CN107060993A - A kind of turbocharger deflation valve of adaptive height above sea level - Google Patents

A kind of turbocharger deflation valve of adaptive height above sea level Download PDF

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Publication number
CN107060993A
CN107060993A CN201710184485.8A CN201710184485A CN107060993A CN 107060993 A CN107060993 A CN 107060993A CN 201710184485 A CN201710184485 A CN 201710184485A CN 107060993 A CN107060993 A CN 107060993A
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CN
China
Prior art keywords
valve
turbocharger
rod
throttling arrangement
bit triplet
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Granted
Application number
CN201710184485.8A
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Chinese (zh)
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CN107060993B (en
Inventor
张翔宇
李研芳
王晓滕
杨震寰
黄树和
刘胜
丁振峰
梁红波
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China North Engine Research Institute Tianjin
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China North Engine Research Institute Tianjin
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Priority to CN201710184485.8A priority Critical patent/CN107060993B/en
Publication of CN107060993A publication Critical patent/CN107060993A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12Control of the pumps
    • F02B37/18Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183Arrangements of bypass valves or actuators therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12Control of the pumps
    • F02B37/18Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183Arrangements of bypass valves or actuators therefor
    • F02B37/186Arrangements of actuators or linkage for bypass valves
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Safety Valves (AREA)

Abstract

The invention provides a kind of turbocharger deflation valve of adaptive height above sea level, the gas pressure regulation of plenum runner is coordinated to flow to the exhaust airstream of turbocharger, including housing;Some demarcation strips are provided with housing, enclosure interior space is divided into two-bit triplet pneumatic operated valve, actuator, four subdivisions of adjustable throttling arrangement and gasbag-type pressure compensator;Two-bit triplet pneumatic operated valve and actuator are connected with plenum runner;The air motion direction of the actuated device of two-bit triplet pneumatic operated valve controlling stream;Adjustable throttling arrangement changes the gas pressure size for flowing through actuator;Gasbag-type pressure compensator controls the aperture of adjustable throttling arrangement.The turbocharger deflation valve of the adaptive height above sea level of the present invention, simple in construction, without extra power, the real-time change of admission pressure is small to the accurate control influence of turbocharger deflation valve Opening pressure.

Description

A kind of turbocharger deflation valve of adaptive height above sea level
Technical field
The invention belongs to turbocharger of motor technical field, more particularly, to a kind of turbine of adaptive height above sea level Booster vent valve, the exhaust airstream of turbocharger is flowed to for control.
Background technology
The factor that engine performance is restricted is, into unsaturated vapor, to be increased on internal combustion engine using turbocharger Air inflow improvement engine performance, which has been obtained, widely to be studied and is successfully applied to engineering, but under certain conditions, whirlpool Take turns booster plenum ability too high, cause outburst hypertonia in cylinder, engine reliability declines, in addition, turbine The overspeed operation of booster also results in the damage of turbocharger.It is has been common that flowing to the exhaust of turbocharger In air-flow use vent valve, the exhaust airstream for flowing to turbocharger can be adjusted, thus control the rotating speed of turbine wheel with And the maximum outbreak pressure in cylinder.
Compared to naturally aspirated engine, the turbocharged engine with vent valve when High aititude works advantageously. But an insoluble problem is, as height above sea level is raised, the atmospheric environmental pressure of reduction can cause vent valve to be opened in advance, So as to be difficult to take into account high low altitude area operating mode.For example, as height above sea level is raised, atmospheric pressure is reduced, under conditions of same admission pressure, High aititude charge flow rate declines, and equally exists into unsaturated vapor, degradation problem, therefore High aititude needs higher admission pressure To keep dynamic property, but because High aititude atmospheric pressure is relatively low, vent valve resistance is overcome also to reduce, deflation valve opening pressure is on the contrary Reduce, cause engine to be difficult to play the due huge advantage of turbocharging in high altitude localities.
It is has been common that by using having electronic or the booster of hydraulic control deflation valve, can be according to different seas Pull out operating mode regulation in real time and flow to the exhaust airstream of turbocharger, however above-mentioned control system exist difficult arrangement, cost it is high, can By property it is relatively low the problems such as.By using the vent valve with gasbag-type air pressure self-compensating function, such as denomination of invention " arrange by turbocharger The Chinese patent ZL2006101263921 of the height above sea level compensation of valve ", can have the advantages that simple in construction and expense is low, But control deflation valve opening pressure, one because the invention directly changes the installation spring principle of spring using air bag by lever Aspect causes air bag to overcome higher reaction force, increases the volume of air bag to improve necessary actuating power, on the other hand Spring generates certain interference to air bag in motion, and this causes the accurate control to vent valve to become difficult.
The content of the invention
In view of this, the present invention is directed to propose a kind of turbocharger deflation valve of adaptive height above sea level, to realize root The adaptability of turbocharger deflation valve air-flow is adjusted according to the different atmospheric pressure of different altitude height.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:
A kind of turbocharger deflation valve of adaptive height above sea level, coordinates the gas pressure regulation stream of plenum runner To the exhaust airstream of turbocharger, including housing;
Some demarcation strips are provided with housing, enclosure interior space is divided into two-bit triplet pneumatic operated valve, actuator, adjustable throttling Four subdivisions of device and gasbag-type pressure compensator;
Two-bit triplet pneumatic operated valve and actuator are connected with plenum runner;
The air motion direction of the actuated device of two-bit triplet pneumatic operated valve controlling stream;
Adjustable throttling arrangement changes the gas pressure size for flowing through actuator;
Gasbag-type pressure compensator controls the aperture of adjustable throttling arrangement.
Further, actuator includes single-rod piston, the second preloading spring and deflation valve;
The inwall of the piston of single-rod piston and demarcation strip and housing is slidingly sealed cooperation, and piston rod is located at the lower end of piston, And the lower end of piston rod is through housing and extends the external world;
Deflation valve is fixed on the lower end of piston rod, controls to adjust the exhaust airstream for flowing to turbocharger;
The rear end side of single-rod piston is connected by first passage with plenum runner, and opposite side passes through the 3rd opening Connected with adjustable throttling arrangement;
The piston of single-rod piston is connected with the second preloading spring.
Further, two-bit triplet pneumatic operated valve includes valve element and the first preloading spring;
Valve element upper surface is connected with plenum runner, and valve element lower surface is connected by the second opening and ambient atmosphere environment Logical, the demarcation strip between two-bit triplet pneumatic operated valve and adjustable throttling arrangement is provided with third channel;
The inwall of valve element and demarcation strip and housing is slidingly sealed cooperation, and the lower end of the valve element is connected with the first preloading spring;
Fourth lane and Five-channel are provided with valve element, is respectively equipped with around the outer revolution side surface of valve element first annular recessed Groove and the second annular groove, the two ends of fourth lane are connected with plenum runner and the second annular groove respectively, Five-channel Two ends respectively with second opening and first annular groove connect;
When the second annular groove is communicated with third channel, two-bit triplet pneumatic operated valve is in A states, when first annular recessed When groove is communicated with third channel, two-bit triplet pneumatic operated valve is in B states;
And first preloading spring spring force be less than the second preloading spring spring force.
Further, adjustable throttling arrangement includes fixing bolt and Hooded nut;
One end of fixing bolt is fixed on the inwall of housing, and the other end coordinates with Hooded nut screw thread;
The top of Hooded nut is tapered, and forms taper throttling passage with the 3rd opening relative engagement;
The middle part of Hooded nut is provided with gear-like structure around the rotation lateral surface of the Hooded nut.
Further, the non-cap end of Hooded nut is sawtooth thread, and is mutually rotatable cooperation and self-locking with fixing bolt, It is internally formed offered on nut confined space, the side wall of nut confined space one connected with Hooded nut outer surface second Passage.
Further, gasbag-type pressure compensation control device includes air bag and control-rod;
Inside air bag is fixed on housing filled with gas, the upper end of the air bag, and lower end is fixedly connected with the upper end of control-rod;
Gasbag outer surface is identical with ambient atmosphere environment by the 4th opening;
The lower end of control-rod is through dividing plate and extends adjustable throttling arrangement, and the control-rod is provided with along control-rod central axis The rack structure in direction, rack structure is engaged with gear-like structure.
Further, two-bit triplet pneumatic operated valve also includes a back-up ring, and back-up ring is fixed on the lower section of valve element and third channel.
Further, housing is stretched out in the lower end of control-rod, and is slidingly sealed cooperation with housing.
Relative to prior art, the turbocharger deflation valve of adaptive height above sea level of the invention has the advantage that:
(1) turbocharger deflation valve of adaptive height above sea level of the invention, simple in construction, without extra power, enters The real-time change of atmospheric pressure is small to the accurate control influence of turbocharger deflation valve Opening pressure.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the two-bit triplet pneumatic operated valve in the turbocharger deflation valve of the adaptive height above sea level of the embodiment of the present invention Installation diagram under A median function states;
Fig. 2 is the two-bit triplet pneumatic operated valve in the turbocharger deflation valve of the adaptive height above sea level of the embodiment of the present invention Installation diagram under B median function states;
Fig. 3 is the two-bit triplet pneumatic operated valve in the turbocharger deflation valve of the adaptive height above sea level of the embodiment of the present invention Valve element enlarged diagram.
Description of reference numerals:
1- housings;2- plenum runners;3- two-bit triplet pneumatic operated valves;4- valve elements;5- first passages;6- the first pretension bullets Spring;7- back-up rings;8- actuators;9- single-rod pistons;The preloading springs of 10- second;11- deflation valves;12- the 3rd is open;13- second Passage;14- is adjustable throttling arrangement;15- fixing bolts;16- Hooded nuts;17 control-rods;18- air bags;19- gasbag-types pressure is mended Repay control device;20- third channels;21- second is open;22- demarcation strips;25- the 4th is open;42- fourth lanes;43- the 5th Passage;The first annular grooves of 44-;The annular grooves of 45- second.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figures 1 to 3, the present invention coordinates the gas pressure regulation of plenum runner to flow to the exhaust of turbocharger Air-flow, including housing 1;
Some demarcation strips 22 are provided with housing 1, by the inner space of housing 1 be divided into two-bit triplet pneumatic operated valve 3, actuator 8, can Adjust 19 4 subdivisions of throttling arrangement 14 and gasbag-type pressure compensator;
Two-bit triplet pneumatic operated valve 3 and actuator 8 are connected with plenum runner 2;
The air motion direction of the actuated device 8 of the controlling stream of two-bit triplet pneumatic operated valve 3;
Adjustable throttling arrangement 14 changes the gas pressure size for flowing through actuator 8;
Gasbag-type pressure compensator 19 controls the aperture of adjustable throttling arrangement 14.
Actuator 8 includes single-rod piston 9, the second preloading spring 10 and deflation valve 11;
The inwall of the piston of single-rod piston 9 and demarcation strip 22 and housing 1 is slidingly sealed cooperation, and piston rod is located under piston Hold, and the lower end of piston rod passes through housing 1 and extends the external world;
Deflation valve 11 is fixed on the lower end of piston rod, controls to adjust the exhaust airstream for flowing to turbocharger;
The rear end side of single-rod piston 9 is connected by first passage 5 with plenum runner 2, and opposite side passes through the 3rd Opening 12 is connected with adjustable throttling arrangement 14;
The piston of single-rod piston 9 is connected with the second preloading spring 10.
Two-bit triplet pneumatic operated valve 3 includes the preloading spring 6 of valve element 4 and first;
The upper surface of valve element 4 is connected with plenum runner, and the lower surface of valve element 4 passes through the second opening 21 and ambient atmosphere environment Connection, the demarcation strip 22 between two-bit triplet pneumatic operated valve 3 and adjustable throttling arrangement 14 is provided with third channel 20;
The inwall of valve element 4 and demarcation strip 22 and housing 1 is slidingly sealed cooperation, and the lower end of the valve element 4 is connected with the first pretension Spring 6;
Fourth lane 42 and Five-channel 43 are provided with valve element 4, the outer revolution side surface around valve element 4 is respectively equipped with first The annular groove 45 of annular groove 44 and second, the two ends of fourth lane 42 respectively with the annular groove of plenum runner 2 and second 45 connections, the two ends of Five-channel 43 are connected with the second opening 21 and first annular groove 44 respectively;
When the second annular groove 45 is communicated with third channel 20, two-bit triplet pneumatic operated valve 3 is in A states, when first When annular groove 44 is communicated with third channel 20, two-bit triplet pneumatic operated valve 3 is in B states;
And first preloading spring 6 spring force be less than the second preloading spring 10 spring force.
Adjustable throttling arrangement 14 includes fixing bolt 15 and Hooded nut 16;
One end of fixing bolt 15 is fixed on the inwall of housing 1, and the other end coordinates with the screw thread of Hooded nut 16;
The top of Hooded nut 16 is tapered, and forms taper throttling passage with the 3rd 12 relative engagements of opening;
The middle part of Hooded nut 16 is provided with gear-like structure around the rotation lateral surface of the Hooded nut 16.
The non-cap end of Hooded nut 16 is sawtooth thread, and is mutually rotatable cooperation and self-locking with fixing bolt 15, in it Portion forms nut confined space, offer on the side wall of nut confined space one connected with the outer surface of Hooded nut 16 it is second logical Road 13
Gasbag-type pressure compensation control device 19 includes air bag 18 and control-rod 17;
Filled with gas inside air bag 18, the upper end of the air bag 18 is fixed on housing, and lower end and the upper end of control-rod 17 are consolidated Fixed connection;
Gasbag outer surface is identical with ambient atmosphere environment by the 4th opening 25;
The lower end of control-rod 17 is through dividing plate and extends adjustable throttling arrangement 14, and the control-rod 17 is provided with along along control-rod The rack structure of heart axis direction, rack structure is engaged with gear-like structure.
Two-bit triplet pneumatic operated valve 3 also includes a back-up ring 7, and back-up ring 7 is fixed on the lower section of valve element 4 and third channel 20.
Housing 1 is stretched out in the lower end of control-rod 17, and is slidingly sealed cooperation with housing 1.
4th opening 25 is communicated with ambient atmosphere environment, therefore the outer surface of air bag 18 is communicated with ambient atmosphere environment, works as height above sea level When height and atmospheric pressure change, the size of air bag 18 changes therewith, so as to drive control-rod 17 to elongate or shorten, and then passes through control Rack structure on bar 17 processed drives the gear-like structure in Hooded nut 16 to rotate, and realizes the tapered tip phase of Hooded nut 16 For the 3rd opening 12 close and far from;
When height above sea level increase is atmospheric pressure reduction, control-rod 17 is extended, and Hooded nut 16 is revolved around fixing bolt 15 Turn and away from the 3rd opening 12, the taper throttling passage aperture that adjustable throttling arrangement 14 coordinates the 3rd opening 12 to be formed tends to increase Greatly;
When height above sea level reduction is atmospheric pressure rise, control-rod 17 shortens, and Hooded nut 16 is revolved around fixing bolt 15 Turn and close to the 3rd opening 12, the taper throttling passage aperture that adjustable throttling arrangement 14 coordinates the 3rd opening 12 to be formed tends to subtract It is small.
It is that plenum is led to when the relative pressure in plenum runner is less than or equal to the pretightning force of the first preloading spring 6 Absolute pressure in road is less than or equal to the pretightning force sum of external atmospheric pressure and the first preloading spring 6), two-bit triplet pneumatic operated valve 3 are in A median functions, and now plenum runner is on the one hand respectively through second channel 42, the second annular groove 45, third channel 20 and the one end of adjustable throttling arrangement 14 communicate, on the other hand respectively through first passage 5, the rear end of single-rod piston 9, taper throttle Passage 12 and the other end of adjustable throttling arrangement 14 are communicated;
It is in plenum runner when the relative pressure in plenum runner is more than the pretightning force of the first preloading spring 6 Absolute pressure be more than the pretightning force sum of external atmospheric pressure and the first preloading spring 6), valve element 4 is moved down, and two-bit triplet is pneumatic Valve 3 is gradually switched to B median functions by A median functions, now plenum runner respectively through first passage 5, single-rod piston 9 without bar End, adjustable throttling arrangement 14, third channel 20, first annular groove 44, Five-channel 43 and atmospheric environment are communicated.Wherein, exist In the moving process of valve element 4, two-bit triplet pneumatic operated valve 3 can only realize A median functions or B median functions, i.e. A median functions and B median functions Do not intersect.
The course of work of the present invention is as follows:
When height above sea level increase be atmospheric pressure reduction when, control-rod 17 extends, control-rod 17 drive Hooded nut 16 around The rotation of fixing bolt 15 and remote taper throttling passage 12, the adjustable aperture of throttling arrangement 14 tends to increase;
When height above sea level reduction is atmospheric pressure rise, control-rod 17 shortens, and Hooded nut 16 is revolved around fixing bolt 15 Turn and close to taper throttling passage 12, the adjustable aperture of throttling arrangement 14 tends to reduce.
When the relative pressure in plenum runner is less than or equal to the pretightning force of the first preloading spring 6, as shown in figure 1, Two-bit triplet pneumatic operated valve 3 is in A median function states, and adjustable one end of throttling arrangement 14 is respectively through the annular of third channel 20, second Groove 45, second channel 42 and plenum runner 2 are communicated, and the adjustable other end of throttling arrangement 14 is respectively through the nothing of single-rod piston 9 Rod end, third channel 5 and plenum runner 2 are communicated, and the adjustable pressure at two ends of throttling arrangement 14 difference is smaller, is approximately zero, and by It is less than the spring force of the second preloading spring 10, and the relative pressure in plenum runner in the spring force of the first preloading spring 6 Less than or equal to the pretightning force of the first preloading spring 6, therefore single-rod piston will not decline, and deflation valve does not have aperture, the i.e. present invention The turbocharger deflation valve of adaptive height above sea level will not reduce the exhaust airstream for flowing to turbocharger.
In the process, because the internal closed space that Hooded nut 16 and fixing bolt 15 are cooperatively formed leads to by second Road 13 is communicated to the outer surface of Hooded nut 16, ultimately results in the external and internal pressure of Hooded nut 16 and is more or less the same, adjustable throttling arrangement 14 Interior air pressure change is to the influence very little of Hooded nut 16, therefore Hooded nut 16 can be under the drive of control-rod 17 freely Rotation.
In addition, because the two ends of control-rod 17 are not in the inner space of adjustable throttling arrangement 14, therefore adjustable throttling Air pressure change in device 14 cancels each other to the influence of the outer surface of control-rod 17, so that it is relative to effectively reduce air inlet Interference of the change of pressure to pressure compensation control device.
When the relative pressure in plenum runner is more than the pretightning force of the first preloading spring 6, valve element 4 is moved down, two Threeway pneumatic operated valve 3 is gradually switched to B median functions by A median functions, as shown in Fig. 2 now plenum runner 2 is respectively through first Passage 5, the rear end of single-rod piston 9, adjustable throttling arrangement 14, third channel 20, first annular groove 44, Five-channel 43 and big Compression ring border is communicated, and obvious pressure differential occur in the adjustable two ends of throttling arrangement 14,
Hooded nut 16 is compressed by stream pressure to fixing bolt 15, because Hooded nut 16 is buttless thread, With preferable auto-lock function, therefore Hooded nut 16 can't be relatively fixed bolt 15 under the change of pressure differential and be rotated Slide, this effectively increases control accuracy of the gasbag-type pressure compensation control device 19 to adjustable throttling arrangement 14.
At the same time, because there is larger pressure differential and adjustable throttling arrangement 14 to have at the adjustable two ends of throttling arrangement 14 Relative pressure in auto-lock function, the now holding of gasbag-type pressure compensation control device 19 plenum runner is more than the first pretension To the regulating effect of adjustable throttling arrangement 14 before the pretightning force of spring 6, gasbag-type pressure compensation control device 19 is to adjustable throttling The regulation of device 14 is no longer worked.
In high altitude localities, because the adjustable aperture of throttling arrangement 14 is relatively large, cause the rear end air-flow of single-rod piston 9 Relative pressure declines very fast, it is difficult to overcome the pretightning force of the second preloading spring 10 to promote deflation valve 11, so as to effectively increase The Opening pressure of turbocharger deflation valve, reduces the convection current of deflation valve and is imitated to the reduction of the exhaust airstream of turbocharger Really, in the case where atmospheric pressure is relatively low, it is ensured that the rotating speed of turbine, that is, the abundant supercharging of turbocharger is ensure that, is entered And ensure that air input of engine by air;
In low altitude area, because the adjustable aperture of throttling arrangement 14 is relatively small, cause the rear end air-flow of single-rod piston 9 Relative pressure decline is slower, so as to keep higher air-flow relative pressure, is pushed easily against the pretension of the second preloading spring 10 Dynamic deflation valve 11, so as to effectively reduce the Opening pressure of turbocharger deflation valve, increases the convection current of deflation valve to whirlpool The reduction effect of the exhaust airstream of booster is taken turns, in the case where atmospheric pressure is higher, the rotating speed of turbine is effectively reduced, i.e., The too high situation of supercharging of turbocharger is avoided, the loss of turbocharger is reduced.
It is worth noting that, the pretightning force of the first preloading spring 6 is less than the pretightning force of the second preloading spring 10, no person enters When air valve 11 is just opened, two-bit triplet pneumatic operated valve 3 is still within A median functions, causes adjustable throttling arrangement 14 can not be to turbine The Opening pressure of booster is adjusted;In the moving process of valve element 4, two-bit triplet pneumatic operated valve 3 can only realize A median functions or B median functions, i.e. A median functions are not intersected with B median functions, and otherwise plenum runner will be recessed by the annulars of second channel 42- second The first annular groove 44- Five-channels 43 of groove 45- third channels 20- are communicated with atmospheric environment, cause the rear end table of single-rod piston 9 Face gas pressure is too low, and deflation valve 11 fails.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (7)

1. a kind of turbocharger deflation valve of adaptive height above sea level, coordinates the gas pressure regulation flow direction of plenum runner The exhaust airstream of turbocharger, it is characterised in that:Including housing (1);
Some demarcation strips (22) are provided with housing (1), housing (1) inner space is divided into two-bit triplet pneumatic operated valve (3), actuator (8), (19) four subdivisions of adjustable throttling arrangement (14) and gasbag-type pressure compensator;
Two-bit triplet pneumatic operated valve (3) and actuator (8) are connected with plenum runner (2);
The air motion direction of the actuated device of two-bit triplet pneumatic operated valve (3) controlling stream (8);
Adjustable throttling arrangement (14) changes the gas pressure size for flowing through actuator (8);
Gasbag-type pressure compensator (19) controls the aperture of adjustable throttling arrangement (14).
2. the turbocharger deflation valve of adaptive height above sea level according to claim 1, it is characterised in that:Actuator (8) is wrapped Include single-rod piston (9), the second preloading spring (10) and deflation valve (11);
The inwall of the piston of single-rod piston (9) and demarcation strip (22) and housing (1) is slidingly sealed cooperation, and piston rod is located at piston Lower end, and piston rod lower end through housing (1) and extending the external world;
Deflation valve (11) is fixed on the lower end of piston rod, controls to adjust the exhaust airstream for flowing to turbocharger;
The rear end side of single-rod piston (9) is connected by first passage (5) with plenum runner (2), and opposite side passes through Three openings (12) are connected with adjustable throttling arrangement (14);
The piston of single-rod piston (9) is connected with the second preloading spring (10).
3. the turbocharger deflation valve of adaptive height above sea level according to claim 2, it is characterised in that:Two-bit triplet is pneumatic Valve (3) includes valve element (4) and the first preloading spring (6);
Valve element (4) upper surface is connected with plenum runner, and valve element (4) lower surface passes through the second opening (21) and ambient atmosphere ring Border is connected, and the demarcation strip (22) between two-bit triplet pneumatic operated valve (3) and adjustable throttling arrangement (14) is provided with third channel (20);
The inwall of valve element (4) and demarcation strip (22) and housing (1) is slidingly sealed cooperation, and the lower end of the valve element (4) is connected with first Preloading spring (6);
Fourth lane (42) and Five-channel (43) are provided with valve element (4), the outer revolution side surface around valve element (4) is respectively equipped with First annular groove (44) and the second annular groove (45), the two ends of fourth lane (42) respectively with plenum runner (2) and Second annular groove (45) is connected, and the two ends of Five-channel (43) connect with the second opening (21) and first annular groove (44) respectively It is logical;
When the second annular groove (45) is communicated with third channel (20), two-bit triplet pneumatic operated valve (3) is in A states, when the When one annular groove (44) is communicated with third channel (20), two-bit triplet pneumatic operated valve (3) is in B states;
And first preloading spring (6) spring force be less than the second preloading spring (10) spring force.
4. the turbocharger deflation valve of adaptive height above sea level according to claim 2, it is characterised in that:Adjustable throttling arrangement (14) fixing bolt (15) and Hooded nut (16) are included;
One end of fixing bolt (15) is fixed on the inwall of housing (1), and the other end coordinates with Hooded nut (16) screw thread;
The top of Hooded nut (16) is tapered, and forms taper throttling passage with the 3rd opening (12) relative engagement;
The middle part of Hooded nut (16) is provided with gear-like structure around the rotation lateral surface of the Hooded nut (16).
5. the turbocharger deflation valve of adaptive height above sea level according to claim 4, it is characterised in that:Hooded nut (16) Non-cap end be sawtooth thread, and with fixing bolt (15) be mutually rotatable cooperation and self-locking, it is internally formed nut confined air Between, a second channel (13) connected with Hooded nut (16) outer surface is offered on the side wall of nut confined space.
6. the turbocharger deflation valve of adaptive height above sea level according to claim 4, it is characterised in that:Gasbag-type pressure is mended Repaying control device (19) includes air bag (18) and control-rod (17);
Air bag (18) is internal, and filled with gas, the upper end of the air bag (18) is fixed on housing, lower end and the upper end of control-rod (17) It is fixedly connected;
Gasbag outer surface is identical with ambient atmosphere environment by the 4th opening (25);
The lower end of control-rod (17) is through dividing plate and extends adjustable throttling arrangement (14), and the control-rod (17) is provided with along control-rod The rack structure of central axial direction, rack structure is engaged with gear-like structure.
7. the turbocharger deflation valve of adaptive height above sea level according to claim 3, it is characterised in that:Two-bit triplet is pneumatic Valve (3) also includes a back-up ring (7), and back-up ring (7) is fixed on the lower section of valve element (4) and third channel (20).
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CN113250810A (en) * 2021-06-29 2021-08-13 四川迅联达智能科技有限公司 Method and system for stabilizing intake pressure of two-stroke engine
CN113757434A (en) * 2021-08-03 2021-12-07 唐山黑猫炭黑有限责任公司 Bleeding valve in carbon black production line

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