CN205876481U - Injection -type engine air intake system - Google Patents
Injection -type engine air intake system Download PDFInfo
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- CN205876481U CN205876481U CN201620854367.4U CN201620854367U CN205876481U CN 205876481 U CN205876481 U CN 205876481U CN 201620854367 U CN201620854367 U CN 201620854367U CN 205876481 U CN205876481 U CN 205876481U
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- air
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- injection
- pressure
- electromotor
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Abstract
The utility model discloses an injection -type engine air intake system comprises engine electric control unit, transmission, air pressurization memory system and air injection system, and air pressurization memory system comprises air pump, gas holder, manometer and bypass relief valve, and the air pump is accepted the engine output energy of transmission transmission and is given air pressurization, the bypass relief valve is arranged in restricting gas holder air pressure, but air injection system includes high -speed solenoid valve, flowmeter and the variable nozzle that links to each other with the engine electric control unit, but through engine electric control unit control high -speed solenoid valve and variable nozzle, control and revise the air input. Admitting air the engine with traditional valve structure and comparing, the simple structure of this system, control is accurate, the repacking is convenient, provides a neotype engine air inlet mode. In addition, it is high to spray the air pressure who gets into the engine, can do work to the engine to the recycle section energy.
Description
Technical field
This utility model belongs to engine intake duct field, is specifically related to a kind of injection-type engine gas handling system.
Background technology
Internal combustion engine is that the thermal efficiency is the highest, unit volume and the maximum prime mover of power-weight ratio density, applies the widest
General.However as the day by day exhausted of world's fossil energy and the continuous deterioration of environmental resource, internal combustion engine needs satisfied tighter
The Abgasgesetz of lattice and oil consumption requirement.
Traditional combustion engine uses the actuated by cams valve of fixing molded line, and this is it cannot be guaranteed that the discharge of internal combustion engine and oil consumption are in institute
Having operating point all to reach optimal, the most most of internal combustion engines all use changeable air valve technology to optimize discharge, reduce oil consumption.
Changeable air valve technology includes variable gas distribution technology based on camshaft and without camshaft distribution technology, although the former mechanism is simple,
Response is rapid, but can not be the most variable；The latter can realize the most variable of valve, but controls complexity, apparatus expensive.
Inspired by compressed air engine concept, cancelled admission gear based on valve, used air in-cylinder direct-jet
Mode air inlet, traditional valve admission gear can be avoided to control valve timing and the difficult point of lift.Injection gas handling system has control
System is accurate, respond quick advantage, uses the mode of injection air inlet can accurately control the air inflow of electromotor.Starting at present
Machine field, gas ejecting system is mainly used in gaseous fuel injection and the compressed air engine expansion stroke high pressure sky of conventional engines
The injection of gas, but gaseous fuel injection system often expulsion pressure is too low, pulsewidth is less, and pressure-air expulsion pressure mistake
Height, pulsewidth are relatively big, rarely have the report that gas ejecting system is used for conventional engines air inlet the most both at home and abroad.
Utility model content
The purpose of this utility model is to provide a kind of injection-type engine gas handling system, and this system can solve the problem that tradition spray
Gas system expulsion pressure and the inappropriate problem of injection pulse width.
In order to solve above-mentioned technical problem, a kind of injection-type engine gas handling system that the utility model proposes, by starting
Electrical Control unit, actuating device, air pressurized storage system and air-injection system composition, described air pressurized storage system by
Air pump, air accumulator, Pressure gauge and bypass relief valve composition, described air pump is connected with actuating device, and described air pump accepts described biography
The electromotor output energy of dynamic device transmission is to air pressurized；Described Pressure gauge is for monitoring the air pressure in air accumulator；Institute
State bypass relief valve for limiting the maximum pressure of air in described air accumulator, intrinsic pressure when described air accumulator exceedes limit value
Time, described bypass relief valve is opened and is carried out pressure release of exitting；Described air-injection system includes being connected with engine electric-controlled unit
High-speed electromagnetic valve, effusion meter and variable-area nozzle；The charge flow rate of described flowmeter survey electromotor, and data are passed to send out
Motivation ECU, for control and the correction of air inflow；Described high-speed electromagnetic valve accepts the instruction of engine electric-controlled unit, and
Jet pulsewidth and injection timing according to specifying spray into air in electromotor；Described variable-area nozzle is according to the work of electromotor
Condition requirement, accepts engine electric-controlled unit instruction, changes nozzle cross-section, thus be controlled air inflow further and revise.
This utility model injection-type engine gas handling system, wherein, the swept volume of described air accumulator is more than mutually synthermal
Maximum volume of air needed for cycle of engine under pressure condition.
Described variable-area nozzle is arranged on cylinder lid, directly sprays into air to engine combustion indoor.
Injection-type engine gas handling system described in the utility model is particularly well-suited to fuel in-cylinder direct fuel-injection engine.
Compared with prior art, the beneficial effects of the utility model are: injection-type engine described in the utility model is entered
In gas system, air pressurized is provided power by electromotor, uses bypass relief valve to limit air pressure in air accumulator, by controlling
High-speed electromagnetic valve and variable-area nozzle control air emitted dose, whole system simple in construction, control accurately, repacking convenient, replace
For the technical difficulty that can solve the problem that traditional valve admission gear after conventional engines gas handling system.Additionally, enter with conventional cam shaft
Gas system is compared, and the air pressure that this system is injected into cylinder is higher, can do work electromotor, thus reclaim electromotor and drive
Take offence the portion of energy of pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of engine spray gas handling system described in the utility model；
In figure:
1-engine crankshaft 2-connecting rod 3-piston 4-variable-area nozzle
5-effusion meter 6-high-speed electromagnetic valve 7-bypasses relief valve 8-Pressure gauge
9-air accumulator 10-air pump 11-actuating device
Detailed description of the invention
With specific embodiment, technical solutions of the utility model are described in further detail below in conjunction with the accompanying drawings, described
This utility model is only explained by specific embodiment, not in order to limit this utility model.
As it is shown in figure 1, a kind of injection-type engine gas handling system that the utility model proposes, by engine electric-controlled unit,
Actuating device, air pressurized storage system and air-injection system composition.
Described air pressurized storage system is made up of air pump 10, air accumulator 9, Pressure gauge 8 and bypass relief valve 7, described gas
Pump 10 is connected with actuating device, and described air pump 10 accepts the electromotor output energy of described actuating device transmission to air pressurized；
The swept volume of described air accumulator 9 is maximum volume of air, described pressure more than needed for cycle of engine under the conditions of identical temperature, pressure
Power table 8 is for monitoring the air pressure in air accumulator 9；Described bypass relief valve 7 is for limiting in described air accumulator 9 air
High pressure, when described air accumulator 9 intrinsic pressure exceedes limit value, described bypass relief valve 7 is opened and is carried out pressure release of exitting.
Described air-injection system includes high-speed electromagnetic valve 6, effusion meter 5 and variable section being connected with engine electric-controlled unit
Face nozzle 4；Described variable-area nozzle 4 is arranged on cylinder lid, directly sprays into air to engine combustion indoor, institute
State effusion meter 5 and measure the charge flow rate of electromotor, and data are passed to engine electric-controlled unit, for the control of air inflow with repair
Just；Described high-speed electromagnetic valve 6 accepts the instruction of engine electric-controlled unit, and according to the jet pulsewidth specified and injection timing to sending out
Air is sprayed in motivation；Described variable-area nozzle 4, according to the working condition requirement of electromotor, accepts engine electric-controlled unit instruction,
Change nozzle cross-section, thus further air inflow be controlled and revise.
This utility model injection-type engine gas handling system is particularly well-suited to fuel in-cylinder direct fuel-injection engine.Using this reality
During with Novel jet-type engine aspirating system, the traditional valve admission gear injected formula gas handling system carrying electromotor is replaced
Generation, but traditional valve exhaust gear still retains.
The work process of this utility model injection-type engine gas handling system is:
The output power of engine crankshaft 1 is passed to air pump 10 by actuating device 11, and air is pressurizeed by air pump 10, deposits
Storage is in air accumulator 9, and by the monitoring of Pressure gauge 8, bypass relief valve 7 limits the maximum pressure of air in air accumulator 9, works as pressure
Exceed ceiling value time, bypass relief valve 7 is opened, and makes in the range of in air accumulator 9, pressure is maintained at pressure limit.
At engine induction stroke, control time for spraying and injection pulse width by controlling high-speed electromagnetic valve 6, use effusion meter
5 real time record charge flow rates, when the working conditions change of electromotor causes air inlet to require acute variation, spray by changing variable cross section
The area of section of mouth 4, thus air inflow is modified.
After air inlet terminates, variable-area nozzle 7 completely encloses.The pressure-air spraying into engine combustion indoor will be to work
Plug 3 (being connected with engine crankshaft 1 by connecting rod 2) acting, is equivalent to reclaim electromotor and drives the portion of energy of air pump.Work as air inlet
Stroke terminates, and when i.e. engine piston 3 is in lower dead center, in-cylinder pressure should be that a suitable value (is compared natural aspiration to send out
Motivation should be close to 1bar, and comparing engine with supercharger should be suitable with boost pressure), this is the maximal pressure of design air accumulator 9
The standard of power limit value.
Although being described this utility model above in conjunction with accompanying drawing, but this utility model is not limited to above-mentioned
Detailed description of the invention, above-mentioned detailed description of the invention is only schematic rather than restrictive, the ordinary skill of this area
Personnel are under enlightenment of the present utility model, in the case of without departing from this utility model objective, it is also possible to make many variations, this
Within belonging to protection of the present utility model.
Claims (4)
1. an injection-type engine gas handling system, by engine electric-controlled unit, actuating device, air pressurized storage system and sky
Gas jet system forms, it is characterised in that:
Described air pressurized storage system is made up of air pump (10), air accumulator (9), Pressure gauge (8) and bypass relief valve (7), institute
Stating air pump (10) to be connected with actuating device, described air pump (10) accepts the electromotor output energy of described actuating device transmission to sky
Gas pressurizes；Described Pressure gauge (8) is used for monitoring the air pressure in air accumulator (9)；Described bypass relief valve (7) is used for limiting institute
State the maximum pressure of air in air accumulator (9), when described air accumulator (9) intrinsic pressure exceedes limit value, described bypass relief valve
(7) open carry out exit pressure release；
Described air-injection system includes high-speed electromagnetic valve (6), effusion meter (5) and variable section being connected with engine electric-controlled unit
Face nozzle (4)；The charge flow rate of electromotor measured by described effusion meter (5), and data is passed to engine electric-controlled unit, be used for into
The control of tolerance and correction；Described high-speed electromagnetic valve (6) accepts the instruction of engine electric-controlled unit, and according to the jet arteries and veins specified
Wide and injection timing sprays into air in electromotor；Described variable-area nozzle (4), according to the working condition requirement of electromotor, accepts to send out
Motivation ECU instructs, and changes nozzle cross-section, thus is controlled air inflow further and revises.
Injection-type engine gas handling system the most according to claim 1, it is characterised in that: the work of described air accumulator (9) is held
Long-pending more than maximum volume of air needed for cycle of engine under the conditions of identical temperature, pressure.
Injection-type engine gas handling system the most according to claim 1, it is characterised in that: described variable-area nozzle (4) is pacified
It is contained on cylinder lid, directly sprays into air to engine combustion indoor.
Injection-type engine gas handling system the most according to claim 1, it is characterised in that: described electromotor is straight in fuel tank
Fuel-injection engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620854367.4U CN205876481U (en) | 2016-08-05 | 2016-08-05 | Injection -type engine air intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620854367.4U CN205876481U (en) | 2016-08-05 | 2016-08-05 | Injection -type engine air intake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876481U true CN205876481U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620854367.4U Active CN205876481U (en) | 2016-08-05 | 2016-08-05 | Injection -type engine air intake system |
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| Country | Link |
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| CN (1) | CN205876481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089403A (en) * | 2016-08-05 | 2016-11-09 | 天津大学 | Injection-type engine gas handling system |
-
2016
- 2016-08-05 CN CN201620854367.4U patent/CN205876481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089403A (en) * | 2016-08-05 | 2016-11-09 | 天津大学 | Injection-type engine gas handling system |
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