CN103453167B - Cylinder quantity control valve is entered in a kind of gas engine combustion gas - Google Patents
Cylinder quantity control valve is entered in a kind of gas engine combustion gas Download PDFInfo
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- CN103453167B CN103453167B CN201310390926.1A CN201310390926A CN103453167B CN 103453167 B CN103453167 B CN 103453167B CN 201310390926 A CN201310390926 A CN 201310390926A CN 103453167 B CN103453167 B CN 103453167B
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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 invention discloses gas engine combustion gas and enter cylinder quantity control valve, comprise valve body and be arranged on the valve rod in valve body, be provided with center line in valve body mutually to intersect or vertical air inlet port and to give vent to anger duct, one end of air inlet port is inlet end, it the end face that the other end is arranged on valve body is adjustable side, give vent to anger on valve body wall that duct is positioned near air inlet port adjustable side, the inner port in duct of giving vent to anger is communicated with air inlet port to form and regulates exit orifice; The front end of valve rod is tubular and inserts in air inlet port from the adjustable side of air inlet port, can rotate in air inlet port, and the rearward end of valve rod then extends outside valve body and is connected with load governor; Valve rod front end forms the air chamber be communicated with air inlet port, the peripheral wall of this valve rod air chamber has through hole as adjustment endoporus, regulating endoporus and regulate exit orifice corresponding on the axial position of valve body, regulating endoporus can rotate between adjustment exit orifice from overlapping completely to the inlet changed between staggering completely with regulating gas with valve rod.
Description
Technical field
The present invention relates to air inlet and the fuel supply system of gas engine, specifically refer to that cylinder quantity control valve is entered in a kind of gas engine combustion gas.
Background technique
The work of gas engine relies on electrical system combustion gas and air to be mixed by a certain percentage rear feeding engine cylinder-body combustion and does work to realize.Combustion gas mixes with air generally to be carried out in the upstream of engine intake manifold.
As shown in Figure 1, existing air inlet and gas supply system adopt mixer pre-mixing type usually, be characterized in that combustion gas and air all enter mixing in mixer 14, the mixed gas E of the basicly stable air fuel ratio that is maintained, air intake branch 16 again through engine intake manifold 15 and each cylinder 17 enters each cylinder, the performance of the mixer that motor configures directly affects the performance index of motor, and the advantage of this air inlet and gas supply system is easy reliable, the good stability that keeps air fuel ratio.
But the defect of above-mentioned air inlet and gas supply system is:
(1) can not be applicable to the combustion gas that velocity of combustion is fast, fire extend is large, this is because during engine operation, inflammable mixture abrim in whole suction tude, so large for fire extend, that velocity of combustion the is fast combustion gas containing hydrogen and CO (carbon monoxide converter) gas, tendency and the danger of its tempering are serious, and therefore Security is poor;
(2) can not give full play to the advantage of supercharging type, because be full of inflammable gas in whole suction tude, non pressurized type valve overlap can only be adopted, to avoid inflammable gas when scavenging directly from outlet pipe effusion, the gas engine of therefore supercharging has to adopt unsupercharged valve overlap, causes row's temperature high, strengthening degree is low, the thermal efficiency is low, and gas consumption rate is high, and the output power of motor is very restricted;
Combustion gas enter cylinder before pipeline longer, gas quantity regulate dynamic response poor.
In order to overcome the above defect existing for existing gas engine air inlet and gas supply system, needing to take the mode by cylinder supply combustion gas, combustion gas is mixed with air in cylinder.But, the combustion gas of existing gas engine controls as complete machine fixing quantity, quantity control valve is pipe section flow pattern dish valve, degree of regulation is poor, be suitable only for the gas flow that line size is comparatively large, pressure is extremely low, flow is larger to regulate, can not meet and control by cylinder supply gas quantitative the requirement that flow is less, pressure is higher, degree of regulation is high.And although more existing gas flow control valves can meet by cylinder supply gas quantitative control overflow, but due to must according to the situation automatic control and adjustment gas flow sizes such as each working stage such as starting, speed governing, each cylinder load distribution, parking of the working state of cylinder as motor, therefore make existing gas flow control valve still be difficult to meet the requirement for automatic control and adjustment during above-mentioned engine behavior, therefore existing gas flow control valve cannot directly apply in described gas supply system.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, tempering risk can either be eliminated to improve Security, while can improve again engine output and dynamic response gas engine combustion gas enter cylinder quantity control valve.
