position, the left swing arm of the 2nd group is corresponding with the 1st cylinder intake cam position, the right swing arm of the 2nd group is corresponding with the 1st cylinder exhaust cam position, the like ...)
Described balance staff is arranged on directly over camshaft, the left swing arm often organizing swing arm becomes "eight" shape to lay respectively at a left side for camshaft with right swing arm, right both sides, left swing arm waist contacts with the intake valve push rod 6 of the cylinder of corresponding group, right swing arm waist contacts with the exhaust valve push rod 7 of the cylinder of corresponding group, left, the lower end of right swing arm is connected to the roller 812 and 822 of the cam contact corresponding with on camshaft, when the roller of left swing arm lower end backs down left by the cam that camshaft is corresponding, left swing arm promotes the intake valve push rod 6 of the cylinder of corresponding group thus is opened by the valve of the cylinder of correspondence, when the roller of right swing arm lower end backs down to the right by the cam that camshaft is corresponding, right swing arm promotes the exhaust valve push rod 7 of the cylinder of corresponding group, thus the exhaust valve of the cylinder of correspondence is opened.
The grease channel 811 and 821 from axle sleeve to roller is provided with in described left swing arm and right swing arm.
embodiment two
A kind of V12 diesel engine valve actuator, its structure is basic identical with embodiment one, and difference is:
1. single camshaft C is furnished with the inlet and outlet cam of 12 cylinders;
2. rocking arm follower comprises coaxial mounted 12 groups of swing arms.
embodiment three
A kind of V16 diesel engine valve actuator, its structure is basic identical with embodiment one, and difference is:
1. single camshaft C is furnished with the inlet and outlet cam of 16 cylinders;
2. rocking arm follower comprises coaxial mounted 16 groups of swing arms.
Claims (2)
1. a V8 diesel engine valve actuator, comprise camshaft, it is characterized in that: described camshaft is single camshaft (C), single camshaft (C) is furnished with the inlet and outlet cam of 8 cylinders, described inlet and outlet cam arranges different phase angles by the firing order of diesel engine, often arrange the inlet and outlet cam of 2 cylinders between adjacent two camshaft bearing journals, that is:
The 8th cylinder exhaust cam, the 8th cylinder intake cam, the 1st cylinder intake cam and the 1st cylinder exhaust cam is arranged successively between the 1st camshaft bearing journal and the 2nd camshaft bearing journal;
The 7th cylinder exhaust cam, the 7th cylinder intake cam, the 2nd cylinder intake cam and the 2nd cylinder exhaust cam is arranged successively between the 2nd camshaft bearing journal and the 3rd camshaft bearing journal;
The 6th cylinder exhaust cam, the 6th cylinder intake cam, the 3rd cylinder intake cam and the 3rd cylinder exhaust cam is arranged successively between the 3rd camshaft bearing journal and the 4th camshaft bearing journal;
The 5th cylinder exhaust cam, the 5th cylinder intake cam, the 4th cylinder intake cam and the 4th cylinder exhaust cam is arranged successively between the 4th camshaft bearing journal and tail end camshaft bearing journal;
Described drive unit also comprises rocking arm follower (8), described rocking arm follower comprises balance staff (800) and coaxial mounted 8 groups of swing arms, often organize swing arm structure identical, comprise left swing arm (810) and right swing arm (820), left swing arm and right swing arm can rotate around balance staff separately and not interfere with each other, and the left swing arm often organizing swing arm is corresponding with the position of the inlet, outlet cam of 8 cylinders on camshaft respectively with the position of right swing arm on balance staff;
Described balance staff is arranged on directly over camshaft, the left swing arm often organizing swing arm becomes "eight" shape to lay respectively at a left side for camshaft with right swing arm, right both sides, left swing arm waist contacts with the intake valve push rod (6) of the cylinder of corresponding group, right swing arm waist contacts with the exhaust valve push rod (7) of the cylinder of corresponding group, left, the lower end of right swing arm is connected to the roller (812 of the cam contact corresponding with on camshaft, 822), when the roller of left swing arm lower end backs down left by the cam that camshaft is corresponding, left swing arm promotes the intake valve push rod (6) of the cylinder of corresponding group thus is opened by the valve of the cylinder of correspondence, when the roller of right swing arm lower end backs down to the right by the cam that camshaft is corresponding, right swing arm promotes the exhaust valve push rod (7) of the cylinder of corresponding group, thus the exhaust valve of the cylinder of correspondence is opened.
2. a kind of V8 diesel engine valve actuator according to claim 1, is characterized in that: be provided with the grease channel (811,821) from axle sleeve to roller in described left swing arm and right swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512458.5U CN204984515U (en) | 2015-07-15 | 2015-07-15 | V8 type diesel engine valve drive arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512458.5U CN204984515U (en) | 2015-07-15 | 2015-07-15 | V8 type diesel engine valve drive arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984515U true CN204984515U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520512458.5U Expired - Fee Related CN204984515U (en) | 2015-07-15 | 2015-07-15 | V8 type diesel engine valve drive arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204984515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065072A (en) * | 2015-07-15 | 2015-11-18 | 广西科技大学 | V8 type diesel valve drive device |
-
2015
- 2015-07-15 CN CN201520512458.5U patent/CN204984515U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065072A (en) * | 2015-07-15 | 2015-11-18 | 广西科技大学 | V8 type diesel valve drive device |
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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: 20160120 Termination date: 20170715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |