CN201221415Y - Air controlling and metering mechanism of electric spraying type engine - Google Patents
Air controlling and metering mechanism of electric spraying type engine Download PDFInfo
- Publication number
- CN201221415Y CN201221415Y CNU2008200753260U CN200820075326U CN201221415Y CN 201221415 Y CN201221415 Y CN 201221415Y CN U2008200753260 U CNU2008200753260 U CN U2008200753260U CN 200820075326 U CN200820075326 U CN 200820075326U CN 201221415 Y CN201221415 Y CN 201221415Y
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- idling
- air
- control
- air inlet
- throttle body
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Abstract
The utility model discloses an air control and measuring mechanism of an electric spraying type engine which includes an air damper body component, an idle bypass valve component as well as a temperature and air inlet subpressure integral measuring device; an air damper plate is arranged in the air damper body; the opening of the air damper is controlled by leading the air damper to rotate through controlling a rocker; the idle air inlet hole channel of the body of the idle bypass valve and the idle air inlet hole channel are respectively arranged at the two sides of the air damper plate; the idle air inlet hole channel is connected through or cut off through the on-off of a high-frequency solenoid pilot actuated valve; the air damper body component and the idle bypass valve component are separately arranged for forming two respectively independent and dismountable parts. The air control and measuring mechanism of an electric spraying type engine can be suitable for different demands and is conveniently maintained; the body of the idle bypass valve can realize the correction and regulation on the idle rotary speed of the engine; the temperature and air inlet subpressure integral measuring device is integrated together with the air damper body and can carry out accurate measurement on the air inlet state of the engine; judging and correction calculation is carried out on the air inlet flux by an ECU for timely adjusting the electric spraying parameters and meeting the demands on the working situation of the electric spraying engine.
Description
Technical field
The invention belongs to the technical field of EFI formula motor, be specifically related to a kind of throttle body assembly and idling bypass valve assembly branch are arranged, form independently detachable separately two-part, thereby go for different use occasions and control of the air of the EFI formula motor being convenient to more keep in repair and metrological service.
Background technique
Electronic fuel injection engine adopts electric control device to replace the fuel feeding process that traditional mechanical system (as Carburetor) is controlled motor.Electric injection system is exactly with signal input electric control devices such as the rotating speed of the temperature of motor, air fuel ratio, throttle situation, motor, load, crank position, traveling state of vehicle by various sensors, electric control device calculates according to these signal parameters and the control needed fuel injection quantity of each cylinder of motor and the oil spout moment, fuel is injected in the suction tude by oil sprayer under certain pressure atomizes, and mix with the air draught that enters, enter combustion chambers burn, thereby guarantee that motor and catalytic converter always work in the optimum state.This control by electronics is called electronic fuel injection engine with fuel by the motor that oil sprayer sprays in the engine aspirating system.Electronic fuel injection engine can be divided into multi-point injection and single-point discharge by oil sprayer quantity, and each cylinder has an oil sprayer in the motor, and english abbreviation is MPI, claims multi-point injection; The shared oil sprayer english abbreviation SPI of the several cylinders of motor claims single-point discharge.
EFI formula motor is compared with carburetor engine, outstanding advantage is accurately to control the quality of mixed gas, guarantees that the fuel combustion in the cylinder is complete, reduces toxic emission and fuel consume, it has also improved the charging efficiency of motor simultaneously, has increased the power and the moment of torsion of motor.
When electronic fuel injection engine was moved, air entered suction tude by air-strainer through throttle body.Throttle body is controlled the air delivery volume by the switching of solar term door-plate.Temperature and air-intake negative-pressure measuring device are set on the throttle body, the air condition in the suction tude is passed to ECU.
The rotating speed of motor minimum steady running under zero load situation is called engine idle.When under idling operation, working, only need overcome inherent surface friction drag, and external no-output power.But the height of engine idle not only seriously influences oil consumption and (facts have proved, in the big road up train of traffic flow density, the idling oil consumption account for total oil consumption 30%), to influence is to a certain degree all arranged in exhaust emission, warm-up period and working life etc. of motor.Under idling operation, only rely on the switching of solar term door-plate can't satisfy the motor operating mode needs of this moment, therefore need utilize the idling bypass valve assembly to provide certain air inflow for motor, recently control the air mass flow of idling by-pass duct by the duty of ECU control idling bypass valve assembly medium-high frequency solenoid valve, make motor regulate working state automatically according to idling.
But, throttle body of the prior art does not have the design of idling bypass mostly, under engine start or idling operation, can't realize accurate measurement and control to air mass flow, cause under the idling operation real-world operation state operational situation that departs from objectives, even the design of idling bypass is arranged, throttle body and idling by-pass valve body also are the design of integral structure mostly, and adopt the stepper motor pattern to control more, the manufacture cost and the difficulty of throttle body have so not only been increased, design difficulty and the cost of ECU (Electrical Control Unit) ECU have also been increased, and under different use occasions, the very flexible of using must be changed entire mechanism when wherein some structure breaks down, increased the maintenance cost of product.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind of throttle body assembly and idling bypass valve assembly branch is arranged, form independently detachable separately two-part, thereby go for different use occasions and control of the air of the EFI formula motor being convenient to more keep in repair and metrological service.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The air control and the metrological service of EFI formula motor of the present invention comprise: throttle body assembly, idling bypass valve assembly, temperature and air-intake negative-pressure integral measuring device; Wherein the throttle body assembly comprises throttle body, throttle plate pin, solar term door-plate, operating rock arm, return spring and throttle position sensor, and the solar term door-plate is installed in the throttle body, by operating rock arm throttle plate pin is rotated and control throttle opening; The idling bypass valve assembly comprises high-frequency electromagnetic valve, idling by-pass valve body, micrometer adjusting screw and seal ring, the idling air inlet duct of idling by-pass valve body and the idling duct of giving vent to anger is separately positioned on solar term door-plate both sides, by the opening or close the idling by-pass duct is switched on or switched off of high-frequency electromagnetic valve, reach the purpose of variable adjustment idling air quantity; Throttle body assembly and idling bypass valve assembly branch are arranged, and form independently detachable separately two-part.
The present invention can also adopt following technical measures:
Described temperature and air-intake negative-pressure integral measuring device are arranged on the throttle body, and the position is positioned at solar term door-plate rear side.
Described throttle body is provided with the interface that is connected with canister control valve, is connected by the canister connecting tube between throttle body and the canister.
With the inner port position that is connected of idling by-pass valve body high-frequency electromagnetic valve is set in idling air inlet duct, opening or closing of idling bypass valve duct controlled in opening or closing of high-frequency electromagnetic valve, controls the idling air inflow with this.
Described idling air inlet is provided with micrometer adjusting screw in the duct, air mass flow is carried out matter regulate.
The port position of leading to idling bypass valve inside in idling air inlet duct is provided with high-frequency electromagnetic valve, and opening or closing of idling by-pass duct controlled in opening or closing of high frequency points magnet valve, controls the idling gas output with this.
Be provided with in the described idling by-pass valve body and lead to the give vent to anger fine setting passage in duct of idling, the air mass flow amount of carrying out of fine setting passage is regulated by micrometer adjusting screw.
The compound varied radius of many groups is adopted in the cross section of described solar term door-plate and throttle body internal gas flow passage.
Advantage and good effect that the present invention has are:
The air control and the metrological service of EFI formula motor of the present invention, throttle body assembly and idling bypass valve assembly branch are arranged, and form independently detachable separately two-part.The present invention goes for the different needs that use, and when breaking down, only needs to change the concrete member that breaks down, and is convenient to maintenance more; The micrometer adjusting screw of idling by-pass valve body can be finely tuned the idling air quantity, realizes the correction adjustment to the engine idle rotating speed.The present invention is directly installed on air-intake negative-pressure integral measuring device temperature with throttle body, can make accurate measurement to the engine charge state, and measurement result transferred to ECU, by ECU charge flow rate is made judgement and corrected Calculation, in time adjust the EFI parameter, inflammable mixture so that acquisition has suitable air fuel ratio satisfies electronic fuel injection engine operating mode needs.
Description of drawings
Fig. 1 is the air control of EFI formula motor of the present invention and the STRUCTURE DECOMPOSITION schematic representation of metrological service;
Fig. 2 is the sectional view of throttle body in air control and the metrological service of EFI formula motor of the present invention;
Fig. 3 is the structural representation of idling bypass assembly in air control and the metrological service of EFI formula motor of the present invention;
Fig. 4 is that the A-A of idling by-pass valve body in air control and the metrological service of EFI formula motor of the present invention is to sectional view;
Fig. 5 is that the B-B of idling by-pass valve body in air control and the metrological service of EFI formula motor of the present invention is to sectional view;
Fig. 6 is the sectional drawing of idling by-pass valve body in air control and the metrological service of EFI formula motor of the present invention.
Embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
As shown in Figure 1 to Figure 3, control of the air of EFI formula motor of the present invention and metrological service comprise: throttle body assembly 1, idling bypass valve assembly 2 and temperature and air-intake negative-pressure integral measuring device 3.Wherein the throttle body assembly comprises: throttle body 4, air valve shaft 5, solar term door-plate 6, operating rock arm 20, return spring 21 and throttle position sensor, solar term door-plate 6 is installed in the throttle body 4, by operating rock arm throttle plate pin is rotated and controls throttle opening; Idling bypass valve assembly 2 comprises high-frequency electromagnetic valve 8, idling by-pass valve body 9, micrometer adjusting screw 10 and seal ring 11, the idling air inlet duct 12 of idling by-pass valve body 9 and the idling duct 13 of giving vent to anger is separately positioned on solar term door-plate 6 both sides, by the opening or close the idling by-pass duct is switched on or switched off of high-frequency electromagnetic valve 8, reach the purpose of variable adjustment idling air quantity.Throttle body assembly 1 was arranged with the idling bypass valve assembly in 2 minutes, form independently detachable separately two-part, the idling bypass valve assembly can be installed on the throttle body assembly, the idling air inlet duct 12 of idling by-pass valve body and the idling duct 13 of giving vent to anger is separately positioned on solar term door-plate both sides, the port, both sides in the idling air inlet duct and the duct of giving vent to anger forms boss, corresponding with the position shape of groove that is provided with on the throttle body and bypass pore 19, by installing the air-flow path that seal ring or sealing gasket can make the idling bypass valve closely cooperate with throttle body and form the bypass that is communicated with additional.Temperature and air-intake negative-pressure integral measuring device 3 are set on throttle body, the position is positioned at solar term door-plate 6 rear sides, can make accurate measurement to the engine charge state, and measurement result transferred to ECU, by ECU charge flow rate is made judgement and corrected Calculation, in time adjust the EFI parameter, the inflammable mixture so that acquisition has suitable air fuel ratio satisfies electronic fuel injection engine operating mode needs.Throttle body is provided with the interface that is connected with canister control valve, be connected by canister connecting tube 16 between throttle body and the canister, fuel-steam in the fuel tank is adsorbed by the active carbon in the canister, when engine running, electronic control unit (ECU) is by the break-make of control activated carbon canister control valve, rely on degree of vacuum in the suction tude fuel-steam to be sucked in the intake duct of motor and burn, adopt fuel-steam control can reduce hydrocarbon and fuel saving in the atmosphere.Solar term door-plate 6 adopts the compound varied radius of many groups with the cross section of throttle body 4 internal gas flow passages 17, be that the solar term door-plate is not to adopt the regular circular shape, its edge is to adopt the circular arc of different radii to interconnect according to actual conditions to form, to obtain best regulating effect.
Be the idle state of control motor, can adopt the mechanical type closure to change the required air mass flow of idling, also can adopt high-frequency electromagnetic valve to control the flow of air by regulating stop screw.Adopting under the situation of high-frequency electromagnetic valve, independently air-flow path is being set, breaking down as solenoid valve and can adopt this air-flow path air inlet and manual tune is adopted in air inlet in a side of solenoid valve.
As Fig. 4, shown in Figure 5, port 20 positions of leading to idling bypass valve inside in idling air inlet duct will be provided with high-frequency electromagnetic valve, and it opens or closes opening or closing of control idling by-pass duct, controls the idling gas output with this.Simultaneously, be provided with in the idling by-pass valve body and lead to the give vent to anger fine setting passage 18 in duct of idling, regulate by the air mass flow amount of carrying out of 10 pairs of fine settings of micrometer adjusting screw passage.Promptly by high-frequency electromagnetic valve the idling gas output is accurately controlled, determined its gas output, the fine setting passage by micrometer adjusting screw control carries out the trace adjusting to gas output then.When solenoid valve breaks down can not normally open and close the time, gas can directly be discharged by the fine setting passage.
As shown in Figure 6, with the inner port position that is connected of idling by-pass valve body high-frequency electromagnetic valve will be set in idling air inlet duct 12, it opens or closes opening or closing of control idling bypass valve duct, controls the idling air inflow with this.Simultaneously, in idling air inlet duct, micrometer adjusting screw 10 is set, air mass flow is carried out matter regulate.The micrometer adjusting screw that is provided with in idling air inlet duct is the break-make of the whole air flue of may command both, also can cooperate with high-frequency electromagnetic valve under situation about opening, and with this gas flow in air flue is done accurately control.
Claims (8)
1, control of a kind of air of EFI formula motor and metrological service comprise: throttle body assembly, idling bypass valve assembly, temperature and air-intake negative-pressure integral measuring device; Wherein the throttle body assembly comprises throttle body, throttle plate pin, solar term door-plate, operating rock arm, return spring and throttle position sensor, and the solar term door-plate is installed in the throttle body, by operating rock arm throttle plate pin is rotated and control throttle opening; The idling bypass valve assembly comprises high-frequency electromagnetic valve, idling by-pass valve body, micrometer adjusting screw and seal ring, the idling air inlet duct of idling by-pass valve body and the idling duct of giving vent to anger is separately positioned on solar term door-plate both sides, opening or closing the idling by-pass duct is switched on or switched off by high-frequency electromagnetic valve, reach the purpose of variable adjustment idling air quantity, it is characterized in that: throttle body assembly and idling bypass valve assembly branch are arranged, and form independently detachable separately two-part.
2, control of the air of EFI formula motor according to claim 1 and metrological service, it is characterized in that: temperature and air-intake negative-pressure integral measuring device are arranged on the throttle body, and the position is positioned at solar term door-plate rear side.
3, the air of EFI formula motor according to claim 1 control and metrological service, it is characterized in that: throttle body is provided with the interface that is connected with canister control valve, is connected by the canister connecting tube between throttle body and the canister.
4, control of the air of EFI formula motor according to claim 1 and metrological service, it is characterized in that: with the inner port position that is connected of idling by-pass valve body high-frequency electromagnetic valve is set in idling air inlet duct, opening or closing of idling bypass valve duct controlled in opening or closing of high-frequency electromagnetic valve, controls the idling air inflow with this.
5, control of the air of EFI formula motor according to claim 4 and metrological service, it is characterized in that: the idling air inlet is provided with micrometer adjusting screw in the duct, air mass flow is carried out matter regulate.
6, control of the air of EFI formula motor according to claim 1 and metrological service, it is characterized in that: the port position of leading to idling bypass valve inside in idling air inlet duct is provided with high-frequency electromagnetic valve, opening or closing of idling by-pass duct controlled in opening or closing of high-frequency electromagnetic valve, controls the idling gas output with this.
7, the air of EFI formula motor according to claim 6 control and metrological service is characterized in that: be provided with in the idling by-pass valve body and lead to the give vent to anger fine setting passage in duct of idling, by micrometer adjusting screw the air mass flow amount of carrying out of fine setting passage is regulated.
8, control of the air of EFI formula motor according to claim 1 and metrological service is characterized in that: the compound varied radius of many groups is adopted in the cross section of solar term door-plate and throttle body internal gas flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200753260U CN201221415Y (en) | 2008-07-14 | 2008-07-14 | Air controlling and metering mechanism of electric spraying type engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200753260U CN201221415Y (en) | 2008-07-14 | 2008-07-14 | Air controlling and metering mechanism of electric spraying type engine |
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| Publication Number | Publication Date |
|---|---|
| CN201221415Y true CN201221415Y (en) | 2009-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200753260U Expired - Fee Related CN201221415Y (en) | 2008-07-14 | 2008-07-14 | Air controlling and metering mechanism of electric spraying type engine |
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| Country | Link |
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| CN (1) | CN201221415Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798975A (en) * | 2010-03-31 | 2010-08-11 | 力帆实业(集团)股份有限公司 | Throttle valve bypass air supply system |
| CN103807062A (en) * | 2014-01-22 | 2014-05-21 | 东风商用车有限公司 | Air compensation device of internal combustion engine |
| CN111026190A (en) * | 2019-12-13 | 2020-04-17 | 歌尔股份有限公司 | Micro-droplet discharging device and temperature control method thereof |
-
2008
- 2008-07-14 CN CNU2008200753260U patent/CN201221415Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798975A (en) * | 2010-03-31 | 2010-08-11 | 力帆实业(集团)股份有限公司 | Throttle valve bypass air supply system |
| CN103807062A (en) * | 2014-01-22 | 2014-05-21 | 东风商用车有限公司 | Air compensation device of internal combustion engine |
| CN103807062B (en) * | 2014-01-22 | 2015-12-09 | 东风商用车有限公司 | A kind of combustion air compensation device |
| CN111026190A (en) * | 2019-12-13 | 2020-04-17 | 歌尔股份有限公司 | Micro-droplet discharging device and temperature control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20130714 |