CN202926416U - Electric control hydraulic air distribution system for engine - Google Patents
Electric control hydraulic air distribution system for engine Download PDFInfo
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- CN202926416U CN202926416U CN201220583337.6U CN201220583337U CN202926416U CN 202926416 U CN202926416 U CN 202926416U CN 201220583337 U CN201220583337 U CN 201220583337U CN 202926416 U CN202926416 U CN 202926416U
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Abstract
The utility model discloses an electric control hydraulic air distribution system for an engine. The system comprises a hydraulic air distribution mechanism cylinder body, a piston execution mechanism, a hydraulic cylinder body oil inlet pipeline, a hydraulic cylinder body oil return pipeline, an ECU (Electronic Control unit) and an electromagnetic valve execution mechanism, wherein the hydraulic air distribution mechanism cylinder body and the piston execution mechanism comprise a hydraulic cylinder body and a piston respectively; the piston is arranged in the hydraulic cylinder body, and can move up and down under the combined action of hydraulic force and a valve spring; one end of the oil inlet pipeline is communicated with the hydraulic cylinder body, and the other end of the oil inlet pipeline is communicated with an oil bottom casing of an engine; an oil inlet hole and an oil return hole are formed in one end of the oil inlet pipeline and one end of the oil return pipeline, which are close to the hydraulic cylinder body respectively; and the ECU is in signal connection with the electromagnetic valve execution mechanism, and controls the electromagnetic valve execution mechanism to open or close the oil inlet hole and the oil return hole through continuously receiving engine working state signals which are emitted by a crankshaft box signal panel sensor to control hydraulic force in the hydraulic cylinder body so as to control open, close and lift of a valve. The system can realize an electric control full-variable function of the engine valve; and the function comprises continuous adjustment of timing, phase and lift of the valve.
Description
Technical field
The utility model relates to engine art, particularly a kind of engine electric-controlled hydraulic pressure gas distribution system.
Background technique
In the prior art scheme, engine air distribution system generally adopts camshaft actuated valve scheme, realizes inlet and outlet control.Its working principle is: rotated by the engine wheel system drive cam shaft, inlet and outlet cam on camshaft also contacts with valve by design point with the camshaft synchronous rotary, control the keying moment and the valve lift of inlet and outlet door, realize motor inlet and outlet control.
Above-mentioned employing camshaft actuated valve realizes that there is following shortcoming in the scheme that inlet and outlet are controlled: the camshaft gas distribution system of design typification is difficult to realize valve changeable (namely changing valve timing or/and valve lift); One cover gas distribution system can not share in two-stroke and four stroke engine; The response of camshaft actuated valve is insensitive, and the motor pumping loss is large.
The model utility content
The utility model is in order to overcome defective in above-mentioned prior art, by engine electric-controlled hydraulic pressure gas distribution system scheme and working principle, can realize the full changeable of air gate distribution phase place, a lot of technology of motor, all need to use the port timing of flexibility and changeability, as handoff technique between two-stroke and four stroke engine, cylinder inside brake technology, HCCI combustion technology, miller cycle technology, the warm management of motor row, cylinder stopping technique, internal-combustion engine and external-combustion engine handoff technique etc., the realization of electrically-controlled hydraulic variable port timing, above-mentioned technology all can be used.
For realizing above-mentioned model utility purpose, the utility model provides a kind of engine electric-controlled hydraulic pressure gas distribution system, this system comprises: Profile for Hydraulic Valve Gear cylinder body and piston actuator, it comprises hydraulic cylinder and piston, and piston is located in hydraulic cylinder and can be moved up and down under hydraulic coupling and valve spring acting in conjunction; Hydraulic cylinder oil-feed, return line, in-line one end is communicated with hydraulic cylinder, the other end is communicated with engine sump tank, return line one end is communicated with hydraulic cylinder, the other end is communicated with engine sump tank, and in-line and return line are respectively equipped with oil inlet hole and spill port near hydraulic cylinder one end; ECU and electromagnetic valve actuating gear, ECU is connected with the electromagnetic valve actuating gear signal, ECU is by continuing to receive the engine behavior signal that sends from crankcase signal panel sensor, control electromagnetic valve actuating gear and open or close oil inlet hole and spill port, thereby the hydraulic coupling in the control hydraulic cylinder, and then switching and the lift of control valve.
In technique scheme, the in-line of hydraulic cylinder is provided with distribution device hydraulic oil common rail pipe, and the in-line between hydraulic oil common rail pipe and engine sump tank is provided with hydraulic-pressure pump.
In technique scheme, the hydraulic oil common rail pipe is connected with ECU, can monitor oil pressure in the hydraulic oil common rail pipe by ECU.
In technique scheme, be provided with the signal panel gear that is meshed with crankshaft gear in crankcase, the synchronous rotary of signal panel gear can make the described engine behavior signal of signal panel sensor Real-time Obtaining.
Compared with prior art, the utlity model has following beneficial effect:
1, gas distribution system of the present utility model adopts electric-controlled hydraulic to control, and is quick on the draw, and can greatly reduce the motor pumping loss;
2, because electric-controlled hydraulic control can realize stepless adjustment to valve lift, easily realize the variable control of engine valve;
3, gas distribution system of the present utility model is applied widely, can share between two-stroke and four stroke engine;
4, gas distribution system of the present utility model can be realized the needed valve motion rule of cylinder inside brake, so the utility model is more easily realized engine cylinder inside brake function with respect to prior art;
5, gas distribution system of the present utility model can be realized the required valve lift continuous variable function of HCCI burning, can be used for realizing the HCCI burning;
6, the effective control engine air intake-exhaust amount of gas distribution system of the present utility model, thus delivery temperature controlled;
7, gas distribution system of the present utility model can be adjusted the inlet and exhaust valve phase place flexibly, can be convenient to realize the motor miller cycle.
Description of drawings
Fig. 1 is the engine electric-controlled hydraulic pressure gas distribution system of the utility model sketch.
Mark the following drawings mark thereon by reference to the accompanying drawings:
the 1-engine piston, the 2-engine link, the 3-engine crank, 4-engine crankshaft gear, 5-signal panel gear, the 6-engine crankcase, the 7-cylinder, 8-engine valve and tappet, the 9-engine cylinder cap, the 10-valve spring, 11-distribution device hydraulic cylinder, 12-distribution device hydraulic piston, 13-distribution device hydraulic oil oil inlet pipe, 14-distribution device hydraulic oil oil inlet hole, 15-distribution device hydraulic oil common rail pipe, 16-common rail pipe oil inlet pipe, 17-distribution device hydraulic oil return tube, 18-distribution device hydraulic oil spill port, the 19-electromagnetic valve actuating gear, the 20-oil sump, the 21-hydraulic-pressure pump, the 22-ECU electronic control unit, 23-signal panel sensor.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
As shown in Figure 1, engine electric-controlled hydraulic pressure gas distribution system of the present utility model receives signal from the signal panel sensor by ECU, control distribution device oil-feed, oil return, thereby control distribution device piston moves in the distribution device hydraulic cylinder and drives the engine valve unlatching or close the inlet and outlet door, obtains timing and lift that valve needs.
