CN203009094U - Electrical-control gas injecting system based on hydraulic principle - Google Patents
Electrical-control gas injecting system based on hydraulic principle Download PDFInfo
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- CN203009094U CN203009094U CN2012207492658U CN201220749265U CN203009094U CN 203009094 U CN203009094 U CN 203009094U CN 2012207492658 U CN2012207492658 U CN 2012207492658U CN 201220749265 U CN201220749265 U CN 201220749265U CN 203009094 U CN203009094 U CN 203009094U
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- metering valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses an electrical-control gas injecting system based on a hydraulic principle. The electrical-control gas injecting system comprises an electrical-control pulse hydraulic pump part and a gas injecting metering valve; the electrical-control pulse hydraulic pump part consists of a power cam, a housing, a hydraulic plunger and barrel assembly, a solenoid valve and an electrical-control order unit, wherein a three-way oil path is arranged in the housing; the hydraulic plunger and barrel assembly and the solenoid valve are respectively arranged in two branch oil paths; the other branch oil path which is used as a hydraulic driving force source is connected to the gas injecting metering valve and is used for driving a valve core of the gas injecting metering valve to be opened and closed by virtue of the hydraulic action; the hydraulic plunger and barrel assembly is used for outputting hydraulic power to the three-way oil path; and an output terminal of the electrical-control order unit is electrically connected with the solenoid valve. According to the electrical-control gas injecting system based on the hydraulic principle, disclosed by the utility model, a large-flow high-speed gas injecting system is realized by utilizing the high-power density of the electrical-control hydraulic pump and the fast response of a hydraulic driving gas valve by virtue of an electrical-control adjusting technology, so that the electrical-control and the hydraulic control are precisely matched.
Description
Technical field
The utility model relates to gas-jet technique field, a kind of electric control gas injection system based on hydraulic principle specifically.
Background technique
The gasometry injection valve has major application and is worth.But because the density of gas is lower, related size, the mass inertia of the valve that needs when injection flow is larger are also larger; The response time properties of simultaneous quantitative injection valve is also one of crucial performance index.Yet motional inertia and time response are the inherent features that conditions each other, and particularly larger aero operating pressure can open and close motion to metering valve and produce inhibition, has formed thus technological difficulties.When for example heavy internal-combustion engine adopts gaseous fuel, need injection valve to have larger fuel feed (can reach every circulation more than 200 milligrams), the opening and closing response time (adapt to per minute 2000 and turn above operating mode) that needs simultaneously injection valve to have to be exceedingly fast.The general high speed electromagnetic gas spray valve of Electromagnetic Drive that adopts only can adapt to less traffic requirement and lower gas pressure condition, and the high-speed quantitative that can't satisfy under the requirement of larger flow and elevated pressures is sprayed.
The model utility content
The utility model proposes the electric control pulse pump based on hydraulic principle--the high velocity jet of air valve form, the electric control gas injection system of large measures range, purpose is to solve above-mentioned technological difficulties.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of electric control gas injection system based on hydraulic principle is comprised of electric control pulse oil hydraulic pump part and gas spraymeter amount valve, it is characterized in that, described gas sprays metering valve and carry out injection action under the driving of electric control pulse oil hydraulic pump part;
Electric control pulse oil hydraulic pump part is comprised of power cam, housing, hydraulic plunger couple, solenoid valve, automatically controlled command unit, has the threeway oil circuit in described housing, and in two oil circuits, hydraulic plunger couple and solenoid valve are installed respectively, an other oil circuit is connected to gas as hydraulic driving power source and sprays metering valve and utilize the hydraulic pressure propellant to spray the switching motion of metering valve core, described hydraulic plunger couple under the driving of power cam according to the time--quantitative rule output hydraulic pressure power in the threeway oil circuit; The Out let of automatically controlled command unit is electrically connected to solenoid valve and regulates the aforementioned hydraulic rule by solenoid valve and control the keying that gas sprays metering valve, in order to control opening and closing time and opening degree that gas sprays metering valve, encourage the corresponding gas of described solenoid valve to spray metering valve and close, both synchronization motion.
Gas sprays metering valve and is comprised of valve body, hydraulic driving part, metering valve core, resetting means, gas access runner and gas ejection ports runner, described metering valve core, valve body coordinate formation gas to spray the restraining link with gas access runner and gas ejection ports runner, and are provided with resetting means between metering valve core and valve body; Described hydraulic driving part directly is connected with metering valve core and is controlled by electric-controlled hydraulic pulse pump hydraulic driving partly.
Described gas sprays metering valve and the electric control pulse oil hydraulic pump is partly integral type.
Described gas sprays metering valve and is connected by hydraulic tube with electric control pulse oil hydraulic pump part.
Described power cam have with regularly, the cam profile that is complementary of quantitative hydraulic requirement, during the course with original input power and at regular time and quantity parameter be converted into hydraulic pressure.
Described resetting means is spring.
Described metering valve core is guiding valve or cone valve.
Valve body place, described hydraulic driving part place is provided with the displacement limiting mechanism of overflow mode with the unlatching greatest limit of constraint metering valve core.
The beneficial effects of the utility model are: by the high power density of electric control pulse oil hydraulic pump and the fast-response of hydraulic driving air valve, utilize automatically controlled regulation technology to make gas dosing spray and be opened into the controlled process of closing from spool, regulate flexibly and accurately injection timing parameter and quantity factor.Namely coordinate with the accurate of hydraulic control technology by automatically controlled, realize large flow, two-forty gas injection system.
Description of drawings
Fig. 1-1 is the installation drawing (spray regime) of embodiment one ejecting system;
Fig. 1-2 is the installation drawing (stop-spraying moment) of embodiment one ejecting system;
Fig. 2 is the installation drawing of embodiment two ejecting system;
Fig. 3 is the ejecting system theory diagram;
Fig. 4 is electric-controlled hydraulic gas injection system control characteristic.
In figure: 10 automatically controlled command units, 11 housings, 12 hydraulic plunger couples, 13 solenoid valves, 14 threeway oil circuits, 15 power cams, 21 valve bodies, 22 hydraulic driving parts, 23 metering valve cores, 24 resetting means, 25 gas access runners, 26 gas ejection ports runners, 3 hydraulic tubes.
Embodiment
In conjunction with realizing that technology path further illustrates the principle of this model utility.
As accompanying drawing 1-1, Fig. 1-2, shown in Figure 3, a kind of electric control gas injection system based on hydraulic principle, be comprised of electric-controlled hydraulic pulse pump part and gas spraymeter amount valve, gas sprays metering valve and carry out injection action under the driving of electric-controlled hydraulic pulse pump part, and principle is as follows:
Electric control pulse pump part can be also the forms such as electrically controlled plunger pump, electronic control dispensing pump, the hydraulic pressure that generation meets the expected requirements, by automatically controlled regulation technology, make the single gas dosing spray and begin to be opened into the controlled process of closing fully from metering valve core, realize injection timing parameter and quantity factor adjusting flexibly and accurately.
Electric control pulse oil hydraulic pump part from shell 11, hydraulic plunger couple 12, solenoid valve 13, automatically controlled command unit 10, power cam 15 form, has threeway oil circuit 14 in housing, and in two oil circuits, hydraulic plunger couple 12 and solenoid valve 13 are installed respectively, an other oil circuit is connected to gas as hydraulic driving power source and sprays metering valve.
The Out let of automatically controlled command unit 10 and solenoid valve 13 are electrically connected and pass through the opening and closing time of solenoid valve 13 adjustments of gas injection metering valves, keying by solenoid valve 13 comes the 14 inner time periods that produce hydraulic pressure of intercepting threeway oil circuit on time shaft, and acts on gas injection metering valve.
As Figure 1-1, gas injection metering valve and electric control pulse oil hydraulic pump are partly integrated is parts, be comprised of valve body 21, hydraulic driving part 22, metering valve core 23, resetting means 24, gas access runner 25 and gas ejection ports runner 26, metering valve core 23 is guiding valve or cone valve.Metering valve core, valve body coordinate formation gas to spray the restraining link with gas access runner and gas ejection ports runner, and are provided with resetting means 24 between metering valve core and valve body, and resetting means is Compress Spring.Hydraulic driving part 22 is structure as a whole with metering valve core 23 and is controlled by electric control pulse oil hydraulic pump hydraulic driving power partly, that is to say that the hydraulic coupling that electric control pulse oil hydraulic pump part threeway oil circuit produces acts on metering valve core 23 by hydraulic driving part 22, forces the metering valve core opening and closing.
