CN202300561U - Integrated type engine brake device - Google Patents
Integrated type engine brake device Download PDFInfo
- Publication number
- CN202300561U CN202300561U CN2011204408030U CN201120440803U CN202300561U CN 202300561 U CN202300561 U CN 202300561U CN 2011204408030 U CN2011204408030 U CN 2011204408030U CN 201120440803 U CN201120440803 U CN 201120440803U CN 202300561 U CN202300561 U CN 202300561U
- Authority
- CN
- China
- Prior art keywords
- valve
- control valve
- exhaust
- return spring
- rocker arm
- 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
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Abstract
The utility model relates to an integrated type engine brake device, which includes a valve lash control device and an engine brake on/off device, wherein the valve lash control device includes an adjusting bolt, an exhaust valve rocking arm pressure ball, a pressure ball seat and an image angle return spring, and the engine brake on/off device includes an exhaust rocking arm, a control valve, a control valve spring seat, a control valve return spring, a tapered plug, a spacing ball and a spacing ball return spring. The integrated type engine brake device is characterized in that the exhaust valve rocking arm pressure ball at the lower end of the valve lash control device is connected with the pressure ball seat; an exhaust rocking arm valve bridge is arranged at the bottom end of the pressure ball seat; a brake oil circuit is arranged in the exhaust rocking arm; the valve lash control device is mounted at the front end of the exhaust rocking arm; a one-way valve hole and a control valve hole are arranged in the exhaust rocking arm; the tapered plug, the spacing ball and the spacing ball return spring are mounted in the one-way valve hole; and the control valve, the control valve spring seat and the control valve return spring are mounted in the control valve hole. The integrated type engine brake device has the advantages of simple structure, excellent rigidity, low cost and big obtained braking power, and has the unique advantages in realization and working performance.
Description
Technical field
The utility model relates to a kind of integrated engine braking device, is applied on the DENG, and it is big to be specially adapted to gross mass, only relies on the main brake of automobile self can not satisfy the vehicle of brake request under the vehicle high-speed overload condition.
Background technique
The gross mass of Hyundai Motor is increasing, and the speed of a motor vehicle is increasingly high, only relies on the primary brake system of vehicle self can not satisfy the brake request under the vehicle high-speed overload condition.In order to guarantee the Safety performance of vehicle, must increase complemental brake system.Engine braking is through the fall holder of automobile to motor, utilizes Engine Mechanical loss, pumping loss and compression work etc. to produce braking function, thereby increases automobile brake power.
When precipitous road surfaces such as lower long slope, rugged hill path, must utilize engine braking, reduce the frequency of utilization of foot brake effectively, avoid causing the temperature of brake bush to raise because of the long-time break that uses, braking force is descended, in addition ineffective.At present, the engine braking of on motor, using mainly is divided into lose heart braking and two kinds of compression brakes: the brake structure that loses heart is simple, and it is easy to realize, cost is low, but braking force is less; Compression brake structure relative complex, the braking force that is obtained is bigger, but cost is higher.
Summary of the invention
The purpose of the utility model provides a kind of integrated engine braking device, and it is simple in structure, good rigidity, and cost is low, and the braking force that is obtained is big, and realization property and the service behaviour aspect of himself all possess special advantages.
The technological scheme of the utility model is achieved in that a kind of integrated engine braking device; Comprise a valve clearance control gear and engine braking switch gear; Said valve clearance control gear comprises adjustment bolt, exhaust valve rocker arm pressure ball, pressure ball seat, image angle return spring; Said engine braking switch gear comprises exhaust rocker arm, control valve, control valve spring seat, control valve return spring, tapered obstruction, spacing ball, spacing ball return spring composition; It is characterized in that: the exhaust valve rocker arm pressure ball and the pressure ball seat of control gear lower end, valve clearance link together; Pressure ball seat bottom is the exhaust rocker arm air valve bridge, is provided with brake circuit in the exhaust rocker arm, and the exhaust rocker arm front end is installed on the spiracular slit control gear exhaust rocker arm and arranged unidirectional valve opening and control valve bore; Tapered obstruction, spacing ball, spacing ball return spring are installed, installation and control valve, control valve spring seat, control valve return spring in the control valve bore in the unidirectional valve opening.
The good effect of the utility model is simple in structure, good rigidity, and cost is low, and realization property and the service behaviour aspect of himself all possess special advantages.
Description of drawings
Fig. 1 is the structural drawing of the utility model.
Fig. 2 is the phase diagram of the utility model when engine braking is worked.
Fig. 3 is the phase diagram of the utility model when engine braking is not worked.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further: as shown in Figure 1; A kind of integrated engine braking device; Intermittently control gear 1, exhaust valve rocker arm pressure ball 2, pressure ball seat 3, exhaust rocker arm air valve bridge 4, exhaust rocker arm 5, control valve 6, control valve spring seat 7, control valve return spring 8, tapered obstruction 9, spacing ball 10, spacing ball return spring 11 are formed by valve; It is characterized in that: valve intermittently control gear 1 lower end is connected with pressure ball seat 3 through exhaust valve rocker arm pressure ball 2; Pressure ball seat 3 bottoms are exhaust rocker arm air valve bridge 4; Have brake circuit in the exhaust rocker arm 5, exhaust rocker arm 5 one ends intermittently are fixedly connected on control gear 1 top with valve, and exhaust rocker arm 5 is intermittently slotted before control gear 1 joint with valve; Groove is embedded in spacing ball 10 spacing ball return springs 11, tapered obstruction 9; Spacing ball 10 communicates with the oil circuit of exhaust rocker arm 5, and control valve 6 is connected the place, draining hole that is positioned at exhaust rocker arm 5 with exhaust rocker arm 5 oil circuits, and control valve 6 links into an integrated entity through control valve return spring 8 and control valve spring seat 7.
Embodiment, as shown in Figure 3, when engine braking is not worked; Exhaust valve rocker arm pressure ball 2 keeps contacting with exhaust rocker arm air valve bridge 4 under the effect of image angle return spring 4 with pressure ball seat 3; Have certain little gap between exhaust valve rocker arm pressure ball 2 and the adjustment bolt 1, exhaust valve rocker arm pressure ball 2 can move up and down, and the blank compensation apparatus that the braking lift on the exhaust cam is deflated in the rocking arm compensates; Engine braking is inoperative, the motor proper functioning.
As shown in Figure 2, when needing engine braking work, engine electronic control unit sends instruction, and solenoid valve is opened; Machine oil gets into the brake circuit of exhaust rocker arm 5, promotes control valve 6 and moves downward, and blocks and unloads oilhole; Spacing ball 10 compression spacing ball return springs 11 communicate brake circuit simultaneously, are full of machine oil between adjustment bolt 1 and the exhaust valve rocker arm pressure ball 2; Exhaust valve rocker arm pressure ball 2 cannot move up and down, and the braking lift on the exhaust cam promotes air valve bridge near piston top dead center, opens exhaust valve; Discharge cylinder inner high voltage gas, realize the engine braking function, improve braking force.
During the cancellation braking state, engine electronic control unit sends instruction, closed electromagnetic valve; Control valve 6 moves upward under the effect of control valve return spring 8; Machine oil goes out through the emptying orifice flow, and exhaust valve rocker arm pressure ball 2 can move up and down, and overcomes the braking lift on the exhaust cam; Engine braking is inoperative, the motor proper functioning.
Claims (1)
1. integrated engine braking device; Comprise a valve clearance control gear and engine braking switch gear; Said valve clearance control gear comprises adjustment bolt, exhaust valve rocker arm pressure ball, pressure ball seat, image angle return spring; Said engine braking switch gear comprises exhaust rocker arm, control valve, control valve spring seat, control valve return spring, tapered obstruction, spacing ball, spacing ball return spring composition; It is characterized in that: the exhaust valve rocker arm pressure ball and the pressure ball seat of control gear lower end, valve clearance link together; Pressure ball seat bottom is the exhaust rocker arm air valve bridge, is provided with brake circuit in the exhaust rocker arm, and the exhaust rocker arm front end is installed on the spiracular slit control gear exhaust rocker arm and arranged unidirectional valve opening and control valve bore; Tapered obstruction, spacing ball, spacing ball return spring are installed, installation and control valve, control valve spring seat, control valve return spring in the control valve bore in the unidirectional valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204408030U CN202300561U (en) | 2011-11-09 | 2011-11-09 | Integrated type engine brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204408030U CN202300561U (en) | 2011-11-09 | 2011-11-09 | Integrated type engine brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300561U true CN202300561U (en) | 2012-07-04 |
Family
ID=46369483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204408030U Expired - Fee Related CN202300561U (en) | 2011-11-09 | 2011-11-09 | Integrated type engine brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202300561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035460A (en) * | 2017-04-20 | 2017-08-11 | 东风商用车有限公司 | A kind of engine braking oil path control device and its application method |
-
2011
- 2011-11-09 CN CN2011204408030U patent/CN202300561U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035460A (en) * | 2017-04-20 | 2017-08-11 | 东风商用车有限公司 | A kind of engine braking oil path control device and its application method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20191109 |