CN107060993B - 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 PDFInfo
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- CN107060993B CN107060993B CN201710184485.8A CN201710184485A CN107060993B CN 107060993 B CN107060993 B CN 107060993B CN 201710184485 A CN201710184485 A CN 201710184485A CN 107060993 B CN107060993 B CN 107060993B
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- valve
- turbocharger
- rod
- bit triplet
- throttling set
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
- F02B37/186—Arrangements of actuators or linkage for bypass valves
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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
- Y02T10/12—Improving ICE efficiencies
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
- Safety Valves (AREA)
Abstract
The present invention provides a kind of turbocharger deflation valves of adaptive height above sea level, and the gas pressure of plenum runner is cooperated to adjust the exhaust airstream for flowing to turbocharger, including shell；It is equipped with several demarcation plates in shell, enclosure interior space is divided into four two-bit triplet pneumatic operated valve, actuator, adjustable throttling set and gasbag-type pressure compensator subdivisions；Two-bit triplet pneumatic operated valve and actuator are connected to plenum runner；Two-bit triplet pneumatic operated valve controls the air motion direction for flowing through actuator；Adjustable throttling set changes the gas pressure size for flowing through actuator；Gasbag-type pressure compensator controls the aperture of adjustable throttling set.The turbocharger deflation valve of adaptive height above sea level of the invention, structure is simple, is not necessarily to extra power, and the real-time change of admission pressure is small to the accurate control influence of turbocharger deflation valve cracking pressure.
Description
Technical field
The invention belongs to turbocharger of motor technical fields, more particularly, to a kind of turbine of adaptive height above sea level
Booster vent valve, for controlling the exhaust airstream for flowing to turbocharger.
Background technique
The factor that engine performance is restricted is air inlet deficiency, is increased on internal combustion engine using turbocharger
Air inflow improvement engine performance, which has obtained, widely studies and is successfully applied to engineering, however under certain conditions, whirlpool
It is excessively high to take turns booster plenum ability, causes to break out hypertonia in cylinder, engine reliability decline, in addition to this, turbine
The overspeed operation of booster also results in the damage of turbocharger.It is has been common that in the exhaust for flowing to turbocharger
In air-flow use vent valve, the adjustable exhaust airstream for flowing to turbocharger, thus control the revolving speed of turbine wheel with
And the maximum outbreak pressure in cylinder.
Compared to naturally aspirated engine, the turbocharged engine with vent valve High aititude work when advantageously.
However an insoluble problem is, as height above sea level increases, reduced atmospheric environmental pressure will lead to vent valve and open in advance,
To be difficult to take into account high low altitude area operating condition.For example, atmospheric pressure reduces as height above sea level increases, under conditions of same admission pressure,
The decline of High aititude charge flow rate equally exists air inlet deficiency, degradation problem, therefore High aititude needs higher admission pressure
Dynamic property is kept, but since High aititude atmospheric pressure is lower, overcomes vent valve resistance also to reduce, deflation valve opening pressure is instead
Reduce, engine is caused 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, it can be according to different seas
It pulls out operating condition and adjusts the exhaust airstream for flowing to turbocharger in real time, however above-mentioned control system is there are difficult arrangement, cost is high, can
The problems such as lower by property.By using the vent valve with gasbag-type air pressure self-compensating function, such as denomination of invention " turbocharger row
The Chinese patent ZL2006101263921 of the height above sea level compensation of valve " can have the advantages that structure is simple and expense is low,
But deflation valve opening pressure is controlled since the invention using air bag is directly changed the installation spring principle of spring by lever, one
Aspect causes air bag that need to overcome higher reaction force, increases the volume of air bag to improve necessary actuating power, on the other hand
Spring produces certain interference to air bag during exercise, this causes to become difficult the accurate control of vent valve.
Summary 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.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of turbocharger deflation valve of adaptive height above sea level cooperates the gas pressure of plenum runner to adjust stream
To the exhaust airstream of turbocharger, including shell；
It is equipped with several demarcation plates in shell, 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 to plenum runner；
Two-bit triplet pneumatic operated valve controls the air motion direction for flowing through actuator；
Adjustable throttling set changes the gas pressure size for flowing through actuator；
Gasbag-type pressure compensator controls the aperture of adjustable throttling set.
Further, actuator includes single-rod piston, the first preloading spring and deflation valve；
The piston and demarcation plate of single-rod piston and the inner wall of shell are slidingly sealed cooperation, and piston rod is located at the lower end of piston,
And the lower end of piston rod passes through shell and extends to 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 to by first passage with plenum runner, and the other side passes through throttling opening
It is connected to adjustable throttling set；
The piston of single-rod piston is connected with the first preloading spring.
Further, two-bit triplet pneumatic operated valve includes spool and the second preloading spring；
Spool upper surface is connected to plenum runner, and spool lower surface is connected by valve chamber open and atmospheric environment
Logical, the demarcation plate between two-bit triplet pneumatic operated valve and adjustable throttling set is equipped with second channel；
The inner wall of spool and demarcation plate and shell is slidingly sealed cooperation, and the lower end of the spool is connected with the second preloading spring；
It is equipped with third channel and fourth lane in spool, is respectively equipped with around the outer revolution side surface of spool first annular recessed
The both ends of slot and second annular groove, third channel are connected to plenum runner and second annular groove respectively, fourth lane
Both ends be connected to respectively with valve chamber open and first annular groove；
When second annular groove is communicated with second channel, two-bit triplet pneumatic operated valve is in A states, when first annular recessed
When slot is communicated with second channel, two-bit triplet pneumatic operated valve is in B states；
And second preloading spring spring force less than the first preloading spring spring force.
Further, adjustable throttling set includes fixing bolt and Hooded nut；
One end of fixing bolt is fixed on the inner wall of the housing, and the other end is threadedly engaged with Hooded nut；
The top of Hooded nut is tapered, and forms taper throttling passage with throttling opening relative engagement；
The middle part of Hooded nut is equipped with gear-like structure around the rotation lateral surface of the Hooded nut.
Further, the non-cap end of Hooded nut be sawtooth thread, and with fixing bolt be mutually rotatable cooperation and it is self-locking,
It is internal to form nut confined space, offered on the side wall of nut confined space one be connected to Hooded nut outer surface the 5th
Channel.
Further, gasbag-type pressure compensation control device includes air bag and control-rod；
Inside air bag is fixed on shell 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 as atmospheric environment by pressure equalisation openings；
The lower end of control-rod passes through partition and extends to adjustable throttling set, which is equipped with along control-rod central axis
The rack structure in direction, rack structure are engaged with gear-like structure.
Further, two-bit triplet pneumatic operated valve further includes a retaining ring, and retaining ring is fixed on the lower section of spool and second channel.
Further, shell is stretched out in the lower end of control-rod, and is slidingly sealed cooperation with shell.
Compared with the existing technology, 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, structure is simple, is not necessarily to extra power, into
The real-time change of atmospheric pressure is small to the accurate control influence of turbocharger deflation valve cracking pressure.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations 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 state；
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 state；
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
Spool enlarged diagram.
Description of symbols:
1- shell；2- plenum runner；3- two-bit triplet pneumatic operated valve；4- spool；5- first passage；6- second pre-tightens bullet
Spring；7- retaining ring；8- actuator；9- single-rod piston；The first preloading spring of 10-；11- deflation valve；12- throttling opening；13- the 5th
Channel；14- is adjustable throttling set；15- fixing bolt；16- Hooded nut；17 control-rods；18- air bag；19- gasbag-type pressure is mended
Repay control device；20- second channel；21- valve chamber open；22- demarcation plate；25- pressure equalisation openings；42- third channel；43-
Fourth lane；44- first annular groove；45- second annular groove.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figures 1 to 3, the present invention cooperates the gas pressure of plenum runner to adjust the exhaust for flowing to turbocharger
Air-flow, including shell 1；
Several demarcation plates 22 are equipped in shell 1, by 1 inner space of shell be divided into two-bit triplet pneumatic operated valve 3, actuator 8, can
Adjust 19 4 subdivisions of throttling set 14 and gasbag-type pressure compensator；
Two-bit triplet pneumatic operated valve 3 and actuator 8 are connected to plenum runner 2；
Two-bit triplet pneumatic operated valve 3 controls the air motion direction for flowing through actuator 8；
Adjustable throttling set 14 changes the gas pressure size for flowing through actuator 8；
Gasbag-type pressure compensator 19 controls the aperture of adjustable throttling set 14.
Actuator 8 includes single-rod piston 9, the first preloading spring 10 and deflation valve 11；
The piston and demarcation plate 22 of single-rod piston 9 and the inner wall of shell 1 are slidingly sealed cooperation, and piston rod is located under piston
End, and the lower end of piston rod passes through shell 1 and extends to 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 to by first passage 5 with plenum runner 2, and the other side passes through throttling
Opening 12 is connected to adjustable throttling set 14；
The piston of single-rod piston 9 is connected with the first preloading spring 10.
Two-bit triplet pneumatic operated valve 3 includes spool 4 and the second preloading spring 6；
4 upper surface of spool is connected to plenum runner, and 4 lower surface of spool passes through valve chamber open 21 and atmospheric environment
Connection, the demarcation plate 22 between two-bit triplet pneumatic operated valve 3 and adjustable throttling set 14 are equipped with second channel 20；
The inner wall of spool 4 and demarcation plate 22 and shell 1 is slidingly sealed cooperation, and the lower end of the spool 4 is connected with the second preload
Spring 6；
Third channel 42 and fourth lane 43 are equipped in spool 4, the outer revolution side surface around spool 4 is respectively equipped with first
Annular groove 44 and second annular groove 45, the both ends of third channel 42 respectively with plenum runner 2 and second annular groove
45 connections, the both ends of fourth lane 43 are connected to valve chamber open 21 and first annular groove 44 respectively；
When second annular groove 45 is communicated with second channel 20, two-bit triplet pneumatic operated valve 3 is in A states, when first
When annular groove 44 is communicated with second channel 20, two-bit triplet pneumatic operated valve 3 is in B states；
And second preloading spring 6 spring force less than the first preloading spring 10 spring force.
Adjustable throttling set 14 includes fixing bolt 15 and Hooded nut 16；
One end of fixing bolt 15 is fixed on the inner wall of shell 1, and the other end is threadedly engaged with Hooded nut 16；
The top of Hooded nut 16 is tapered, and forms taper throttling passage with throttling 12 relative engagements of opening；
The middle part of Hooded nut 16 is equipped with gear-like structure around the rotation lateral surface of the Hooded nut 16.
The non-cap end of Hooded nut 16 be sawtooth thread, and with fixing bolt 15 be mutually rotatable cooperation and it is self-locking, in
Portion forms nut confined space, offer on the side wall of nut confined space one be connected to 16 outer surface of Hooded nut the 5th lead to
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 shell, and the upper end of lower end and control-rod 17 is solid
Fixed connection；
Gasbag outer surface is identical as atmospheric environment by pressure equalisation openings 25；
The lower end of control-rod 17 passes through partition and extends to adjustable throttling set 14, which is equipped with along control-rod
The rack structure of heart axis direction, rack structure are engaged with gear-like structure.
Two-bit triplet pneumatic operated valve 3 further includes a retaining ring 7, and retaining ring 7 is fixed on the lower section of spool 4 and second channel 20.
Shell 1 is stretched out in the lower end of control-rod 17, and is slidingly sealed cooperation with shell 1.
Pressure equalisation openings 25 are communicated with atmospheric environment, therefore 18 outer surface of air bag is communicated with atmospheric environment, when
When height above sea level and atmospheric pressure change, 18 size of air bag changes therewith, so that control-rod 17 is driven to elongate or shorten, Jin Ertong
Crossing the rack structure on control-rod 17 drives the gear-like structure in Hooded nut 16 to rotate, and realizes the taper top of Hooded nut 16
Hold relative to throttling opening 12 close to and far from；
When height above sea level increase is that atmospheric pressure reduces, control-rod 17 extends, and Hooded nut 16 is revolved around fixing bolt 15
Turn and far from throttling opening 12, the taper throttling passage aperture that adjustable throttling set 14 cooperation throttling opening 12 is formed tends to increase
Greatly；
When it is that atmospheric pressure increases that height above sea level, which reduces, control-rod 17 shortens, and Hooded nut 16 is revolved around fixing bolt 15
Turn and approach throttling opening 12, the taper throttling passage aperture trend that the adjustable cooperation of throttling set 14 throttling opening 12 is formed subtracts
It is small.
When the relative pressure in plenum runner is less than or equal to the pretightning force of the second preloading spring 6, that is, plenum is logical
Absolute pressure in road is less than or equal to the sum of the pretightning force of external atmospheric pressure and the second preloading spring 6), two-bit triplet pneumatic operated valve
3 are in A median function, and at this time on the one hand plenum runner passes through third channel 42, second annular groove 45, second channel respectively
20 and 14 one end of adjustable throttling set communicate, on the other hand respectively by first passage 5,9 rear end of single-rod piston, taper throttling
Channel 12 and 14 other end of adjustable throttling set communicate；
When the relative pressure in plenum runner be greater than the second preloading spring 6 pretightning force when, that is, plenum runner in
Absolute pressure be greater than external atmospheric pressure and the second preloading spring 6 the sum of pretightning force), spool 4 moves down, and two-bit triplet is pneumatic
Valve 3 is gradually switched to B median function by A median function, and plenum runner passes through first passage 5, single-rod piston 9 without bar respectively at this time
End, adjustable throttling set 14, second channel 20, first annular groove 44, fourth lane 43 and atmospheric environment communicate.Wherein, exist
In the moving process of spool 4, two-bit triplet pneumatic operated valve 3 can only realize A median function or B median function, i.e. A median function and B median function
Do not intersect.
The course of work of the present invention is as follows:
When height above sea level increase be atmospheric pressure reduce when, control-rod 17 extend, control-rod 17 drive Hooded nut 16 around
The rotation of fixing bolt 15 and separate taper throttling passage 12, adjustable 14 aperture of throttling set tend to increase；
When it is that atmospheric pressure increases that height above sea level, which reduces, control-rod 17 shortens, and Hooded nut 16 is revolved around fixing bolt 15
Turn and close to taper throttling passage 12, adjustable 14 aperture of throttling set tends to reduce.
When the relative pressure in plenum runner is less than or equal to the pretightning force of the second preloading spring 6, as shown in Figure 1,
Two-bit triplet pneumatic operated valve 3 is in A median function state, and the 20, second annular of second channel is passed through in adjustable 14 one end of throttling set respectively
Groove 45, third channel 42 and plenum runner 2 communicate, and adjustable 14 other end of throttling set passes through 9 nothing of single-rod piston respectively
Rod end, first passage 5 and plenum runner 2 communicate, and it is approximately zero that adjustable 14 pressure at two ends difference of throttling set is smaller, and by
In spring force of the spring force of the second preloading spring 6 less than the first preloading spring 10, and the relative pressure in plenum runner
Less than or equal to the pretightning force of the second preloading spring 6, therefore single-rod piston will not decline, and deflation valve does not have aperture, i.e., of the invention
The turbocharger deflation valve of adaptive height above sea level will not reduce the exhaust airstream for flowing to turbocharger.
In the process, since the internal closed space that Hooded nut 16 and fixing bolt 15 cooperatively form leads to by the 5th
Road 13 is connected to 16 outer surface of Hooded nut, eventually leads to 16 external and internal pressure of Hooded nut and is not much different, adjustable throttling set 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 to this, since 17 both ends of control-rod are not in the inner space of adjustable throttling set 14, adjustable throttling
Air pressure change in device 14 offsets each other to the influence of the outer surface of control-rod 17, so that it is opposite to effectively reduce air inlet
Interference of the variation of pressure to pressure compensation control device.
When the relative pressure in plenum runner is greater than the pretightning force of the second preloading spring 6, spool 4 is moved down, and two
Threeway pneumatic operated valve 3 is gradually switched to B median function by A median function, as shown in Fig. 2, plenum runner 2 passes through first respectively at this time
Channel 5,9 rear end of single-rod piston, adjustable throttling set 14, second channel 20, first annular groove 44, fourth lane 43 and big
Compression ring border communicates, and apparent pressure difference occur in adjustable 14 both ends of throttling set.
Hooded nut 16 compresses fixing bolt 15 by stream pressure, since Hooded nut 16 is buttless thread,
With preferable self-locking function, therefore Hooded nut 16 can't be rotated under the variation of pressure difference relative to fixed bolt 15
Sliding, this effectively increases gasbag-type pressure compensation control device 19 to the control precision of adjustable throttling set 14.
At the same time, since there is biggish pressure difference and adjustable throttling set 14 to have at adjustable 14 both ends of throttling set
Self-locking function, gasbag-type pressure compensation control device 19 keeps the relative pressure in plenum runner to be greater than the second preload at this time
To the regulating effect of adjustable throttling set 14 before the pretightning force of spring 6, gasbag-type pressure compensation control device 19 is to adjustable throttling
The adjusting of device 14 is no longer worked.
Lead to 9 rear end air-flow of single-rod piston since adjustable 14 aperture of throttling set is relatively large in high altitude localities
Relative pressure decline is very fast, it is difficult to overcome the pretightning force of the first preloading spring 10 to push deflation valve 11, to effectively increase
The cracking pressure of turbocharger deflation valve reduces the convection current of deflation valve and imitates to the reduction of the exhaust airstream of turbocharger
Fruit ensure that the revolving speed of turbine in the lower situation of atmospheric pressure, that is, ensure that the abundant pressurization of turbocharger, into
And it ensure that air input of engine by air；
Lead to 9 rear end air-flow of single-rod piston since adjustable 14 aperture of throttling set is relatively small in low altitude area
Relative pressure decline is slower, to keep higher air-flow relative pressure, the preload easily against the first preloading spring 10 is pushed
Dynamic deflation valve 11 increases the convection current of deflation valve to whirlpool to effectively reduce the cracking pressure of turbocharger deflation valve
The reduction effect for taking turns the exhaust airstream of booster effectively reduces the revolving speed of turbine, i.e., in the higher situation of atmospheric pressure
The excessively high situation of pressurization for avoiding turbocharger, reduces the loss of turbocharger.
It is worth noting that, the pretightning force of the second preloading spring 6 is less than the pretightning force of the first preloading spring 10, no person is put
When air valve 11 is just opened, two-bit triplet pneumatic operated valve 3 is still within A median function, causes adjustable throttling set 14 cannot be to turbine
The cracking pressure of booster is adjusted；In the moving process of spool 4, two-bit triplet pneumatic operated valve 3 can only realize A median function or
B median function, i.e. A median function are not intersected with B median function, and otherwise plenum runner will be recessed by the second annular of third channel 42-
Slot 45- second channel 20- first annular groove 44- fourth lane 43 is communicated with atmospheric environment, leads to 9 rear end table of single-rod piston
Face gas pressure is too low, and deflation valve 11 fails.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of turbocharger deflation valve of adaptive height above sea level cooperates the gas pressure of plenum runner to adjust flow direction
The exhaust airstream of turbocharger, it is characterised in that: including shell (1)；
Several demarcation plates (22) are equipped in shell (1), shell (1) inner space is divided into two-bit triplet pneumatic operated valve (3), actuator
(8), (19) four subdivisions of adjustable throttling set (14) and gasbag-type pressure compensator；
Two-bit triplet pneumatic operated valve (3) and actuator (8) are connected to plenum runner (2)；
Two-bit triplet pneumatic operated valve (3) controls the air motion direction for flowing through actuator (8)；
Adjustable throttling set (14) changes the gas pressure size for flowing through actuator (8)；
Gasbag-type pressure compensator (19) controls the aperture of adjustable throttling set (14)；
Actuator (8) includes single-rod piston (9), the first preloading spring (10) and deflation valve (11)；
The inner wall of the piston of single-rod piston (9) and demarcation plate (22) and shell (1) is slidingly sealed cooperation, and piston rod is located at piston
Lower end, and the lower end of piston rod passes through shell (1) and extends to 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 to by first passage (5) with plenum runner (2), and the other side passes through section
Stream opening (12) is connected to adjustable throttling set (14)；
The piston of single-rod piston (9) is connected with the first preloading spring (10).
2. the turbocharger deflation valve of adaptive height above sea level according to claim 1, it is characterised in that: two-bit triplet is pneumatic
Valve (3) includes spool (4) and the second preloading spring (6)；
Spool (4) upper surface is connected to plenum runner, and spool (4) lower surface passes through valve chamber open (21) and ambient atmosphere ring
Border connection, the demarcation plate (22) between two-bit triplet pneumatic operated valve (3) and adjustable throttling set (14) are equipped with second channel (20)；
The inner wall of spool (4) and demarcation plate (22) and shell (1) is slidingly sealed cooperation, and the lower end of the spool (4) is connected with second
Preloading spring (6)；
Third channel (42) and fourth lane (43) are equipped in spool (4), the outer revolution side surface around spool (4) is respectively equipped with
First annular groove (44) and second annular groove (45), the both ends of third channel (42) respectively with plenum runner (2) and
Second annular groove (45) connection, the both ends of fourth lane (43) connect with valve chamber open (21) and first annular groove (44) respectively
It is logical；
When second annular groove (45) is communicated with second channel (20), two-bit triplet pneumatic operated valve (3) is in A states, when
When one annular groove (44) is communicated with second channel (20), two-bit triplet pneumatic operated valve (3) is in B states；
And second preloading spring (6) spring force less than the first preloading spring (10) spring force.
3. the turbocharger deflation valve of adaptive height above sea level according to claim 1, it is characterised in that: adjustable throttling set
It (14) include fixing bolt (15) and Hooded nut (16)；
One end of fixing bolt (15) is fixed on the inner wall of shell (1), and the other end is threadedly engaged with Hooded nut (16)；
The top of Hooded nut (16) is tapered, and forms taper throttling passage with throttling opening (12) relative engagement；
The middle part of Hooded nut (16) is equipped with gear-like structure around the rotation lateral surface of the Hooded nut (16).
4. the turbocharger deflation valve of adaptive height above sea level according to claim 3, it is characterised in that: Hooded nut (16)
Non-cap end be sawtooth thread, and be mutually rotatable cooperation and self-locking with fixing bolt (15), it is internal to form nut confined air
Between, a Five-channel (13) being connected to Hooded nut (16) outer surface is offered on the side wall of nut confined space.
5. the turbocharger deflation valve of adaptive height above sea level according to claim 3, 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 filled with gas, and the upper end of the air bag (18) is fixed on shell, the upper end of lower end and control-rod (17)
It is fixedly connected；
Gasbag outer surface is identical as atmospheric environment by pressure equalisation openings (25)；
The lower end of control-rod (17) passes through partition and extends to adjustable throttling set (14), which is equipped with along control-rod
The rack structure of central axial direction, rack structure are engaged with gear-like structure.
6. 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) further includes a retaining ring (7), and retaining ring (7) is fixed on the lower section of spool (4) and second channel (20).
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| CN112696511B (en) * | 2020-12-29 | 2023-01-10 | 重庆交通职业学院 | Rail transit obstacle clearing device |
| CN112922721B (en) * | 2021-04-09 | 2022-08-05 | 常州市佳科汽车零部件有限公司 | Timely response turbocharger for automobile engine |
| CN113250810B (en) * | 2021-06-29 | 2021-10-01 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4703625A (en) * | 1985-02-25 | 1987-11-03 | Ranco Incorporated | Turbocharger control system |
| CN101096926B (en) * | 2006-06-30 | 2011-02-02 | 卡特彼勒公司 | Altitude compensation of turbo-charger exhaust valve |
| EP2092175A1 (en) * | 2006-12-11 | 2009-08-26 | Borgwarner, Inc. | Turbocharger |
| WO2015038414A1 (en) * | 2013-09-10 | 2015-03-19 | Borgwarner Inc. | Ball type pressure relieving actuator for use with turbochargers |
| CN105464790B (en) * | 2015-12-11 | 2018-08-07 | 中国北方发动机研究所(天津) | A kind of two-stage supercharging control system for adapting to become height above sea level |
| CN106438022A (en) * | 2016-12-13 | 2017-02-22 | 湖南天雁机械有限责任公司 | Bypass air bleeding mechanism of turbocharger and design method of bypass air bleeding mechanism |
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