CN102628395B

CN102628395B - Electrodeless variable resonance air inlet system

Info

Publication number: CN102628395B
Application number: CN2012101227935A
Authority: CN
Inventors: 靖海国; 杨立平; 马修真; 宋恩哲; 王晓斌; 黄帅
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2012-04-24
Filing date: 2012-04-24
Publication date: 2013-07-31
Anticipated expiration: 2032-04-24
Also published as: CN102628395A

Abstract

The invention aims at providing an electrodeless variable resonance air inlet system, which comprises an air inlet main pipe, a resonance cavity outer cavity, a resonance cavity inner cavity, an air inlet manifold pipe, a rack and a driving device, wherein the air inlet main pipe is connected with the hollow resonance cavity outer cavity, the hollow resonance cavity inner cavity is partially sheathed in the resonance cavity outer cavity, the air inlet manifold pipe is connected with the resonance cavity inner cavity, the rack is arranged on the resonance cavity outer cavity, the driving device comprises a motor and a driving gear, the output end of a motor is connected with the driving gear, and the driving gear is connected with the rack for controlling the resonance cavity outer cavity and the resonance cavity inner cavity to do relevant linear movement. The electrodeless variable resonance air inlet system has the advantages that the resonance rotating speed of an engine is changed through continuously regulating the resonance size, better resonance effects can be respectively realized in the wider rotating speed range of the engine, the air inlet efficiency of the air engine is improved, so the output power is improved.

Description

Electrodeless variable resonant intake system system

Technical field

What the present invention relates to is a kind of gas handling system of engine art.

Background technique

Along with industrial expansion, the oil shortage problem is serious day by day, the technology that taps a new source of energy is imperative, the gaseous fuel aboundresources, wherein existing natural resources are as rock gas, the resource that the productive life association is also arranged, as petroleum gas, biogas, coal-seam gas etc., gaseous fuel has advantages such as exhaust emission is low, low price simultaneously, therefore develops the important directions that gas engine becomes the engine technology development.

At present, gas engine is mainly formed by diesel engine or gasoline engine refitting, because forming the gas of mixed gas formula gas engine suction cylinder outward, cylinder comprises air and two kinds of compositions of fuel gas, fuel gas occupies certain air inlet charge, make the gas engine amount of air drawn lack than diesel engine under the same operating mode and petrol engine, therefore the specific power of gas engine is usually than petrol engine and diesel engine low about 10%, the to-and-fro motion of periodic keying of four stroke engine intake valve and piston makes the gas of intake duct produce fluctuation clocklike, under a certain rotating speed, during the IO Intake Valve Opens of motor just is the crest of air inlet ripple, so just can utilize Wave energy to increase air inlet, thereby improve the power of gas engine, this rotating speed is the resonance rotating speed.The structure of it and gas handling system is relevant.Gas handling system mainly comprises intake manifold, resonant cavity and intake manifold's three parts, the structure that changes gas handling system comprises the shape and size that change each several part, relate to cooperation is installed, generally strengthen resonance effect by the length that changes intake manifold, resonant cavity and this three part of intake manifold.The structure that changes intake manifold can strengthen resonance effect effectively, the variable manifold length resonant intake system system that uses at present, adjust the manifold flow path according to engine operation condition, thereby change the length of intake manifold, but this system architecture is too fat to move, and can only realize one-level or two-stage variable manifold length, total length of tube gas handling system of variable air inlet and variable resonant cavity gas handling system also are to realize the limited number of time variable-length, and motor can not be realized resonance effect preferably under full operating mode.

Summary of the invention

The object of the present invention is to provide the electrodeless variable resonant intake system system of the specific power that improves gas engine.

The object of the present invention is achieved like this:

The electrodeless variable resonant intake system of the present invention system, it is characterized in that: comprise intake manifold, resonant cavity exocoel, resonant cavity inner chamber, intake manifold, tooth bar, drive unit, the intake manifold connects the resonant cavity exocoel of hollow, the resonant cavity inner chamber of hollow partly is sleeved in the resonant cavity exocoel, intake manifold connects the resonant cavity inner chamber, tooth bar is installed on the resonant cavity exocoel, described drive unit comprises motor and actuation gear, motor output end connects actuation gear, and actuation gear connects tooth bar control resonant cavity exocoel resonant cavity inner chamber and does linear relative movement.

The present invention can also comprise:

1, also comprises locating guide device and sealing gasket, the cuboid shape guide pad is set on the described locating guide device, the guiding groove that the ring packing ring recess is set on the resonant cavity inner chamber and cooperates with the cuboid shape guide pad, the relative movement of guiding groove and cuboid shape guide pad engagement limits resonant cavity exocoel resonant cavity inner chamber, sealing gasket is installed in the ring packing ring recess, the outer cavity wall fitted seal of sealing gasket resonant cavity.

2, described intake manifold comprises intake manifold epimere and intake manifold hypomere, intake manifold epimere lower end and intake manifold hypomere upper end are installed the rectangular adpting flange respectively, the intake manifold epimere is connected by the rectangular adpting flange with the intake manifold hypomere, the postive direction adpting flange that links to each other with motor is installed in intake manifold hypomere lower end, intake manifold epimere internal face is the circular arc of 90 degree, the internal face radial cross section is measure-alike circle, intake manifold hypomere inner chamber radial cross section by with intake manifold epimere joint circular excessively to the square of motor joint.

3, also comprise displacement transducer, described displacement transducer is the sliding type displacement transducer, comprises sensor base, measuring rod, attaching nut, and sensor base is fixed on the intake manifold, and measuring rod is fixed on the locating guide device by the attaching nut.

4, also comprise measurement and control unit, described measurement and control unit comprises motor control module and displacement transducer signal puocessing module, motor control module connects motor and drive motor rotates, the displacement transducer signal puocessing module connects displacement transducer, and the displacement transducer signal puocessing module obtains resonant cavity exocoel, resonant cavity cavity volume by displacement amount.

Advantage of the present invention is: the present invention all can realize resonance effect preferably by adjusting the resonance rotating speed of the stereomutation motor of resonance continuously in the broad engine speed range, improve the intake efficiency of gas engine, thereby improves output power.

Description of drawings

Fig. 1 is an overall construction drawing of the present invention;

Fig. 2 is resonant cavity outer-cavity structure figure;

Fig. 3 is the locating guide device structural drawing;

Fig. 4 is a gasket seal structural drawing between resonant cavity exocoel and locating guide device;

Fig. 5 is resonant cavity inner-cavity structure figure;

Fig. 6 is another view direction structural drawing of resonant cavity inner chamber;

Fig. 7 is an intake manifold hypomere structural drawing;

Gasket structure figure between Fig. 8 intake manifold upper end and intake manifold lower end adpting flange;

Fig. 9 is displacement sensor structure figure;

Figure 10 is driving device structure figure;

Figure 11 is the measurement and control unit schematic representation.

Embodiment

For example the present invention is done description in more detail below in conjunction with accompanying drawing:

In conjunction with Fig. 1, the electrodeless variable resonant intake system of the dynamo-electric control of gas system comprises intake manifold 1, resonant cavity exocoel 2, locating guide device 3, resonant cavity inner chamber 4, intake manifold epimere 5, intake manifold hypomere 6, displacement transducer 7, drive unit 8 and measurement and control unit 9, intake manifold's 1 resonant cavity exocoel 2 connects, resonant cavity exocoel 2 resonant cavity inner chambers 4 connect and compose resonant cavity, resonant cavity exocoel 2 and inner chamber 4 can be realized relative movement, they are by locating guide device 3 positioning and guidings, be tightly connected by seal ring, the tooth bar of a certain-length of resonant cavity exocoel 2 outer wall welding, tooth bar cooperates with drive unit 8, under measurement and control unit 9 controls, resonant cavity exocoel 2 drives through drive unit 8 and does straight line motion, the volume of resonant cavity changes, and by the displacement transducer 7 real-time relative positions that detect between exocoel 2 and the inner chamber 4, measurement and control unit 9 is according to the calculated signals resonant cavity volume of sensor 7.

In conjunction with Fig. 2, resonant cavity exocoel 2 is cast as one with intake manifold 1, and intake manifold's 1 one ends have adpting flange 17, are used for being connected with intake manifold's fore-end, and intake manifold's 1 internal face is cylindrical; Resonant cavity exocoel 2 outer wall are welded a tooth bar 16, in order to satisfy the needs of stepper motor installing space, tooth bar 16 1 ends stretch out exocoel 2, the length of stretching out is greater than the move distance of exocoel 2 with respect to inner chamber 4, the gear engagement of tooth bar and drive unit 8 is converted into rotatablely moving of gear the straight line motion of resonant cavity exocoel 2; Resonant cavity exocoel internal face is shaped as the excessive cuboid of big fillet, and roughness is

, be convenient to cooperate by seal ring resonant cavity inner chamber; Resonant cavity exocoel 2 one end faces are connected with locating guide device 3, are provided with connecting

thread

10,12,13,14 and positioning

pin hole

11,15.

In conjunction with Fig. 3, locating guide device 3 resonant cavity exocoels 2 one end faces are connected, locating guide device 2 inner chambers four internal faces up and down respectively have a cuboid shape guide pad, be respectively 19,25,21,26, the length of guide pad runs through whole locating guide device, locating guide device is provided with connecting

bolt hole

18,22,23,27 and positioning

pin hole

20,28, is used for resonant cavity exocoel 2 and connects and the location; Locating guide device also is provided with displacement transducer attachment hole 24, is used to connect displacement transducer.

In conjunction with Fig. 4, locating guide device resonant cavity exocoel connects end face and is provided with sealing gasket 29, prevents gas leakage in the resonant cavity.

In conjunction with Fig. 3 and Fig. 5, locating guide device 3 mounting types are: locating guide device 3 overlapped flange 31, and guide pad enters the guiding groove of resonant cavity inner chamber 4, by locating stud resonant cavity exocoel 2 one end faces location, connected by bolt resonant cavity exocoel 2.

In conjunction with Fig. 5 and Fig. 6, resonant cavity inner chamber 4 and intake manifold upper end 5 are cast as one, and resonant cavity inner chamber 4 internal faces are the excessive rectangular of big fillet, and inner chamber 4 outer wall front ends have a ring packing ring recess 36, be used to install seal ring, seal ring resonant cavity exocoel 2 internal face fitted seal;

Guiding groove

30,32,35,37 is arranged around resonant cavity inner chamber 4 outer wall, guiding groove length from the resonant cavity intracavity posterior end near but do not pass seal groove, the positioning block of guiding groove and locating guide device 3 cooperates, and is 2 resonant cavity inner chamber 4 relative movement the plaing positioning and guiding effects of resonant cavity exocoel; Intake manifold upper end 5 internal faces are circular arcs of 90 degree, and the internal face radial cross section is measure-alike circle, and there is adpting flange 31 intake manifold upper end 5 and intake manifold lower end 6, and

flange attachment hole

33,34 also has the effect of fixed displacement sensor 7 bases.

In conjunction with Fig. 7, there is rectangular adpting flange 38 intake manifold lower end 6 and intake manifold upper end 5, intake manifold hypomere 6 has four square adpting flanges 39 with the motor connecting end, rectangular adpting flange 38 and foursquare adpting flange 39 are orthogonal, intake manifold hypomere 6 is made up of four single intake manifold, four intake manifold are measure-alike, each intake manifold inner chamber radial cross section by with the circle of 5 joints, intake manifold upper end gradually excessively to the square of motor joint.

In conjunction with Fig. 8, between intake manifold upper end 5 and 6 two adpting flanges in intake manifold lower end sealing gasket 40 is arranged.

In conjunction with Fig. 9, displacement transducer 7 is sliding type displacement transducers, comprise sensor base 41, attaching

nut

42,43 and measuring rod 44, displacement transducer base 41 is fixed on the flange 31 by

attachment hole

33,34 by connecting, and measuring rod 44 is fixed in displacement transducer attachment hole 24 by attaching

nut

42,43.

In conjunction with Figure 10, drive unit 8 comprises stepper motor 45 and actuation gear 46, in order to overcome the frictional force that the 2 internal face relative movement of seal ring resonator exocoel produce, select 86 serial stepper motors for use, the stepper motor output terminal cooperates with gear 46, gear 46 and tooth bar 16 engagements are converted into the straight line motion of tooth bar with rotatablely moving of stepper motor, thereby change the volume of resonant cavity.

In conjunction with Figure 11, measurement and control unit 9 comprises step motor drive control module and displacement transducer signal puocessing module, measurement and control unit 9 also comprises communication module, and communication unit is passed to upper-position unit with the parameter of automatically controlled electrodeless variable resonant intake system system, simultaneously measurement and control unit is passed in the instruction of upper-position unit.

Claims

1. electrodeless variable resonant intake system system, it is characterized in that: comprise the intake manifold, the resonant cavity exocoel, the resonant cavity inner chamber, intake manifold, tooth bar, drive unit, locating guide device and sealing gasket, the intake manifold connects the resonant cavity exocoel of hollow, the resonant cavity inner chamber of hollow partly is sleeved in the resonant cavity exocoel, intake manifold connects the resonant cavity inner chamber, tooth bar is installed on the resonant cavity exocoel, described drive unit comprises motor and actuation gear, motor output end connects actuation gear, and actuation gear connects tooth bar control resonant cavity exocoel resonant cavity inner chamber and does linear relative movement;

The cuboid shape guide pad is set on the described locating guide device, the guiding groove that the ring packing ring recess is set on the resonant cavity inner chamber and cooperates with the cuboid shape guide pad, the relative movement of guiding groove and cuboid shape guide pad engagement limits resonant cavity exocoel resonant cavity inner chamber, sealing gasket is installed in the ring packing ring recess, the outer cavity wall fitted seal of sealing gasket resonant cavity.

2. electrodeless variable resonant intake system according to claim 1 system, it is characterized in that: described intake manifold comprises intake manifold epimere and intake manifold hypomere, intake manifold epimere lower end and intake manifold hypomere upper end are installed the rectangular adpting flange respectively, the intake manifold epimere is connected by the rectangular adpting flange with the intake manifold hypomere, the postive direction adpting flange that links to each other with motor is installed in intake manifold hypomere lower end, intake manifold epimere internal face is the circular arc of 90 degree, the internal face radial cross section is measure-alike circle, intake manifold hypomere inner chamber radial cross section by with intake manifold epimere joint circular excessively to the square of motor joint.

3. electrodeless variable resonant intake system according to claim 1 and 2 system, it is characterized in that: also comprise displacement transducer, described displacement transducer is the sliding type displacement transducer, comprise sensor base, measuring rod, attaching nut, sensor base is fixed on the intake manifold, and measuring rod is fixed on the locating guide device by the attaching nut.

4. electrodeless variable resonant intake system according to claim 1 and 2 system, it is characterized in that: also comprise measurement and control unit, described measurement and control unit comprises motor control module and displacement transducer signal puocessing module, motor control module connects motor and drive motor rotates, the displacement transducer signal puocessing module connects displacement transducer, and the displacement transducer signal puocessing module obtains resonant cavity exocoel, resonant cavity cavity volume by displacement amount.

5. electrodeless variable resonant intake system according to claim 3 system, it is characterized in that: also comprise measurement and control unit, described measurement and control unit comprises motor control module and displacement transducer signal puocessing module, motor control module connects motor and drive motor rotates, the displacement transducer signal puocessing module connects displacement transducer, and the displacement transducer signal puocessing module obtains resonant cavity exocoel, resonant cavity cavity volume by displacement amount.