Under normality, solenoid valve is in opening state, and power cam is in the inoperative curve state; Comprise the steps,
Step 1, power cam drive the hydraulic plunger couple and begin to compress the hydraulic oil that enters in oil circuit, and hydraulic oil turned back to fuel tank and can not set up the hydraulic driving effect by solenoid valve because solenoid valve is in opening state this moment.Electric-controlled hydraulic gas injection system control characteristic as shown in Figure 4, power cam has the characteristic of opening fast.Less aperture instruction, the corresponding less hydraulic pressure duration.
Step 2, in the hydraulic plunger couple is advanced compression hydraulic oil stroke, " the injection beginning instruction " of automatically controlled command unit makes closed electromagnetic valve to the overflow of fuel tank, thereby make hydraulic pressure set up and export to hydraulic driving part, produce controlled straight line motion so that gas sprays metering valve; Because solenoid valve makes the metering valve core start-up time controlled to the regulating action of hydraulic pressure oil mass.
Step 3, metering valve core becomes open mode, and combustion gas gas enters gas jet exit runner along the gas access runner by the metering valve core of opening and sprays; Electric-controlled hydraulic gas injection system control characteristic has the Timing characteristic as shown in Figure 4, and in larger regulation scope, the gas emitted dose is mainly regulated by injection duration.Hydraulic driving part also keeps metering valve core to open under the cooperation of cam mechanism and the hydraulic displacement limit.The displacement that the metering valve core opening process forms causes the resetting means resiliently deformable and accumulates deformation-energy.
Step 4, in the process that gas injection metering valve is held open, when automatically controlled command unit sends " injection END instruction " to solenoid valve, solenoid valve is opened hydraulic oil to the also effect of end to hydraulic driving part of overflow of fuel tank, resetting means discharges the resiliently deformable energy and acts on spool and drive hydraulic driving part to the opposite direction motion of opening process until cut out, and completes once and sprays.
Because of solenoid valve to the regulating action of hydraulic pressure oil mass make the metering valve core shut-in time and opening degree controlled.
At last, after power cam finished the acting phase place, the hydraulic plunger couple was also leaned on the recovery mechanism's change action direction of self and is replenished hydraulic oil, until recover cyclic initial states.
In this process, power cam with original input power and at regular time and quantity parameter role in the hydraulic plunger couple and be converted into hydraulic pressure, regulating action by solenoid valve comprises the moment of unlatching and the degree of unlatching, intercepts on time shaft, drives metering valve core and opens and closes.
The displacement that the metering valve core opening process forms causes the resetting means resiliently deformable and accumulates deformation-energy, simultaneously hydraulic driving part makes opening degree controlled because of solenoid valve to the regulating action of hydraulic pressure oil mass, and stays open under the cooperation of power cam and the hydraulic displacement limit.
When automatically controlled command unit sends " injection END instruction " to solenoid valve, solenoid valve is opened hydraulic oil to the also effect of end to hydraulic driving part of overflow of fuel tank, and resetting means release resiliently deformable energy acts on spool and drives hydraulic driving part and moves until close to the opposite direction of opening process.After power cam finished the acting phase place, the fuel feed pump plunger couple also changed action direction and cancels hydraulic oil output along with power cam by the recovery mechanism of self, completes a course of injection until recover cyclic initial states.
Embodiment two
As shown in Figure 2, described gas sprays metering valve and partly is connected by hydraulic tube 3 with the electric control pulse oil hydraulic pump, for split type, can satisfy multi-point injection and control.
Embodiment recited above is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; the relevant technical staff in the field all should expand in protection domain as determined in the utility model claims various distortion of the present utility model and improvement.
Claims (8)
1. the electric control gas injection system based on hydraulic principle, be comprised of electric control pulse oil hydraulic pump part and gas spraymeter amount valve, it is characterized in that, described gas sprays metering valve and carry out injection action under the driving of electric control pulse oil hydraulic pump part;
Electric control pulse oil hydraulic pump part is comprised of power cam, housing, hydraulic plunger couple, solenoid valve, automatically controlled command unit, has the threeway oil circuit in described housing, and in two oil circuits, hydraulic plunger couple and solenoid valve are installed respectively, an other oil circuit is connected to gas as hydraulic driving power source and sprays metering valve and utilize the hydraulic pressure propellant to spray the switching motion of metering valve core, described hydraulic plunger couple under the driving of power cam according to the time--quantitative rule output hydraulic pressure power in the threeway oil circuit; The Out let of automatically controlled command unit is electrically connected to solenoid valve and regulates the aforementioned hydraulic rule by solenoid valve and control the keying that gas sprays metering valve.