Object of the present invention is realized by following technical measures: cylinder quantity control valve is entered in a kind of gas engine combustion gas, it comprises valve body and is arranged on the valve rod in valve body, it is characterized in that: described valve body is microscler blocks, in described valve body, be provided with center line mutually intersect or vertical air inlet port and to give vent to anger duct, one end of described air inlet port is inlet end, for accessing combustion gas, it the end face that the other end is arranged on valve body is adjustable side, to insert described valve rod, described duct of giving vent to anger is positioned on the valve body wall of described air inlet port adjustable side, the inner port in described duct of giving vent to anger is communicated with air inlet port to form and regulates exit orifice, and described in give vent to anger duct external port for being connected with cylinder, the front end of described valve rod is tubular and inserts in air inlet port from the adjustable side of air inlet port, can rotate in air inlet port, and the rearward end of described valve rod then extends outside valve body and is connected with load governor, the tubular structure of described valve rod front end forms the air chamber be communicated with air inlet port, the peripheral wall of this valve rod air chamber has a through hole as adjustment endoporus, described adjustment endoporus is corresponding on the axial position of valve body with adjustment exit orifice, described adjustment endoporus can to change from overlapping completely with the rotation of valve rod with between adjustment exit orifice between staggering completely, to regulate size or the closedown of valve port, reach the object of regulating gas inlet.
When the present invention uses, be mounted on the admission line of each cylinder, eliminate the mixer in cylinder intake pipeline simultaneously, described valve rod by load governor according to gas cylinder working condition transmit control signal control its rotate, making between the adjustment endoporus on valve rod and the adjustment exit orifice on valve body can be overlapping or partly overlap or stagger to be formed the open and close of valve port and the change of size, in order to open and close combustion gas or regulating gas amount.When described holes misplaces completely, valve port is closed; When described holes is completely overlapping, then valve port Throughput is maximum; When regulate between endoporus with adjustment exit orifice misplace completely with overlap completely between transition time, the step-less adjustment of valve port size can be realized, thus the gas supply amount according to the situation of change of the engine operating condition fine each cylinder of control motor in real time can be realized.Meanwhile, owing to adopting after the present invention, change combustion gas and air in prior art and be mixed into outside cylinder and mix in cylinder, therefore, make there is no flammable mixed gas in the air inlet pipeline of cylinder, so the risk of tempering detonation can be effectively eliminated; And then can give full play to the advantage of pressure-increasing machine h type engine h, make engine output be promoted to greatest extent, gas consumption rate is low; Reaching when avoiding tempering, improving engine output, gas quantity regulates the object that dynamic response is good.
As one embodiment of the present invention, blind flange is set up in the adjustable side of described valve body, for supporting the outer end of valve rod, to make its smooth rotation, blind flange has the axis hole for installing valve rod outer end, in the outer end of axis hole, bearing is installed, described valve rod is made up of tubular front end and rearward end, and wherein, rearward end is supporting axle, described supporting axle stretches out through blind flange, and is supported on the bearing in blind flange.
As a modification of the present invention, between the inner end and supporting axle of the axis hole of described blind flange, be provided with sealing configuration.
As optimal way of the present invention, described sealing configuration comprises axle sleeve and seal ring, and described axle sleeve and seal ring are closely sleeved on the supporting axle of described valve rod respectively, and described axle sleeve and seal ring are closely arrangement.
As another embodiment of the invention, the described blind flange part corresponded between the inside and outside end of described axis hole extends the microscler valve seat of formation.
As a modification of the present invention, described gas engine combustion gas is entered cylinder quantity control valve and is also comprised valve handle, and one end of described valve handle is arranged on the external part of supporting axle, the other end as connecting end for connecting the external control bar controlled by load governor.
For optimal way of the present invention, described valve handle is made up of the connecting base of plate shape and microscler handle body, one end of described handle body is fixed on the plate face of described connecting base as fixed end, the other end stretches out as described connecting end, described connecting end is provided with the hole clipping for engaging external control bar, described supporting axle passes the connection part of connecting base and handle body and form through hole on connecting base and handle body, described through hole extends into microscler jaws towards the fixed end of handle body, this microscler jaws forms fracture at the edge of connecting base and handle body, the both sides that described handle body is positioned at microscler jaws are provided with gripping members and clamp microscler jaws to make supporting axle pass through and be fixed on through hole.
The present invention is provided with scale to indicate the rotation angle of valve handle along the plate face circumference of described connecting base.
For the ease of processing and fabricating, as recommendation mode of execution of the present invention, the profile of described valve seat is the large and middle part minor structure in front and rear part, in described front and rear part, correspondence is provided with inner end and the outer end of described axis hole respectively, and in middle part, being provided with the stage casing of described axis hole, the outer margin contour line of the outer margin contour line of described connecting base and the back segment end face of valve seat matches.
The inlet end of air inlet port of the present invention is bending duct, and this bending duct is formed by two sections of hole links, and wherein a sector hole road is the counterbore consistent with air inlet port bearing of trend, another sector hole road to be opened on valve body wall and its external port for accessing combustion gas.
Compared with prior art, the present invention has following significant advantage:
(1) the present invention passes through the adjustment endoporus on control valve rod and regulates the valve port size formed between exit orifice realize step-less adjustment gas quantity and open and close combustion gas, effectively fine can control the gas supply amount of each cylinder of gas engine, and, after utilizing the present invention, realize combustion gas to mix in cylinder with air, therefore, the mixer in existing air inlet pipeline can be cancelled, make to no longer include burning mixture in air inlet pipeline, thus effectively eliminate the risk of tempering detonation, substantially increase the Security of gas engine.
(2) due to the application of the present invention in the air inlet and gas supply system of gas engine, can give full play to the advantage of supercharging type, utilize supercharging type valve overlap, engine output is promoted to greatest extent.
(3) utilize the present invention to realize combustion gas to enter in cylinder and mix with air, and can step-less adjustment air inflow, therefore, gas quantity regulates dynamic response well, and soon, gas consumption rate is low, can ensure engine health, reliably, normally run for speed of ignition.
(4) structure of the present invention is simple, good manufacturability, is arranged on the gas inlet pipeline of each cylinder, can according to the working state control gas flow size of cylinder, realize the starting of motor, speed governing, each cylinder load distribution, parking function, gas engine gas supply amount can be controlled by cylinder.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the schematic diagram of existing air inlet and gas supply system;
Fig. 2 be adopt of the present invention time air inlet and gas supply system schematic diagram;
Fig. 3 is that the master of the embodiment of the present invention 1 cuts open figure depending on office;
Fig. 4 is the outline drawing that control valve shown in Fig. 3 rotates clockwise 90 degree;
Fig. 5 is the plan view of valve body part;
Fig. 6 is the sectional view (removing valve seat) of valve body piece;
Fig. 7 is A-A sectional view in Fig. 6;
Fig. 8 is the plan view of valve rod part;
Fig. 9 is the main pseudosection of blind flange;
Figure 10 is the front view of valve handle;
Figure 11 is the B direction view of Figure 10;
Figure 12 is the H-H sectional view of Fig. 3;
Figure 13 is that the master of the embodiment of the present invention 2 cuts open figure depending on office.
Embodiment
Embodiment 1
As shown in Fig. 3 ~ 12, that cylinder quantity control valve 18 is entered in a kind of gas engine combustion gas of the present invention, it comprises valve body 1, be arranged on the valve rod 2 in valve body 1 and valve handle 6, valve body 1 is microscler blocks, the orthogonal air inlet port of center line is provided with and duct of giving vent to anger in valve body 1, in the present embodiment, valve body 1 namely axially arranges air inlet port along body length direction, duct 11 of giving vent to anger is provided with along valve body width direction and radial direction, one end of air inlet port 11 is inlet end, for accessing combustion gas, it the end face that the other end is arranged on valve body 1 is adjustable side, to insert valve rod 2, give vent to anger on valve body wall that duct 11 is positioned near air inlet port adjustable side, the inner port in duct 11 of giving vent to anger is communicated with air inlet port to form and regulates exit orifice 3, and duct 11 external port of giving vent to anger is for being connected with cylinder, the front end 23 of valve rod 2 is tubular and inserts in air inlet port from the adjustable side of air inlet port, can rotate in air inlet port, and the rearward end of valve rod 2 then extends outside valve body 1 and is connected with load governor, the tubular structure of valve rod 2 front end 23 forms the air chamber 21 be communicated with air inlet port, the peripheral wall of this valve rod 2 air chamber 21 has a through hole as adjustment endoporus 4, regulate endoporus 4 corresponding on the axial position of valve body 1 with adjustment exit orifice 3, regulate endoporus 4 can to change between staggering completely from overlapping completely with the rotation of valve rod 2 with between adjustment exit orifice 3, to regulate size or the closedown of valve port, realize the adjustment of combustion gas inlet.
In the present embodiment, air inlet port is made up of two sections of concentric reducing bores, and these two sections of concentric reducing bores are all offered along the central axial direction of valve body, is duct, small aperture 12 and duct, large aperture 13.The inlet end of air inlet port is bending duct, this bending duct is formed by two sections of hole links, wherein a sector hole road is the counterbore consistent with air inlet port bearing of trend, namely this counterbore is duct, small aperture 12, on the hole wall that another sector hole road is opened in duct, small aperture 12 and its external port for accessing combustion gas, specifically inipple 70 is installed in external port, enters machine house steward by immunity pipe fitting and combustion gas and be connected; Regulate exit orifice 3 to be positioned on the hole wall in duct, large aperture 13 of air inlet port, air chamber 21 adaptation of supporting axle 22 is arranged in duct, large aperture 13, and and has running clearance between the hole wall in duct, large aperture 13.
Blind flange 5 is set up in the adjustable side of valve body 1, for supporting the outer end of valve rod 2, to make its smooth rotation, blind flange 5 has the axis hole for installing valve rod 2 outer end, and be provided with bearing in the outer end 53 of axis hole, valve rod 2 is made up of tubular front end 23 and rearward end, wherein, rearward end is supporting axle 22, and supporting axle 22 stretches out through blind flange 5, and is supported on the bearing 50 in blind flange 5.Supporting axle 22 is two concentric cylinders with the joint of the tubular front end 23 of valve rod 2, the side of these two concentric cylinders is respectively First terrace 24 and second step face 25, the sedimentation successively from front to back of First terrace 24 and second step face 25, between First terrace 24 and second step face 25, be also provided with transitional surface 26, First terrace 24 is positioned at duct, large aperture 13 and there is space 27 therebetween.Blind flange 5 is for being the axis hole of blind flange 5 through the duct of supporting axle 22, axis hole by front end 51, rearward end 53 is large and stage casing 52 is little concentric different diameter hole forms, second step face 25 is arranged in the front end 51 of blind flange 5 and is provided with two axle sleeves 41 and two seal rings 40 between, gas leakage is prevented as sealing configuration, axle sleeve 41 and seal ring 40 are closely sleeved on the First terrace 25 of valve rod respectively, and axle sleeve 41 and seal ring 40 are closely arrangement.Supporting axle 22 passes the stage casing 52 of axis hole and is arranged on the rotatable installation realizing valve rod 2 in the bearing 50 in rearward end 53.
One end of valve handle 6 is arranged on the external part of supporting axle 22, the other end as connecting end for connecting the external control bar controlled by load governor.In the present embodiment, valve handle 6 is made up of with microscler handle body 62 connecting base 61 of circular plate type, one end of handle body 62 is welded on the plate face of connecting base 61 as fixed end, the other end stretches out and is connecting end, connecting end is provided with the hole clipping 63 for engaging external control bar, supporting axle 22 passes the connection part of connecting base 61 and handle body 62 and form through hole 64 on connecting base 61 with handle body 62, through hole 64 extends into microscler jaws 65 towards the fixed end of handle body 62, this microscler jaws 65 forms fracture at connecting base 61 and the edge of handle body 62, the both sides that handle body 62 is positioned at microscler jaws 65 are provided with gripping members and are fixed on through hole 64 to make supporting axle 22 by the microscler jaws 65 of clamping, gripping members adopts clamping bolt 20, clamping supporting axle 22 is realized through tapped hole 66.
The profile of blind flange 5 is the large and middle part minor structure in front and rear part, in front and rear part, correspondence is provided with inner end 51 and the outer end 52 of axis hole respectively, and in middle part, being provided with the stage casing 52 of axis hole, the outer margin contour line of the outer margin contour line of connecting base 61 and the back segment end face of blind flange matches.The hole wall in the duct, large aperture 13 of valve body 1 is cylndrical surface, exit orifice 3 is regulated to be slotted eye, this adjustment exit orifice 3 is offered along the circumferencial direction in duct, large aperture 13, it is oval duct that the inner aperture regulating exit orifice 3 to extend to duct 11 of giving vent to anger forms cross section, the side of valve rod 2 front end 23 is cylndrical surface, regulate the elongated hole that endoporus 4 increases gradually for aperture, see Fig. 8, this elongated hole is offered along the circumferencial direction of valve rod 2 front end 23, in the present embodiment, the aperture regulating endoporus 4 comparatively small end towards clockwise direction (D shown in Fig. 4 to), along with valve rod clockwise direction rotates, regulate endoporus 4 that valve port between exit orifice 3 with the rotation of valve rod 2 and can be regulated to increase to regulate increase gas quantity gradually, oppositely counterclockwise (C shown in Fig. 4 to) rotates then to regulate and reduces gas quantity, the adjustment exit orifice of the present embodiment can be worked in coordination with adjustment endoporus and be realized evenly increasing the object of gas quantity so that the ratio of precise hard_drawn tuhes gas quantity and air, thus make motor complete the function in different operating stage.
The leading portion end face of blind flange 5 is connected with the peripheral end face of the peritreme in duct, large aperture 13, the leading portion end face of blind flange 5 is provided with the first mounting groove 60, first mounting groove 60 is positioned at the periphery of the axis hole front end peritreme of blind flange, is provided with the first seal ring 7 in the first mounting groove 60.Duct 11 of giving vent to anger extends upward to body, the outer wall in duct 11 of giving vent to anger is provided with the second mounting groove 80, be provided with in the second mounting groove 80 between through hole that second seal ring 8, second seal ring 8 is in the outer wall in duct of giving vent to anger and the cover cap of engine cylinder head top movements mechanism for the lubricant oil in closing cap; The upper end end face in duct 11 of giving vent to anger is provided with the 3rd mounting groove 90, and in the 3rd mounting groove, 90 are provided with the 3rd seal ring the 9, three seal ring and are between the outer wall in duct of giving vent to anger and the blast tube outer wall of engine cylinder head for sealing combustion gas.For the ease of coordinating regulating gas amount, the plate face circumference along connecting base 61 is provided with scale 10 to indicate the rotation angle of valve handle, can set gas quantity according to rotation angle.
