WO2015190362A1 - 過給機 - Google Patents
過給機 Download PDFInfo
- Publication number
- WO2015190362A1 WO2015190362A1 PCT/JP2015/066007 JP2015066007W WO2015190362A1 WO 2015190362 A1 WO2015190362 A1 WO 2015190362A1 JP 2015066007 W JP2015066007 W JP 2015066007W WO 2015190362 A1 WO2015190362 A1 WO 2015190362A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- housing
- valve
- bearing
- base
- Prior art date
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- 238000003780 insertion Methods 0.000 claims abstract description 22
- 230000037431 insertion Effects 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/105—Final actuators by passing part of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/35—Combustors or associated equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- 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
Definitions
- the present invention relates to a supercharger including a valve that opens and closes a flow path that opens in an internal space of a housing.
- a turbocharger in which a rotating shaft having a turbine impeller provided at one end and a compressor impeller provided at the other end is rotatably held by a bearing housing.
- a supercharger is connected to the engine, the turbine impeller is rotated by exhaust gas discharged from the engine, and the compressor impeller is rotated via the rotating shaft by the rotation of the turbine impeller.
- the supercharger compresses air and sends it to the engine as the compressor impeller rotates.
- the supercharger described in Patent Document 1 includes a bypass flow path.
- the bypass passage allows a part of the exhaust gas to flow from the turbine housing to the downstream of the turbine impeller without passing through the turbine scroll passage leading to the turbine impeller. That is, a part of the exhaust gas passes through the bypass flow path, thereby bypassing the turbine scroll flow path and the turbine impeller.
- This bypass channel is opened and closed by a valve.
- the valve is provided in the turbine housing and is connected to the shaft.
- the shaft is rotatably supported by a bearing portion installed in the turbine housing.
- the bearing portion is installed in the turbine housing so as to penetrate inside and outside of the turbine housing.
- An object of the present invention is to provide a supercharger capable of suppressing vibrations of a shaft for operating a valve and abnormal noise due to vibrations.
- a first aspect of the present invention is a supercharger, in which a housing having an internal space formed therein and a bearing hole provided in the housing and penetrating between the internal space of the housing and the outside of the housing are formed.
- a valve that is connected to the shaft via an attachment member and opens and closes a flow path that opens into the internal space as the shaft rotates, and the attachment member has a base formed with an insertion hole through which the shaft is inserted, And an extension portion that is integrally formed with the base portion and extends in the radial direction of the shaft from the base portion to hold the valve, and the base portion covers at least a part of the shaft in the axial direction.
- Either one or both of the base part and the extension part may protrude in the axial direction of the shaft from the valve.
- a second aspect of the present invention is a supercharger, wherein a housing having an internal space formed therein, and a bearing hole provided in the housing and penetrating between the internal space of the housing and the outside of the housing are formed.
- a valve that is connected to the shaft via an attachment member and opens and closes a flow path that opens into the internal space as the shaft rotates, and the attachment member has a base formed with an insertion hole through which the shaft is inserted, And an extension portion that is integrally formed with the base portion and extends from the base portion in the radial direction of the shaft to hold the valve, and either or both of the base portion and the extension portion are shafts rather than the valve.
- the end portion on the opposite side to the bearing portion side of both end portions in the axial direction of the shaft may protrude in the axial direction of the shaft from the valve.
- One end of the shaft may protrude from the insertion hole.
- FIG. 1 is a schematic cross-sectional view of a supercharger according to an embodiment of the present invention.
- 2A and 2B are external views of a turbine housing according to an embodiment of the present invention.
- FIG. 2A is a view of a discharge port of the turbine housing as viewed from the front, and
- FIG. ) Is a side view of the turbine housing.
- FIGS. 3A to 3C are views for explaining a mounting plate according to an embodiment of the present invention
- FIG. 3A is a perspective view of the mounting plate according to the embodiment of the present invention.
- FIG. 3B is a side view of the mounting plate according to the present embodiment
- FIG. 3C is a top view of the mounting plate according to the present embodiment.
- FIG. 4 (a) to 4 (c) are diagrams for explaining a mounting plate according to a comparative example
- FIG. 4 (a) is a perspective view of the mounting plate according to the comparative example
- FIG. 4 (b) is a comparative diagram.
- FIG.4 (c) is a top view of the mounting plate which concerns on a comparative example.
- FIG. 5 is a view for explaining the connection structure of the valve to the mounting plate.
- FIG. 6 is an explanatory diagram for explaining the assembly of the valve and the mounting plate to the shaft.
- FIG. 7 is a perspective view of a turbine housing in which a shaft, a valve, and a mounting plate are assembled.
- FIG. 1 is a schematic sectional view of the supercharger C.
- the arrow L shown in FIG. 1 will be described as a direction indicating the left side of the supercharger C
- the arrow R will be described as a direction indicating the right side of the supercharger C.
- the supercharger C includes a supercharger main body 1.
- the turbocharger body 1 includes a bearing housing 2, a turbine housing 4 connected to the left side of the bearing housing 2 by a fastening mechanism 3, and a compressor housing 6 connected to the right side of the bearing housing 2 by fastening bolts 5. Have. These are integrated.
- a protrusion 2 a is provided on the outer peripheral surface of the bearing housing 2 in the vicinity of the turbine housing 4.
- the protrusion 2 a protrudes in the radial direction of the bearing housing 2.
- a projection 4 a is provided on the outer peripheral surface of the turbine housing 4 in the vicinity of the bearing housing 2.
- the protrusion 4 a protrudes in the radial direction of the turbine housing 4.
- the bearing housing 2 and the turbine housing 4 are fixed by fastening the protrusions 2 a and 4 a with the fastening mechanism 3.
- the fastening mechanism 3 includes a fastening band (for example, G coupling) that holds the protrusions 2a and 4a.
- the bearing housing 2 is formed with a through hole 2b that penetrates the supercharger C in the left-right direction.
- a rotary shaft 7 is rotatably supported in the through hole 2b.
- a turbine impeller 8 is integrally fixed to the left end portion of the rotating shaft 7.
- the turbine impeller 8 is rotatably accommodated in the turbine housing 4.
- a compressor impeller 9 is integrally fixed to the right end portion of the rotating shaft 7.
- the compressor impeller 9 is rotatably accommodated in the compressor housing 6.
- An air inlet 10 is formed in the compressor housing 6.
- the intake port 10 opens to the right side of the supercharger C and is connected to an air cleaner (not shown).
- the bearing housing 2 and the compressor housing 6 are connected by the fastening bolt 5, the opposing surfaces of the two housings 2 and 6 form a diffuser passage 11 that compresses and pressurizes air.
- the diffuser flow path 11 is formed in an annular shape from the radially inner side to the outer side of the rotating shaft 7 (compressor impeller 9). The diffuser flow path 11 communicates with the intake port 10 via the compressor impeller 9 on the radially inner side.
- the compressor housing 6 is provided with a compressor scroll passage 12.
- the compressor scroll passage 12 is formed in an annular shape, and is positioned on the outer side in the radial direction of the rotating shaft 7 (compressor impeller 9) than the diffuser passage 11.
- the compressor scroll passage 12 communicates with an intake port (not shown) of the engine. Further, the compressor scroll passage 12 communicates with the diffuser passage 11. Therefore, when the compressor impeller 9 rotates, the air is sucked into the compressor housing 6 from the intake port 10, is pressurized by the diffuser flow path 11 and the compressor scroll flow path 12, and is guided to the intake port of the engine.
- a discharge port 13 is formed in the turbine housing 4.
- the discharge port 13 opens to the left side of the supercharger C and is connected to an exhaust gas purification device (not shown).
- the turbine housing 4 has an internal space S that includes the discharge port 13 as one end. In the internal space S, a later-described valve 16 is arranged.
- the turbine housing 4 is provided with an internal flow path 14 and a turbine scroll flow path 15.
- the turbine scroll flow path 15 is formed in an annular shape and is located on the radially outer side of the rotary shaft 7 (turbine impeller 8) than the internal flow path 14.
