CN103775197A - Turbocharger with circumferential deflation function - Google Patents

Turbocharger with circumferential deflation function Download PDF

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Publication number
CN103775197A
CN103775197A CN201410057079.1A CN201410057079A CN103775197A CN 103775197 A CN103775197 A CN 103775197A CN 201410057079 A CN201410057079 A CN 201410057079A CN 103775197 A CN103775197 A CN 103775197A
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CN
China
Prior art keywords
venting
hole
air release
release plates
circle
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410057079.1A
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Chinese (zh)
Inventor
沃鸣杰
王银凤
罗翔亮
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Ningbo Weifu Tianli Turbocharging Technology Co Ltd
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Ningbo Weifu Tianli Turbocharging Technology Co Ltd
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Priority to CN201410057079.1A priority Critical patent/CN103775197A/en
Publication of CN103775197A publication Critical patent/CN103775197A/en
Pending legal-status Critical Current

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    • 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

Abstract

The invention discloses a turbocharger with a circumferential deflation function. The turbocharger with the circumferential deflation function comprises a turbine case and a deflation valve assembly; the turbine case is provided with an exhaust gas outlet connected with a flange; the wall of the turbine case is provided with a bypass gas discharge hole communicated with an exhaust gas channel of the turbine case; the deflation valve assembly comprises a pressure valve, a connecting rod and a linkage crank; the bypass gas discharge hole is of an elongated oval shape; the inner circumferential wall of the exhaust gas outlet, which is connected with the flange, is connected with a round rotatable deflation piece and a round fixed deflation piece; the round rotatable deflation piece is circumferentially provided with a plurality of first gas discharge through holes communicated with the bypass gas discharge hole; the round fixed deflation piece is circumferentially provided with a plurality of second gas discharge through holes; the first gas discharge through holes correspond to the second gas discharge through holes in positions; a transmission mechanism capable of driving the round rotatable deflation piece to rotate is arranged between the round rotatable deflation piece and the linkage crank. The turbocharger with the circumferential deflation function has the advantage of achieving the change of deflation amount to discharge sufficient exhaust gas in a bypass mode by changing the overlap of the first gas discharge through holes and the second gas discharge through holes.

Description

A kind of turbosupercharger with circumferential venting function
Technical field
The present invention relates to a kind of supercharging equipment, especially relate to a kind of turbosupercharger with circumferential venting function.
Background technique
The target of current motor is requirement low-speed big, this just requires turbosupercharger in the time of low engine speed, when namely the motor unit time, air displacement was little, export larger energy, this just needs the circulation area of the turbine box in turbosupercharger less, could, under the condition of small flow, set up large expansion ratio like this.But, when high engine speeds, also there is high power requirements, too small circulation area is in the time of high engine speeds, when namely the unit time, air displacement was large, too small circulation area can not meet exhaust requirements, this just needs bleed valve that a part of waste gas is directly entered to outlet pipe, and does not pass through turbine box.
But, existing common turbosupercharger as depicted in figs. 1 and 2, it comprises intermediate (bearing support) 1, turbine box 2 and be arranged at the turbine wheel 21 in turbine box 2, pressure shell 3 and be arranged at the compressor impeller 31 in pressure shell 3, rotating shaft 4 and bleed valve structure, turbine box 2 is attached to one end of intermediate 1, on the tank wall of turbine box 2, be provided with the bypass vent hole 23 being communicated with the waste gas runner 22 of turbine box 2, pressure shell 3 is attached to the other end of intermediate 1, rotating shaft 4 is rotatably arranged in the bearing unit 5 being contained in intermediate 1, turbine wheel 21 is connected in one end of rotating shaft 4, compressor impeller 31 is connected in the other end of rotating shaft 4, bleed valve structure comprises pressure valve 61, connecting rod 62, interlock crank 63 and venting valve 64, pressure valve 61 is installed on pressure shell 3 by valve mounting bracket 65, pressure valve 61 is connected with venting valve 64 with interlock crank 63 by connecting rod 62, venting valve 64 is placed on bypass vent hole 23.Can be by the aperture size of the pressure change venting valve 64 of adjusting pressure valve 61 when this turbocharger operation, to realize the exhaust gas bypass of turbine box, but there is following problem in it: 1) due to venting valve processing problems and position problems, venting valve can only do circular, therefore in order to cover bypass vent hole, bypass vent hole can only also do circular (as shown in Figure 2), and be subject to the restriction of the waste gas runner position of turbine box, it is excessive that bypass vent hole can not do, maximum diameter can only reach the width of waste gas runner, has so just limited discharge quantity; 2) because venting valve has hindered the proper flow of bypass waste gas in opening, therefore waste gas bypass smoothly, waste gas will occur could bypass enter outlet pipe after significantly turnover, and this has just further affected discharge quantity; 3) because discharge quantity is very limited, therefore in large air displacement, can not emit on request enough waste gas, unnecessary waste gas has still passed through turbine box, and because the circulation area of turbine box is too small, therefore when unnecessary waste gas is by turbine box, turbine pressure can be suppressed to height, thereby will cause engine back pressure too high, and finally cause motor pumping loss excessive, engine power declines; 4) exhaust pressure that is motor due to the air pressure of waste gas, larger, so the active force that waste gas acts on venting valve can not be ignored, but due to the variation of opening angle and engine back pressure, the pressure acting on venting valve is often to change, so just make bypass waste gas from being up to the variation of minimum aperture, the control force of pressure valve is unsettled.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of turbosupercharger with circumferential venting function, and it is simple in structure, and can bypass go out enough waste gas.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of turbosupercharger with circumferential venting function, comprise turbine box and bleed valve assembly, on described turbine box, be provided with the waste gas outlet connecting flange being connected with the air discharging manifold flange of motor, on the tank wall of described turbine box, be provided with the bypass vent hole being connected with the waste gas runner of described turbine box, described bleed valve assembly comprises pressure valve, connecting rod and interlock crank, it is characterized in that described bypass vent hole is oblong, on the inner circle wall of described waste gas outlet connecting flange, be connected with circular rotatable air release plates and circular fixing air release plates, in the rotatable air release plates of described circle, edge is circumferentially provided with the first venting through hole that multiple with described bypass vent hole is connected, in the fixing air release plates of described circle, edge is circumferentially provided with multiple the second venting through holes, the first described venting through hole is corresponding with the position of the second described venting through hole, between the rotatable air release plates of described circle and described interlock crank, be provided with the driving mechanism that drives the rotatable air release plates of described circle to rotate.
In described waste gas outlet connecting flange, be wholely set vertically turbine exhaust discharge tube, space between the periphery wall of the inner circle wall of described waste gas outlet connecting flange and described turbine exhaust discharge tube forms the exhaust gas bypass chamber being connected with described bypass vent hole, described exhaust gas bypass chamber is connected with the first described venting through hole, the rotatable air release plates of described circle and described circle are fixed in air release plates and are provided with center hole, the periphery wall of the outside axle head of the hole wall of corresponding and two center holes of the central hole location of the fixing air release plates of the center hole of the described rotatable air release plates of circle and described circle and described turbine exhaust discharge tube is close to, at this, turbine exhaust discharge tube is not only for discharging turbine exhaust, and for supporting circular rotatable air release plates and circular fixing air release plates.
Described driving mechanism comprises the initiative taper generating gear and the driven angular wheel that are meshed, the axle head of described initiative taper generating gear is connected with described interlock crank, and the axle head of described driven angular wheel and the rotatable air release plates of described circle dorsad a side shaft end end face of the described fixing air release plates of circle are connected; At this, the axle head of driven angular wheel and circular rotatable air release plates dorsad a side shaft end end face of circular fixing air release plates are connected with welding manner, adopt the cooperation of initiative taper generating gear and driven angular wheel to realize circular rotatable air release plates rotation, simple in structure.
The fixing air release plates of described circle towards be provided with vertically on a side shaft end end face of the described rotatable air release plates of circle with center hole and position and the described second corresponding boss of through hole of exitting, the center hole of described boss and described the second venting through hole are straight-through, and the other end of described boss and the rotatable air release plates of described circle are fixed a side shaft end end contact of air release plates towards described circle, at this, by the fixing air release plates of circle towards arrange vertically on a side shaft end end face of the rotatable air release plates of circle with center hole and position and the second corresponding boss of through hole of exitting, and the other end of boss and the side shaft end end contact of circular rotatable air release plates towards the fixing air release plates of circle, therefore circular rotatable air release plates is only subject to and the contact friction force of boss in rotating, this contact friction force is because area of contact is less, little with the relation of engine back pressure, therefore this contact friction force substantially remains unchanged in the process of exhaust gas bypass, and numerical value is less, being convenient to pressure valve regulates continuously.
In the rotatable air release plates of described circle, edge is circumferentially evenly provided with eight first venting through holes, in the fixing air release plates of described circle, along being circumferentially evenly provided with eight second venting through holes, the first described venting through hole is consistent with the aperture of the second described venting through hole; At this, verify that to be by experiment restricted to eight be most suitable by the number of the first venting through hole and the second venting through hole, i.e. combination property the best of turbosupercharger in this case.
In the rotatable air release plates of described circle, edge is circumferentially evenly provided with eight first venting through holes, in the fixing air release plates of described circle, edge is circumferentially evenly provided with eight second venting through holes, the aperture of the venting of first described in adjacent two through hole is inconsistent, the aperture of the venting of second described in adjacent two through hole is inconsistent, and the first described venting through hole of small aperture is consistent with the aperture of the second described venting through hole of small aperture, wide-aperture the first described venting through hole is consistent with the aperture of wide-aperture the second described venting through hole; At this, in the time that rotating, the rotatable air release plates of circle first opens wide-aperture the second venting through hole, in the time turning over several angle, open again the second venting through hole of small aperture, can effectively improve like this control ability of discharge quantity, avoid causing the sudden change of engine operating condition.
Compared with prior art, the invention has the advantages that:
1) on the inner circle wall of this turbosupercharger by the waste gas outlet connecting flange at turbine box, connect a rotatable air release plates of circle and a fixing air release plates of circle, utilize circular rotatable air release plates and circular fixing air release plates to substitute traditional venting valve, because edge in the rotatable air release plates of circle is circumferentially provided with multiple the first venting through holes that are connected with bypass vent hole, in circular fixing air release plates, edge is circumferentially provided with multiple the second venting through holes, and the first venting through hole is corresponding with the position of the second venting through hole, therefore can drive circular rotatable air release plates to rotate to realize the change of the first venting through hole and the second venting through hole contact ratio by driving mechanism, thereby the change that realizes discharge quantity (is maximum exhaust gas bypass state in the time that the first venting through hole overlaps completely with the second venting through hole, in the time that the first venting through hole does not overlap with the second venting through hole, it is closed state, now not bypass of waste gas), make this turbosupercharger bypass to go out enough waste gas, in large air displacement, also can not reduce like this power of motor.
2) combination of the circular rotatable air release plates of this turbosupercharger utilization and circular fixing air release plates realizes exhaust gas bypass, the first venting through hole and the second venting through hole can not hinder the proper flow of bypass waste gas, what waste gas can not transferred smoothly pass through, and the first venting through hole and the second venting through hole enter in the gas exhaust manifold of motor, have further improved the exhaust gas bypass ability of turbine box.
3) combination of the circular rotatable air release plates of this turbosupercharger utilization and circular fixing air release plates realizes exhaust gas bypass, and circular rotatable air release plates and circular fixing air release plates are not subject to the impact of the active force of the waste gas by bypass vent hole, having solved existing turbosupercharger often changes and causes bypass waste gas from being up to the variation of minimum aperture, the unsettled problem of pressure valve control force because acting on the pressure of exitting on valve.
4) the circular rotatable air release plates of this turbosupercharger utilization and circular fixing air release plates have substituted traditional venting valve, therefore bypass vent hole can be designed to oblong, in limited space, the area of bypass vent hole can be maximized like this, thereby increase discharge quantity.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of existing common turbosupercharger;
Fig. 2 is the axle side schematic diagram of existing common turbosupercharger;
Fig. 3 is the cross-sectional schematic of turbosupercharger of the present invention;
Fig. 4 is the axle side schematic diagram of turbosupercharger of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
A kind of turbosupercharger with circumferential venting function that the present invention proposes, as shown in Figure 3 and Figure 4, it comprises intermediate (bearing support) 1, turbine box 2 and be arranged at the turbine wheel 21 in turbine box 2, pressure shell 3 and be arranged at the compressor impeller 31 in pressure shell 3, rotating shaft 4 and bleed valve assembly, turbine box 2 is attached to one end of intermediate 1, on turbine box 2, be provided with the waste gas outlet connecting flange 24 being connected with the air discharging manifold flange of motor, on the tank wall of turbine box 2, be provided with and be connected with the waste gas runner 22 of turbine box 2 and be oblong bypass vent hole 23, pressure shell 3 is attached to the other end of intermediate 1, rotating shaft 4 is rotatably arranged in the bearing unit 5 being contained in intermediate 1, turbine wheel 21 is connected in one end of rotating shaft 4, compressor impeller 31 is connected in the other end of rotating shaft 4, bleed valve assembly comprises pressure valve 61, connecting rod 62 and interlock crank 63, pressure valve 61 is installed on pressure shell 3 by valve mounting bracket 65, pressure valve 61 is connected with interlock crank 63 by connecting rod 62, in waste gas outlet connecting flange 24, be wholely set vertically turbine exhaust discharge tube 25, space between the periphery wall of the inner circle wall of waste gas outlet connecting flange 24 and turbine exhaust discharge tube 25 forms the exhaust gas bypass chamber 26 being connected with bypass vent hole 23, on the inner circle wall of waste gas outlet connecting flange 24, be connected with circular rotatable air release plates 8 and circular fixing air release plates 9, in circular rotatable air release plates 8, edge is circumferentially provided with multiple the first venting through holes 81 that are connected with bypass vent hole 23 by exhaust gas bypass chamber 26, in circular fixing air release plates 9, edge is circumferentially provided with multiple the second venting through holes 91, the first venting through hole 81 is corresponding with the position of the second venting through hole 91, in circular rotatable air release plates 8 and circular fixing air release plates 9, be provided with center hole, the center hole of circular rotatable air release plates 8 is close to the central hole location the periphery wall corresponding and hole wall of two center holes and the outside axle head of turbine exhaust discharge tube 25 of circular fixing air release plates 9, between circular rotatable air release plates 8 and interlock crank 63, be provided with the driving mechanism that drives circular rotatable air release plates 8 to rotate.
In the present embodiment, driving mechanism comprises the initiative taper generating gear 82 and the driven angular wheel 83 that are meshed, the axle head of initiative taper generating gear 82 is connected with interlock crank 63, the axle head of driven angular wheel 83 and circular rotatable air release plates 8 dorsad a side shaft end end face of circular fixing air release plates 9 are connected, in the time that the inlet pressure of pressure valve 61 changes, pressure valve 61 drives interlock crank 63 and then drives initiative taper generating gear 82 to rotate, and the driven angular wheel 83 coordinating with it drives circular rotatable air release plates 8 to rotate; At this, the axle head of driven angular wheel 83 and circular rotatable air release plates 8 dorsad a side shaft end end face of circular fixing air release plates 9 are connected with welding manner, the cooperation of employing initiative taper generating gear 82 and driven angular wheel 83 realizes circular rotatable air release plates 8 and rotates, simple in structure.
In the present embodiment, circular fixing air release plates 9 towards be provided with vertically on a side shaft end end face of the rotatable air release plates 8 of circle with center hole and position and the second corresponding boss 92 of through hole 91 of exitting, the center hole of boss 92 and the second venting through hole 91 are straight-through, the other end of boss 92 and the side shaft end end contact of circular rotatable air release plates 8 towards the fixing air release plates 9 of circle, at this, by the fixing air release plates 9 of circle towards arrange vertically on a side shaft end end face of the rotatable air release plates 8 of circle with center hole and position and the second corresponding boss 92 of through hole 91 of exitting, and the other end of boss 92 and the side shaft end end contact of circular rotatable air release plates 8 towards the fixing air release plates 9 of circle, therefore circular rotatable air release plates 8 is only subject to and the contact friction force of boss 92 in rotating, this contact friction force is because area of contact is less, little with the relation of engine back pressure, therefore this contact friction force substantially remains unchanged in the process of exhaust gas bypass, and numerical value is less, being convenient to pressure valve 61 regulates continuously.
In the present embodiment, in circular rotatably air release plates 8, along being circumferentially evenly provided with eight first venting through holes 81, in circular fixing air release plates 9, edge is circumferentially evenly provided with eight second venting through holes 91; At this, verify that to be by experiment restricted to eight be most suitable by the number of the first venting through hole 81 and the second venting through hole 91, i.e. combination property the best of turbosupercharger in this case.The aperture of adjacent two first venting through holes is inconsistent, the aperture of adjacent two second venting through holes is inconsistent, and the first venting through hole of small aperture is consistent with the aperture of the second venting through hole of small aperture, wide-aperture the first venting through hole is consistent with the aperture of wide-aperture the second venting through hole, the first all venting through holes can certainly be become to consistent with the second all aperture design of exitting through hole.

Claims (6)

1. one kind has the turbosupercharger of circumferential venting function, comprise turbine box and bleed valve assembly, on described turbine box, be provided with waste gas outlet connecting flange, on the tank wall of described turbine box, be provided with the bypass vent hole being connected with the waste gas runner of described turbine box, described bleed valve assembly comprises pressure valve, connecting rod and interlock crank, it is characterized in that described bypass vent hole is oblong, on the inner circle wall of described waste gas outlet connecting flange, be connected with circular rotatable air release plates and circular fixing air release plates, in the rotatable air release plates of described circle, edge is circumferentially provided with the first venting through hole that multiple with described bypass vent hole is connected, in the fixing air release plates of described circle, edge is circumferentially provided with multiple the second venting through holes, the first described venting through hole is corresponding with the position of the second described venting through hole, between the rotatable air release plates of described circle and described interlock crank, be provided with the driving mechanism that drives the rotatable air release plates of described circle to rotate.
2. a kind of turbosupercharger with circumferential venting function according to claim 1, it is characterized in that being wholely set vertically turbine exhaust discharge tube in described waste gas outlet connecting flange, space between the periphery wall of the inner circle wall of described waste gas outlet connecting flange and described turbine exhaust discharge tube forms the exhaust gas bypass chamber being connected with described bypass vent hole, described exhaust gas bypass chamber is connected with the first described venting through hole, the rotatable air release plates of described circle and described circle are fixed in air release plates and are provided with center hole, the periphery wall of the outside axle head of the hole wall of corresponding and two center holes of the central hole location of the fixing air release plates of the center hole of the described rotatable air release plates of circle and described circle and described turbine exhaust discharge tube is close to.
3. a kind of turbosupercharger with circumferential venting function according to claim 1 and 2, it is characterized in that described driving mechanism comprises the initiative taper generating gear and the driven angular wheel that are meshed, the axle head of described initiative taper generating gear is connected with described interlock crank, and the axle head of described driven angular wheel and the rotatable air release plates of described circle dorsad a side shaft end end face of the described fixing air release plates of circle are connected.
4. a kind of turbosupercharger with circumferential venting function according to claim 3, it is characterized in that the fixing air release plates of described circle towards be provided with vertically on a side shaft end end face of the described rotatable air release plates of circle with center hole and position and the described second corresponding boss of through hole of exitting, the center hole of described boss and described the second venting through hole are straight-through, and the other end of described boss and the rotatable air release plates of described circle are fixed a side shaft end end contact of air release plates towards described circle.
5. a kind of turbosupercharger with circumferential venting function according to claim 4, it is characterized in that in the described rotatable air release plates of circle along being circumferentially evenly provided with eight first venting through holes, in the fixing air release plates of described circle, along being circumferentially evenly provided with eight second venting through holes, the first described venting through hole is consistent with the aperture of the second described venting through hole.
6. a kind of turbosupercharger with circumferential venting function according to claim 4, it is characterized in that in the described rotatable air release plates of circle along being circumferentially evenly provided with eight first venting through holes, in the fixing air release plates of described circle, edge is circumferentially evenly provided with eight second venting through holes, the aperture of the venting of first described in adjacent two through hole is inconsistent, the aperture of the venting of second described in adjacent two through hole is inconsistent, and the first described venting through hole of small aperture is consistent with the aperture of the second described venting through hole of small aperture, wide-aperture the first described venting through hole is consistent with the aperture of wide-aperture the second described venting through hole.
CN201410057079.1A 2014-02-20 2014-02-20 Turbocharger with circumferential deflation function Pending CN103775197A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107524516A (en) * 2016-06-15 2017-12-29 通用汽车环球科技运作有限责任公司 Waste gate closing position location feature part
CN113792502A (en) * 2021-09-15 2021-12-14 中国船舶重工集团公司第七0三研究所 Design method for middle-stage anti-surge bleeding flow of gas turbine compressor at low rotating speed