As shown in Figure 2, gas engine combustion gas of the present invention enters on the air intake branch 16 of cylinder quantity control valve 18 before each cylinder 17 of gas engine to be all provided with one, its working procedure is as follows: during gas engine work, combustion gas F enters from intake manifold 15 and is provided with gas engine combustion gas and enters each air intake branch 16 of cylinder quantity control valve, combustion gas F enters from the air inlet port of valve body, and enter in the air chamber of valve rod, external control bar is under the effect of load governor, rotate valve handle, valve rod is rotated, the adjustment endoporus of valve rod is communicated with the adjustment exit orifice of valve body opens combustion gas, and by regulating exit orifice and regulating the valve port size between endoporus to make circulation area change, thus change the gas quantity entering cylinder, according to the starting of motor, speed governing, each cylinder load distribution, the heat load required for each stage such as parking carrys out regulating gas amount, realize controlling gas supply amount by cylinder, namely the gas quantity of each cylinder can be allocated according to actual required function, combustion gas enters in cylinder and mixes with air G phase, therefore burning mixture is not had in air inlet pipeline, there is not the risk of tempering detonation, engine output is promoted to greatest extent, dynamic response is good, gas consumption rate is low, ensure that engine health, reliably, normal operation.
Embodiment 2
As shown in figure 13, the difference of the present embodiment and embodiment 1 is: set up valve seat 45 in the adjustable side of valve body 1, and it is that the part corresponded between the inside and outside end of axis hole by the blind flange of embodiment 1 extends the microscler valve seat 45 formed.
In other embodiments, the center line that in valve body, air inlet port and duct of giving vent to anger can be the two intersects mutually.
Embodiments of the present invention are not limited thereto, according to foregoing of the present invention, according to ordinary technical knowledge and the customary means of related domain, do not departing under the present invention's above-mentioned basic fundamental thought prerequisite, the rotatable installation of valve rod of the present invention also has other mode of execution, and the valve body installing valve rod also has various structures, regulate exit orifice and the embodiment regulating the shape of endoporus also to have other, such as circular hole, square opening etc., the hole shape of the even increase and minimizing that can realize gas quantity is preferred hole shape.Therefore the present invention can also make the amendment of other various ways, replacement or change, all drops within rights protection scope of the present invention.
Claims (10)
1. cylinder quantity control valve is entered in a gas engine combustion gas, it comprises valve body and is arranged on the valve rod in valve body, it is characterized in that: described valve body is microscler blocks, the cross one another air inlet port of center line is provided with and duct of giving vent to anger in described valve body, one end of described air inlet port is inlet end, for accessing combustion gas, it the end face that the other end is arranged on valve body is adjustable side, to insert described valve rod, described duct of giving vent to anger is positioned on the valve body wall of described air inlet port adjustable side, the inner port in described duct of giving vent to anger is communicated with air inlet port to form and regulates exit orifice, and described in give vent to anger duct external port for being connected with cylinder, the front end of described valve rod is tubular and inserts in air inlet port from the adjustable side of air inlet port, can rotate in air inlet port, and the rearward end of described valve rod then extends outside valve body and is connected with load governor, the tubular structure of described valve rod front end forms the air chamber be communicated with air inlet port, the peripheral wall of this valve rod air chamber has a through hole as adjustment endoporus, described adjustment endoporus is corresponding on the axial position of valve body with adjustment exit orifice, described adjustment endoporus can to change from overlapping completely with the rotation of valve rod with between adjustment exit orifice between staggering completely, to regulate size or the closedown of valve port, realize the adjustment of combustion gas inlet.