2. a kind of electric control gas injection system based on hydraulic principle according to claim 1, it is characterized in that, described gas sprays metering valve and is comprised of valve body, hydraulic driving part, metering valve core, resetting means, gas access runner and gas ejection ports runner, described metering valve core, valve body coordinate formation gas to spray the restraining link with gas access runner and gas ejection ports runner, and are provided with resetting means between metering valve core and valve body; Described hydraulic driving part directly is connected with metering valve core and is controlled by electric-controlled hydraulic pulse pump hydraulic driving partly.
3. a kind of electric control gas injection system based on hydraulic principle according to claim 1 and 2, is characterized in that, described gas sprays metering valve and the electric control pulse oil hydraulic pump is partly integral type.
4. a kind of electric control gas injection system based on hydraulic principle according to claim 1 and 2, is characterized in that, described gas sprays metering valve and is connected by hydraulic tube with electric control pulse oil hydraulic pump part.
5. a kind of electric control gas injection system based on hydraulic principle according to claim 1, is characterized in that, described power cam has the cam profile that is complementary with timing, quantitative hydraulic requirement.
6. a kind of electric control gas injection system based on hydraulic principle according to claim 2, is characterized in that, described metering valve core is guiding valve or cone valve.
7. a kind of electric control gas injection system based on hydraulic principle according to claim 2, is characterized in that, valve body place, described hydraulic driving part place is provided with the displacement limiting mechanism of overflow mode with the unlatching greatest limit of constraint metering valve core.
8. a kind of electric control gas injection system based on hydraulic principle according to claim 2, is characterized in that, described resetting means is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207492658U CN203009094U (en) | 2012-12-29 | 2012-12-29 | Electrical-control gas injecting system based on hydraulic principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207492658U CN203009094U (en) | 2012-12-29 | 2012-12-29 | Electrical-control gas injecting system based on hydraulic principle |
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| Publication Number | Publication Date |
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| CN203009094U true CN203009094U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012207492658U Withdrawn - After Issue CN203009094U (en) | 2012-12-29 | 2012-12-29 | Electrical-control gas injecting system based on hydraulic principle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075283A (en) * | 2012-12-29 | 2013-05-01 | 济南威度电子科技有限公司 | Hydraulic principle-based electrical control gas jet system and jet method |
| CN105332826A (en) * | 2015-11-27 | 2016-02-17 | 哈尔滨工程大学 | Leakage-free electromagnetic-control fuel gas ejection device |
| CN107740735A (en) * | 2017-10-26 | 2018-02-27 | 重庆红江机械有限责任公司 | A kind of electro-hydraulic linkage gas valve |
| WO2020222993A1 (en) * | 2019-05-02 | 2020-11-05 | Caterpillar Inc. | Cam actuated gas admission valve with electro-hydraulic trim control |
-
2012
- 2012-12-29 CN CN2012207492658U patent/CN203009094U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075283A (en) * | 2012-12-29 | 2013-05-01 | 济南威度电子科技有限公司 | Hydraulic principle-based electrical control gas jet system and jet method |
| CN103075283B (en) * | 2012-12-29 | 2015-09-30 | 济南威度电子科技有限公司 | A kind of electric control gas injection system based on hydraulic principle and injection method |
| CN105332826A (en) * | 2015-11-27 | 2016-02-17 | 哈尔滨工程大学 | Leakage-free electromagnetic-control fuel gas ejection device |
| CN105332826B (en) * | 2015-11-27 | 2018-08-17 | 哈尔滨工程大学 | No leakage electromagnetic control type fuel gas ejecting device |
| CN107740735A (en) * | 2017-10-26 | 2018-02-27 | 重庆红江机械有限责任公司 | A kind of electro-hydraulic linkage gas valve |
| WO2020222993A1 (en) * | 2019-05-02 | 2020-11-05 | Caterpillar Inc. | Cam actuated gas admission valve with electro-hydraulic trim control |
| US11566545B2 (en) | 2019-05-02 | 2023-01-31 | Caterpillar Inc. | Cam actuated gas admission valve with electro-hydraulic trim control |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20150930 |
|
| RGAV | Abandon patent right to avoid regrant |