- the turbine scroll passage 15 communicates with a gas inlet 17 (see FIG. 2B) through which exhaust gas discharged from an engine exhaust manifold (not shown) is guided.
- the turbine scroll flow path 15 communicates with the internal flow path 14. Accordingly, the exhaust gas is guided from the gas inlet 17 to the turbine scroll flow path 15 and is guided to the discharge port 13 via the internal flow path 14, the turbine impeller 8, and the internal space S. In this distribution process, the exhaust gas rotates the turbine impeller 8. The rotational force of the turbine impeller 8 is transmitted to the compressor impeller 9 via the rotating shaft 7, whereby the compressor impeller 9 rotates. The air is boosted by the rotational force of the compressor impeller 9 and guided to the intake port of the engine.
- FIGS. 2A and 2B are external views of the turbine housing 4.
- FIG. 2A is a view of the discharge port 13 of the turbine housing 4 as viewed from the front.
- FIG. 2B is a side view of the turbine housing 4.
- the gas inflow port 17 is open to the lower side of the turbine housing 4.
- a flow path communicating from the gas inlet 17 to the turbine scroll flow path 15 is branched upstream of the turbine scroll flow path 15.
- an outlet end 18 a of a bypass flow path 18 (flow path) that is a branched flow path is formed on the wall surface (inner wall) of the turbine housing 4 that forms the internal space S including the discharge port 13. Is formed.
- Exhaust gas flows from the gas inlet 17, and a part of the exhaust gas can flow out to the internal space S downstream of the turbine impeller 8 via the bypass flow path 18. That is, part of the exhaust gas can bypass the turbine impeller 8 and the turbine scroll passage 15.
- the valve 16 is configured by a valve body having an outer diameter larger than the inner diameter of the outlet end 18a.
- the valve 16 closes the bypass flow path 18 by contacting a seat surface 18b formed around the outlet end 18a of the bypass flow path 18, and opens the bypass flow path 18 by separating from the seat surface 18b.
- the actuator rod 19 shown in FIG. 2B is arranged outside the turbine housing 4. One end of the actuator rod 19 is fixed to an actuator (not shown), and the actuator rod 19 is operated in the axial direction by the power of the actuator. The other end of the actuator rod 19 is fixed to a pin rod 21 (rod) protruding in a direction orthogonal to the axial direction of the actuator rod 19.
- the link plate 20 (link member) is constituted by a plate member and is provided outside the turbine housing 4.
- a link hole 20 a is formed at one end of the link plate 20.
- a pin rod 21 is rotatably inserted (supported) into the link hole 20a of the link plate 20. That is, the pin rod 21 is fixed to the actuator rod 19 and is rotatably supported by the link plate 20.
- the turbine housing 4 has a housing hole 4b.
- the housing hole 4 b penetrates between the outside of the turbine housing 4 (the actuator rod 19 side of the turbine housing 4) and the internal space S of the turbine housing 4.
- a bearing portion 22 is press-fitted into the housing hole 4b.
- the bearing portion 22 is composed of a cylindrical member.
- the bearing portion 22 has a bearing hole 22a that penetrates from one end to the other end.
- the shaft 23 is inserted through the bearing hole 22a.
- One end of the bearing portion 22 is a protruding portion 22 b that protrudes from the inner wall of the turbine housing 4 that forms the inner space S.
- the other end of the bearing portion 22 protrudes outside the turbine housing 4. That is, one end of the bearing portion 22 is located in the internal space S, and the other end of the bearing portion 22 is located outside the turbine housing 4.
- one end of the bearing portion 22 protrudes into the internal space S of the turbine housing 4 and the other end of the bearing portion 22 protrudes outside the turbine housing 4. That is, the bearing hole 22 a of the bearing portion 22 penetrates between the inside of the turbine housing 4 (internal space S) and the outside of the turbine housing 4.
- the shaft 23 is inserted into the bearing hole 22 a of the bearing portion 22 and is rotatably supported by the bearing portion 22.
- One end of the shaft 23 protrudes from the bearing portion 22 toward the internal space S of the turbine housing 4. That is, the shaft 23 is rotatably supported by the bearing hole 22a with one end thereof positioned in the internal space S. Further, the other end of the shaft 23 protrudes outside the turbine housing 4 from the turbine housing 4 and the bearing portion 22.
- the other end of the shaft 23 is welded to the link plate 20 while being inserted into the fixing hole 20 b of the link plate 20. If the link hole 20a is provided on one end side of the link plate 20, the fixing hole 20b is provided on the other end side (generally lower side in FIG. 2B) of the link plate 20.
- the mounting plate 24 as a mounting member is constituted by a plate member, and connects the valve 16 and the shaft 23.
- a valve 16 is provided on one end side of the mounting plate 24, and a shaft 23 is welded to the other end side of the mounting plate 24.
- the connection structure between the mounting plate 24 and the valve 16 and the connection structure between the mounting plate 24 and the shaft 23 will be described in detail later.
- the valve 16 is rotated together with the shaft 23 in the rotation direction of the shaft 23 by the mounting plate 24.
- the pin rod 21 is moved in the direction orthogonal to the axis of the pin rod 21 by the power of the actuator (the direction indicated by the arrows a and c in FIG. 2B), the operation of the link plate 20 (FIG. 2B).
- the shaft 23 and the valve 16 rotate together.
- the valve 16 opens and closes the outlet end 18 a of the bypass flow path 18.
- FIGS. 3A to 3C are diagrams for explaining the mounting plate 24.
- FIG. 3A is a perspective view of the mounting plate 24.
- FIG. 3B is a side view of the mounting plate 24.
- FIG. 3C is a top view of the mounting plate 24.
- the mounting plate 24 has a cylindrical base portion 24b.
- the base 24b is provided with an insertion hole 24c, and the shaft 23 is inserted into the insertion hole 24c.
- the extending part 24a is a part extending in the radial direction of the insertion hole 24c (shaft 23) from the base part 24b.
- the extending portion 24a and the base portion 24b are integrally formed.
- An exposed hole 24d is formed in the base 24b.
- the exposure hole 24d extends in the radial direction of the insertion hole 24c and penetrates the insertion hole 24c from the outside of the cylindrical portion 24b. When the shaft 23 is inserted into the insertion hole 24c, a part of the shaft 23 is exposed from the exposure hole 24d.
- a body hole 24e is provided in the extending portion 24a of the mounting plate 24.
- the body hole 24e penetrates the extending portion 24a in the left-right direction in FIG.
- the mounting plate 24 and the valve 16 are connected through the main body hole 24e.
- FIG. 4 (a) to 4 (c) are diagrams for explaining the mounting plate P according to the comparative example.
- 4A is a perspective view of the mounting plate P
- FIG. 4B is a side view of the mounting plate P
- FIG. 4C is a top view of the mounting plate P.
- the insertion direction of the shaft 23 in the insertion hole 24c is indicated by a double arrow.
- the insertion direction of the shaft 23 in the insertion hole Pc is indicated by a double arrow.
- the mounting plate P of the comparative example is smaller than the mounting plate 24 of the present embodiment. Yes. Specifically, a part of the base portion 24b and the extending portion 24a has a length in a direction indicated by a double-headed arrow in FIG. 3A, and the cylindrical portion Pb and the main body portion Pa of the comparative example in FIG. It is longer than the length in the direction indicated by the double arrow.
- the base 24b of the mounting plate 24 has an insertion hole of the cylindrical portion Pb of the mounting plate P in which the size of the insertion hole 24c in the radial direction is large. It is larger than the size of Pc in the radial direction.
- the base 24b is formed larger on the right side in FIG. 3B (in FIG. 4B) than the cylindrical portion Pb.
- FIG. 5 is a view for explaining the connection structure of the valve 16 to the mounting plate 24, and is a view of the mounting plate 24 as viewed from the side in a state where the mounting plate 24 and the valve 16 are connected.
- a protrusion 16 b is formed on the main body 16 a of the valve 16.
- the protrusion 16b protrudes in a direction perpendicular to the surface direction of the contact surface 16c from the opposite side of the contact surface 16c that contacts the sheet surface 18b.
- the protrusion 16b may be integrally formed with the main body 16a, or the protrusion 16b of another member may be fixed to the main body 16a by welding or the like.
- the protruding portion 16 b of the valve 16 is inserted into the main body hole 24 e and the washer 25 of the mounting plate 24. Thereafter, the mounting plate 24 and the valve 16 are connected by pressurizing and deforming the tip of the protruding portion 16 b protruding from the washer 25. That is, the extending portion 24 a of the mounting plate 24 holds the valve 16.
- FIG. 6 is a view for explaining the assembly of the valve 16 and the mounting plate 24 to the shaft 23.
- the bearing portion 22 is press-fitted into the housing hole 4 b of the turbine housing 4, and then the shaft 23 is inserted through the bearing portion 22. Further, after the valve 16 is caulked and connected to the mounting plate 24, the mounting plate 24 is fixed to one end side of the shaft 23 protruding from the bearing portion 22.
- the shaft 23 is inserted into the insertion hole 24c, and the outer peripheral surface 23a of the shaft 23 is exposed from the exposure hole 24d.
- the shaft 23 is fixed to the mounting plate 24 by welding the outer peripheral surface 23a exposed to the exposure hole 24d and the inner wall 24f of the exposure hole 24d.
- FIG. 7 is a perspective view of the turbine housing 4 in which the shaft 23, the valve 16, and the mounting plate 24 are assembled.
- a radial clearance S 1 (backlash) is formed between the shaft 23 and the insertion hole 22a of the bearing portion 22 so as not to hinder the rotational movement of the shaft 23, and the link A gap S 2 (backlash) in the axial direction of the shaft 23 is formed between the plate 20 and the bearing portion 22. Therefore, the shaft 23 may vibrate in the axial direction or the radial direction due to the influence of exhaust pulsation or the like, and noise may be generated. Therefore, the mounting plate 24 of the present embodiment has a structure for suppressing such vibration.
- the base 24b of the mounting plate 24 is larger on the right side in FIG. 3B than in the comparative example.
- the base 24 b is assembled to the shaft 23, and a part of the circumferential direction of the base 24 b (around the axis of the shaft 23) on the side of the exposure hole 24 d from the shaft 23. It protrudes in the radial direction of the shaft 23 from the bearing 22 over a range.
- the range on the side opposite to the exposure hole 24d is not enlarged in the radial direction in order to avoid interference with the turbine housing 4. Also good.
- the base 24b and the extended portion 24a extend longer in the direction of the double arrow (the axial direction of the shaft 23 shown in FIG. 7) in FIG. 3A than in the comparative example.
- the base 24b and the extension 24a are such that the end 24g opposite to the bearing 22 is closer to the axial direction of the shaft 23 than to the valve 16 (on the right side in FIG. 7). It protrudes.
- the wall surface (inner wall) of the turbine housing 4 is relatively spaced from the valve 16, so that a large gap is formed in the radial direction of the base portion 24b when viewed from the base portion 24b. Easy to be. Therefore, even if the base portion 24b is enlarged in the radial direction, it is easy to avoid interference with other members.
- the base portion 24b and the extending portion 24a are protruded to the right in FIG. 7 in the axial direction of the shaft 23 from the valve 16, thereby increasing the weight without changing the weight deviation in the rotational direction of the shaft 23. Can be made.
- one end of the shaft 23 on the mounting plate 24 side protrudes from the insertion hole 24 c of the mounting plate 24. Therefore, the weight of the shaft 23 is increased, and a further vibration suppressing effect is exhibited.
- the base portion 24b protrudes in the radial direction of the shaft 23 from the bearing portion 22 over a part of the circumferential direction on the exposure hole 24d side from the shaft 23, and the base portion 24b and A case has been described in which a part of the extending portion 24a protrudes to the right in FIG.
- at least the base portion 24b protrudes in the radial direction of the shaft 23 from the bearing portion 22 over a part of the circumferential direction of the base portion 24b on the exposure hole 24d side of the shaft 23, or the base portion 24b.
- Any one of the extending portions 24a may protrude from the valve 16 in the axial direction of the shaft 23 to the right in FIG.
- the base 24b and the extending portion 24a have the end 24g opposite to the bearing portion 22 side protruding in the axial direction of the shaft 23 from the valve 16 to the right in FIG.
- the base portion 24b and the extending portion 24a may protrude on the left side in FIG. 7 in the axial direction of the shaft 23 from the end portion on the bearing portion 22 side.
- the end portion on the bearing portion 22 side has a small gap with the turbine housing 4 and the end portion 24g side has a large gap with the turbine housing 4 in many cases.
- the degree of freedom of shape change is higher when the size is increased by projecting to the right side.
- the mounting plate 24 for operating the valve 16 that opens and closes the outlet end 18a of the bypass flow path 18 has been described.
- the mounting plate 24 for operating other valves may be applied. .
- a mounting plate for opening and closing a bypass passage provided in the compressor housing 6 and bypassing the intake passage may be used.
- an attachment for adjusting the flow rate of the exhaust gas flowing into one turbine scroll flow path and the exhaust gas flowing into the other turbine scroll flow path It may be a plate.
- a multi-stage supercharger in which a low-pressure stage and a high-pressure stage supercharger are connected in series to the engine exhaust manifold, or a parallel type in which multiple superchargers are connected in parallel to the engine exhaust manifold.
- the present invention may be applied to a link plate for adjusting the flow rate of exhaust gas flowing into the turbine housing of the supercharger.
- the part for increasing the size of the mounting plate 24 is not limited to the radial direction and the axial direction of the base portion 24b as in the above-described embodiment, and may be any other part of the mounting plate 24.
- the present invention can be used for a supercharger that includes a valve that opens and closes a flow path that opens in an internal space of a housing.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Supercharger (AREA)
Abstract
Description
Claims (5)
- 過給機であって、
内部空間が内部に形成されたハウジングと、
前記ハウジングに設けられ、前記ハウジングの前記内部空間と前記ハウジングの外部との間を貫通する軸受孔が形成された円筒状の軸受部と、
少なくとも一端が前記軸受部よりも前記ハウジングの内側に突出した状態で前記軸受孔に回転自在に支持されるシャフトと、
前記軸受部から突出する前記シャフトの一端側に固定された取付部材と、
前記取付部材を介して前記シャフトに連結され、前記シャフトの回転に伴って前記内部空間に開口する流路を開閉するバルブと、
を備え、
前記取付部材は、
前記シャフトが挿通される挿通孔が形成された基部、および、前記基部と一体成形され、前記基部から前記シャフトの径方向に延在して前記バルブを保持する延在部を含み、
前記基部は、少なくとも前記シャフトの軸周り方向の一部の範囲に亘り、前記軸受部よりも前記シャフトの径方向に突出していることを特徴とする過給機。 - 前記基部および前記延在部のいずれか一方または双方は、前記バルブよりも前記シャフトの軸方向に突出していることを特徴とする請求項1に記載の過給機。
- 過給機であって、
内部空間が内部に形成されたハウジングと、
前記ハウジングに設けられ、前記ハウジングの前記内部空間と前記ハウジングの外部との間を貫通する軸受孔が形成された円筒状の軸受部と、
少なくとも一端を前記軸受部よりも前記ハウジングの内側に突出した状態で前記軸受孔に回転自在に支持されたシャフトと、
前記軸受部から突出する前記シャフトの一端側に固定された取付部材と、
前記取付部材を介して前記シャフトに連結され、前記シャフトの回転に伴って前記内部空間に開口する流路を開閉するバルブと、
を備え、
前記取付部材は、
前記シャフトが挿通される挿通孔が形成された基部、および、前記基部と一体成形され、前記基部から前記シャフトの径方向に延在して前記バルブを保持する延在部を含み、
前記基部および前記延在部のいずれか一方または双方は、前記バルブよりも前記シャフトの軸方向に突出していることを特徴とする過給機。 - 前記基部および前記延在部のいずれか一方または双方は、前記シャフトの軸方向の両端部のうち、前記軸受部側と反対側の端部が、前記バルブよりも前記シャフトの軸方向に突出していることを特徴とする請求項2または3に記載の過給機。
- 前記シャフトの一端は、前記挿通孔から突出していることを特徴とする請求項1から4のいずれか1項に記載の過給機。
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JP2016527760A JP6390703B2 (ja) | 2014-06-11 | 2015-06-03 | 過給機 |
CN201580028869.XA CN106460643B (zh) | 2014-06-11 | 2015-06-03 | 增压器 |
DE112015002765.3T DE112015002765T5 (de) | 2014-06-11 | 2015-06-03 | Turbolader |
US15/362,313 US10526956B2 (en) | 2014-06-11 | 2016-11-28 | Turbocharger |
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US15/362,313 Continuation US10526956B2 (en) | 2014-06-11 | 2016-11-28 | Turbocharger |
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US (1) | US10526956B2 (ja) |
JP (1) | JP6390703B2 (ja) |
CN (1) | CN106460643B (ja) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018118896A1 (en) * | 2016-12-21 | 2018-06-28 | Borgwarner Inc. | Flap assembly for a turbine |
WO2020070980A1 (ja) * | 2018-10-05 | 2020-04-09 | 株式会社Ihi | 軸受構造 |
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JP2013015103A (ja) * | 2011-07-05 | 2013-01-24 | Ihi Corp | ウェイストゲートバルブ及び過給機 |
WO2013115206A1 (ja) * | 2012-01-31 | 2013-08-08 | 株式会社Ihi | 過給機 |
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US4730456A (en) * | 1983-12-16 | 1988-03-15 | Mazda Motor Corporation | Turbo-supercharger for an internal combustion engine |
JPH08334030A (ja) | 1995-06-06 | 1996-12-17 | Aisan Ind Co Ltd | ターボ・チャージャのウェイスト・ゲート・バルブ |
EP0904506B1 (en) * | 1996-06-13 | 2001-10-10 | Fisher Controls International, Inc. | Seat ring and rotary valve |
DE102009055865B4 (de) | 2009-11-26 | 2021-06-24 | Ihi Charging Systems International Gmbh | Verstelleinrichtung für eine Aufladeeinrichtung |
JP5799616B2 (ja) | 2011-07-05 | 2015-10-28 | 株式会社Ihi | ウェイストゲートバルブ及び過給機 |
JP5939052B2 (ja) * | 2012-06-26 | 2016-06-22 | 株式会社Ihi | 過給機 |
US9869238B2 (en) * | 2012-07-11 | 2018-01-16 | Borgwarner Inc. | Exhaust-gas turbocharger |
-
2015
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- 2015-06-03 DE DE112015002765.3T patent/DE112015002765T5/de active Pending
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- 2015-06-03 WO PCT/JP2015/066007 patent/WO2015190362A1/ja active Application Filing
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2016
- 2016-11-28 US US15/362,313 patent/US10526956B2/en active Active
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JPH0725248U (ja) * | 1993-10-01 | 1995-05-12 | 富士重工業株式会社 | 過給機付エンジン |
JP2013015103A (ja) * | 2011-07-05 | 2013-01-24 | Ihi Corp | ウェイストゲートバルブ及び過給機 |
WO2013115206A1 (ja) * | 2012-01-31 | 2013-08-08 | 株式会社Ihi | 過給機 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018118896A1 (en) * | 2016-12-21 | 2018-06-28 | Borgwarner Inc. | Flap assembly for a turbine |
WO2020070980A1 (ja) * | 2018-10-05 | 2020-04-09 | 株式会社Ihi | 軸受構造 |
US11434783B2 (en) | 2018-10-05 | 2022-09-06 | Ihi Corporation | Bearing structure including a rotation member with a plurality of extended portions and a bearing member having a plurality of main bodies each including a counterface surface facing one of the plurality of extended portions in an axial direction |
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CN106460643B (zh) | 2018-10-09 |
JP6390703B2 (ja) | 2018-09-19 |
JPWO2015190362A1 (ja) | 2017-04-20 |
US10526956B2 (en) | 2020-01-07 |
US20170074114A1 (en) | 2017-03-16 |
CN106460643A (zh) | 2017-02-22 |
DE112015002765T5 (de) | 2017-04-20 |
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