2. cylinder quantity control valve is entered in gas engine combustion gas according to claim 1, it is characterized in that: set up blind flange in the adjustable side of described valve body, for supporting the outer end of valve rod, to make its smooth rotation, blind flange has the axis hole for installing valve rod outer end, in the outer end of axis hole, bearing is installed, described valve rod is made up of tubular front end and rearward end, and wherein, rearward end is supporting axle, described supporting axle stretches out through blind flange, and is supported on the bearing in blind flange.
3. cylinder quantity control valve is entered in gas engine combustion gas according to claim 2, it is characterized in that: between the inner end and supporting axle of the axis hole of described blind flange, be provided with sealing configuration.
4. cylinder quantity control valve is entered in gas engine combustion gas according to claim 3, it is characterized in that: described sealing configuration comprises axle sleeve and seal ring, described axle sleeve and seal ring are closely sleeved on the supporting axle of described valve rod respectively, and described axle sleeve and seal ring are closely arrangement.
5. cylinder quantity control valve is entered in gas engine combustion gas according to claim 4, it is characterized in that: the described blind flange part corresponded between the inside and outside end of described axis hole extends the microscler valve seat of formation.
6. cylinder quantity control valve is entered in gas engine combustion gas according to claim 5, it is characterized in that: described gas engine combustion gas is entered cylinder quantity control valve and also comprised valve handle, one end of described valve handle is arranged on the external part of supporting axle, the other end as connecting end for connecting the external control bar controlled by load governor.
7. cylinder quantity control valve is entered in gas engine combustion gas according to claim 6, it is characterized in that: described valve handle is made up of the connecting base of plate shape and microscler handle body, one end of described handle body is fixed on the plate face of described connecting base as fixed end, the other end stretches out as described connecting end, described connecting end is provided with the hole clipping for engaging external control bar, described supporting axle passes the connection part of connecting base and handle body and form through hole on connecting base and handle body, described through hole extends into microscler jaws towards the fixed end of handle body, this microscler jaws forms fracture at the edge of connecting base and handle body, the both sides that described handle body is positioned at microscler jaws are provided with gripping members and clamp microscler jaws to make supporting axle pass through and be fixed on through hole.
8. cylinder quantity control valve is entered in gas engine combustion gas according to claim 7, it is characterized in that: the plate face circumference along described connecting base is provided with scale to indicate the rotation angle of valve handle.
9. cylinder quantity control valve is entered in gas engine combustion gas according to claim 8, it is characterized in that: the profile of described valve seat is the large and middle part minor structure in front and rear part, in described front and rear part, correspondence is provided with inner end and the outer end of described axis hole respectively, and in middle part, being provided with the stage casing of described axis hole, the outer margin contour line of the outer margin contour line of described connecting base and the back segment end face of valve seat matches.
10. cylinder quantity control valve is entered in the gas engine combustion gas according to any one of claim 1 ~ 9, it is characterized in that: the inlet end of described air inlet port is bending duct, this bending duct is formed by two sections of hole links, wherein a sector hole road is the counterbore consistent with air inlet port bearing of trend, another sector hole road to be opened on valve body wall and its external port for accessing combustion gas.
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| CN108969811A (en) * | 2018-06-25 | 2018-12-11 | 苏州市百世康医疗器械有限公司 | A kind of vapour-pressure type drainage controller |
| CN108969810A (en) * | 2018-06-25 | 2018-12-11 | 苏州市百世康医疗器械有限公司 | A kind of automatic jet control device |
| CN110748440A (en) * | 2018-07-23 | 2020-02-04 | 重庆科克发动机技术有限公司 | Mixer with adjustable air-fuel ratio |
| CN110953361B (en) * | 2019-12-27 | 2022-07-22 | 一汽解放汽车有限公司 | Rotary flow control valve |
| CN114810422B (en) * | 2022-04-11 | 2024-06-14 | 湖北航天技术研究院总体设计所 | Flow adjusting mechanism, self-adaptive adjusting device and adjusting method of attitude control system |
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| CN103453167A (en) | 2013-12-18 |
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