further as shown in Figure 1, the distribution device part specifically comprises hydraulic cylinder 11, hydraulic piston 12, hydraulic piston 12 can move up and down in hydraulic cylinder 11, be arranged with valve spring 10 on valve tappet, realize the control of valve motion under spring force acting in conjunction by the hydraulic coupling on hydraulic piston 12 and valve spring 10, owing to advancing, the switching of exhaust valve and lift are controlled and need to be adjusted according to the work time point of each stroke of motor, therefore distribution device also comprises oil-feed, the oil return control unit, this advances, the oil return control unit comprises hydraulic oil oil inlet pipe 13 and hydraulic oil return tube 17, be respectively equipped with hydraulic oil oil inlet hole 14 and hydraulic oil spill port 18 on oil inlet pipe 13 and return tube 17, can make electromagnetic valve actuating gear control the unlatching of hydraulic oil oil inlet hole 14 and hydraulic oil spill port 18 or close by the ECU22 transmitted signal, and then control enters the hydraulic coupling in hydraulic cylinder 11, thereby control valve event.Motor has a plurality of inlet and outlet doors, be provided with distribution device common rail pipe 15 on the distribution device in-line, common rail pipe 15 front ends are provided with common rail pipe oil inlet pipe 16, and common rail pipe oil inlet pipe 16 is connected with oil sump 20 by hydraulic-pressure pump 21, and hydraulic oil return tube 17 also is connected with oil sump 20.
The motor that the utility model relates to is conventional engine, comprises cylinder 7, cylinder head 9 and crankcase 6, and the rotation of engine crankshaft gear 4 drives piston 1 by engine crank 3 and engine link 2 and pumps in cylinder body 7.
The working procedure of the engine electric-controlled hydraulic pressure gas distribution system of the utility model is described below in conjunction with Fig. 1:
at first, hydraulic-pressure pump 21 is stored in unification after fluid sucking-off and pressurization in distribution device hydraulic oil common rail pipe 15 from oil sump 20, have stable in distribution device hydraulic oil common rail pipe 15, the hydraulic oil of high pressure guarantees that being enough to drive valve opens and closes, oil pressure in distribution device hydraulic oil common rail pipe 15 is monitored by ECU22, engine valve and tappet 8(advance, exhaust valve) be in closed condition under the effect of valve spring 10, signal panel gear 5 is with crankshaft gear 4 engagements and the working signal of motor is passed to signal panel sensor 23, ECU22 receives the signal of signal panel sensor 23 and electromagnetic valve actuating gear 19 is sent instruction carry out associative operation.
The first process: when ECU22 monitors motor and need to open engine valve and tappet 8 from signal panel sensor 23, ECU22 sends immediately instruction and allows electromagnetic valve actuating gear 19 open distribution device hydraulic oil oil inlet hole 14 and close distribution device hydraulic oil spill port 18, high-voltage oil liquid in hydraulic oil common rail pipe 15 enters distribution device hydraulic cylinder 11 and drives distribution device hydraulic piston 12 descending immediately, distribution device hydraulic piston 12 overcomes that spring force promotes engine valve and tappet 8 is descending, valve is opened, and gas enters or discharge cylinder 7.
The second process: when ECU22 monitors motor and need to kill engine valve and tappet 8 from signal panel sensor 23, ECU22 sends immediately instruction and allows electromagnetic valve actuating gear 19 open distribution device hydraulic oil spill port 18 and close distribution device hydraulic oil oil inlet hole 14, high-voltage oil liquid in distribution device hydraulic cylinder 11 is discharged to oil sump 20 immediately, and engine valve and tappet 8 be the up and valve that kills engine under the effect of valve spring 10.ECU22 continues to monitor engine condition and sends command adapted thereto by the periodic duty between the first process and the second process of electric-controlled hydraulic gas distribution system, realizes the control of motor inlet and outlet electric-controlled hydraulic.
gas distribution system of the present utility model adopts electric-controlled hydraulic to control, can realize valve motion parameter (port timing, valve timing and valve lift) electrodeless adjusting, and many functions and the control of motor, switching as internal-combustion engine and external-combustion engine, two strokes and four-stroke switching, cylinder deactivation, the cylinder inside brake, the HCCI burning, miller cycle, the exhaust heat management all needs to change the characteristics of motion of gas distribution system, existing distribution device can not be realized all characteristics of motion, and the utility model not only can satisfy the requirement of motor fundamental function, and can make motor realize more function.