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US5146752A (en) * 1989-12-18 1992-09-15 Dr. Ing. H.C.F. Porsche Ag Exhaust gas turbocharger on an internal-combustion engine
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EP2306054A1 (en) * 2009-10-01 2011-04-06 Wolfgang Barth GmbH & Co. KG Turning head valve
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CN102667098A (en) * 2009-11-03 2012-09-12 霍尼韦尔国际公司 Turbocharger with annular rotary bypass valve for the turbine
CN102959196A (en) * 2010-04-30 2013-03-06 霍尼韦尔国际公司 Turbocharger with turbine nozzle vanes and an annular rotary bypass valve
CN203769934U (en) * 2014-02-20 2014-08-13 宁波威孚天力增压技术有限公司 Turbocharger with circumferential degassing function

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606944A1 (en) * 1986-03-04 1987-09-10 Audi Ag Exhaust turbocharger
US5146752A (en) * 1989-12-18 1992-09-15 Dr. Ing. H.C.F. Porsche Ag Exhaust gas turbocharger on an internal-combustion engine
US20050028796A1 (en) * 2003-08-07 2005-02-10 Mack Trucks, Inc. Cooler bypass valve system and method
JP2008128060A (en) * 2006-11-20 2008-06-05 Toyota Motor Corp Exhaust bypass device for turbocharger
EP2306054A1 (en) * 2009-10-01 2011-04-06 Wolfgang Barth GmbH & Co. KG Turning head valve
CN102597463A (en) * 2009-10-30 2012-07-18 罗伯特·博世有限公司 Regulating device for an actuator
CN102667098A (en) * 2009-11-03 2012-09-12 霍尼韦尔国际公司 Turbocharger with annular rotary bypass valve for the turbine
CN102959196A (en) * 2010-04-30 2013-03-06 霍尼韦尔国际公司 Turbocharger with turbine nozzle vanes and an annular rotary bypass valve
CN203769934U (en) * 2014-02-20 2014-08-13 宁波威孚天力增压技术有限公司 Turbocharger with circumferential degassing function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107524516A (en) * 2016-06-15 2017-12-29 通用汽车环球科技运作有限责任公司 Waste gate closing position location feature part
CN113792502A (en) * 2021-09-15 2021-12-14 中国船舶重工集团公司第七0三研究所 Design method for middle-stage anti-surge bleeding flow of gas turbine compressor at low rotating speed
CN113792502B (en) * 2021-09-15 2024-04-02 中国船舶重工集团公司第七0三研究所 Design method for middle stage anti-asthma air release flow under low rotation speed of gas turbine compressor

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