Above disclosed be only a specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (4)
1. an engine electric-controlled hydraulic pressure gas distribution system, is characterized in that, comprising:
Profile for Hydraulic Valve Gear cylinder body and piston actuator, it comprises hydraulic cylinder and piston, described piston is located in hydraulic cylinder and can be moved up and down under hydraulic coupling and valve spring acting in conjunction;
Hydraulic cylinder oil-feed, return line, described in-line one end is communicated with hydraulic cylinder, and the other end is communicated with engine sump tank; Described return line one end is communicated with hydraulic cylinder, and the other end is communicated with engine sump tank; Described in-line and return line are respectively equipped with oil inlet hole and spill port near hydraulic cylinder one end;
ECU and electromagnetic valve actuating gear, described ECU is connected with the electromagnetic valve actuating gear signal, described ECU is by continuing to receive the engine behavior signal that sends from crankcase signal panel sensor, control described electromagnetic valve actuating gear and open or close described oil inlet hole and spill port, thereby control the hydraulic coupling in described hydraulic cylinder, and then control switching and the lift of valve.
2. engine electric-controlled hydraulic pressure gas distribution system according to claim 1, it is characterized in that, the in-line of described hydraulic cylinder is provided with distribution device hydraulic oil common rail pipe, and the in-line between described hydraulic oil common rail pipe and engine sump tank is provided with hydraulic-pressure pump.
3. engine electric-controlled hydraulic pressure gas distribution system according to claim 2, is characterized in that, described hydraulic oil common rail pipe is connected with described ECU, monitors oil pressure in the hydraulic oil common rail pipe by ECU.
4. engine electric-controlled hydraulic pressure gas distribution system according to claim 1, it is characterized in that, be provided with the signal panel gear that is meshed with crankshaft gear in described crankcase, the synchronous rotary of signal panel gear makes the described engine behavior signal of signal panel sensor Real-time Obtaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220583337.6U CN202926416U (en) | 2012-11-07 | 2012-11-07 | Electric control hydraulic air distribution system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220583337.6U CN202926416U (en) | 2012-11-07 | 2012-11-07 | Electric control hydraulic air distribution system for engine |
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| Publication Number | Publication Date |
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| CN202926416U true CN202926416U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220583337.6U Expired - Fee Related CN202926416U (en) | 2012-11-07 | 2012-11-07 | Electric control hydraulic air distribution system for engine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806973A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Electric control hydraulic air distribution system for engine |
| CN103953427A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Electro-hydraulic driving exhaust mechanism |
| CN107313828A (en) * | 2017-08-31 | 2017-11-03 | 吉林大学 | A kind of electric machine controlled hydraulic-driven variable valve actuator for air |
| WO2019100199A1 (en) * | 2017-11-21 | 2019-05-31 | 白保忠 | Hydraulic gas distribution device for internal combustion engine, driving method thereof, and internal combustion engine having hydraulic gas distribution |
| CN111156064A (en) * | 2019-12-25 | 2020-05-15 | 浙江吉利新能源商用车集团有限公司 | Electric control valve structure and engine |
-
2012
- 2012-11-07 CN CN201220583337.6U patent/CN202926416U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806973A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Electric control hydraulic air distribution system for engine |
| CN103806973B (en) * | 2012-11-07 | 2016-04-27 | 广西玉柴机器股份有限公司 | Engine electric-controlled hydraulic pressure gas distribution system |
| CN103953427A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Electro-hydraulic driving exhaust mechanism |
| CN107313828A (en) * | 2017-08-31 | 2017-11-03 | 吉林大学 | A kind of electric machine controlled hydraulic-driven variable valve actuator for air |
| WO2019100199A1 (en) * | 2017-11-21 | 2019-05-31 | 白保忠 | Hydraulic gas distribution device for internal combustion engine, driving method thereof, and internal combustion engine having hydraulic gas distribution |
| CN111156064A (en) * | 2019-12-25 | 2020-05-15 | 浙江吉利新能源商用车集团有限公司 | Electric control valve structure and engine |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130508 Termination date: 20161107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |