WO2010018650A1 - 排気ガス循環バルブ装置 - Google Patents
排気ガス循環バルブ装置 Download PDFInfo
- Publication number
- WO2010018650A1 WO2010018650A1 PCT/JP2009/002896 JP2009002896W WO2010018650A1 WO 2010018650 A1 WO2010018650 A1 WO 2010018650A1 JP 2009002896 W JP2009002896 W JP 2009002896W WO 2010018650 A1 WO2010018650 A1 WO 2010018650A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exhaust gas
- valve shaft
- valve
- seal member
- bearing
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/69—Lift valves, e.g. poppet valves having two or more valve-closing members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/71—Multi-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
Definitions
- the present invention for example, provides a seal member in the exhaust gas passage to suppress leakage of exhaust gas, foreign matter, moisture, etc. from the gap between the valve shaft and the bearing to the sliding portion of the valve shaft and the actuator portion that drives the valve shaft.
- the present invention relates to an exhaust gas circulation valve device.
- an exhaust gas passage is formed in a housing, and a valve for opening and closing the exhaust gas passage is provided.
- This valve is supported by a valve shaft, and this valve shaft is supported by a bearing provided in the housing.
- An actuator is attached to the housing, and the actuator includes an actuator shaft positioned on the axial extension line of the valve shaft and a driver that moves the actuator shaft forward and backward in the axial direction.
- the driving body is actuated to move the actuator shaft in the axial direction, the valve shaft is moved by pushing the valve shaft, and the opening of the exhaust gas passage is adjusted to adjust the exhaust gas amount.
- exhaust gas, foreign matter, moisture, etc. enter the sliding part of the valve shaft and the actuator part that drives the valve shaft from the gap between the valve shaft and the bearing, and the sliding performance of the valve shaft is reduced.
- a seal member that can be moved and deformed within a predetermined range is disposed on a sliding support portion of the valve shaft.
- the present invention improves the ease of assembly of the seal member to the housing, and by applying this seal member, exhaust gas, foreign matter, moisture, etc. slide through the gap between the valve shaft and the bearing without being affected by the exhaust pressure. It is an object of the present invention to provide an exhaust gas circulation valve device capable of reliably suppressing leakage to a portion and an actuator portion that drives a valve shaft.
- a seal member held by a plug is provided between the housing on the exhaust gas passage side of the bearing and the valve shaft.
- the seal member held by the plug is provided between the housing on the exhaust gas passage side of the bearing and the valve shaft, the sealing performance between the valve shaft and the bearing portion can be dramatically improved. it can. Further, the seal member can be assembled at a position with a different assembly diameter by improving only the outer diameter of the plug while improving the assembly property with respect to the housing.
- FIG. 1 is a longitudinal sectional front view showing a part of an exhaust gas circulation valve device according to Embodiment 1 of the present invention
- FIG. 2 is a longitudinal sectional view of a seal member. 1 and 2
- the housing 1 includes one exhaust gas inlet 3 and two exhaust gas outlets 2 and 4, and a valve is provided in a passage connecting the exhaust gas inlet 3 and the two exhaust gas outlets 2 and 4. Seals 5 and 6 are provided.
- the valve shaft 7 is supported via the bearing 8 so as to be movable in the axial direction at the inner central portion of the housing 1. Further, the lower end of the valve shaft 7 is movably supported by a steady member 9 provided at the end of the housing 1, and a lid 10 is provided on the end surface of the housing 1 so as to cover the outer surface of the steady member 9. Is provided. The lid body 10 bulges outside in order to ensure the movement range of the valve shaft 7.
- valve shaft 7 In the middle of the valve shaft 7, two valve shafts 11 and 12 are attached corresponding to the valve seals 5 and 6.
- a spring seat 13 is attached to the upper end of the valve shaft 7, and a biasing member 14 such as a coil spring provided by compression is provided between the spring seat 13 and the housing 1. .
- the valve shaft 7 is always urged by the urging force of the urging member 14 in a direction in which the valve shafts 11 and 12 abut against the valve seals 5 and 6.
- a seal member 15 is provided between the housing 1 on the exhaust gas passage side of the bearing 8 and the valve shaft 7, and a filter 16 is provided on the exhaust gas passage side of the seal member 15.
- the seal member 15 is formed, for example, by forming a metal spring material 15a bent into a U-shaped section into a ring shape, and excluding the U-shaped opening surface side of the metal spring material 15a.
- the outer surface of the spring material 15a is covered with an elastic resin 15b, and a plug 15c is provided on the outer surface of the elastic resin 15b.
- the filter 16 has a hole through which the valve shaft 7 penetrates in the center in a cup-shaped holder 16 a having an outward flange at the upper end and a through hole in the valve shaft 7 at the bottom center.
- a bar-shaped wire mesh 16b is stored and held.
- the wire mesh 16b before storage is longer than the depth of the cup-shaped holder 16a, and is pressed into the cup-shaped holder 16a by the plate 17 during storage.
- the wire mesh 16b is deformed so as to reduce the hole and comes into contact with the surface of the valve shaft 7 with high accuracy.
- the actuator 20 is attached to the housing 1.
- the actuator 20 incorporates an actuator shaft 21 positioned on the extension line of the valve shaft 7 and a drive body (not shown) that moves the actuator shaft 21 back and forth in the axial direction.
- the assembly process will be described. First, after inserting the cup-shaped holder 16a, the wire mesh 16b, and the plate 17 into the bearing holding portion 1a in the housing 1 from the atmosphere side, the seal member 15 is press-fitted, and further the bearing 8 is inserted. The fixing plate 18 is inserted into the bearing holding portion 1a to fix the whole. Next, after two valve shafts 11 and 12 are attached and fixed to the valve shaft 7 with the same interval as the valve seals 5 and 6, the valve shaft 7 is inserted into the housing 1 from below and the valve shaft The upper end is passed through the center holes of the filter 16, the plate 17, the seal member 15, the bearing 8, and the fixing plate 18.
- the spring seat 13 is attached and fixed to the upper end of the penetrating valve shaft 7 in a state where the biasing member 14 is compressed.
- the steady member 9 is fitted to the lower end of the valve shaft 7, and the lid 10 is attached to the end surface of the housing 1 so as to cover the outer surface of the steady member 9.
- valve shaft 7 slides due to the exhaust gas, foreign matter, moisture, etc. entering the sliding portion of the valve shaft 7 and the actuator 20 driving the valve shafts 11 and 12 from the gap between the valve shaft 7 and the bearing 8. It is possible to reliably prevent the deterioration of the performance and the operation performance of the actuator 20.
- the filter 16, the seal member 15, and the bearing 8 are installed in this order from the exhaust gas passage side, they are attached to the surface of the valve shaft 7 when the valve shaft 7 moves in the axial direction, that is, when the valve shafts 11 and 12 are opened and closed. Soot in the exhaust gas can be scraped off by the filter 16. As a result, it is possible to prevent the valve shaft 7 whose outer diameter has become larger due to adhesion of the soot from entering the seal member 15 and sticking to open the valve.
- the filter 16 presses and deforms a bar-shaped wire mesh 16b larger than the cup-shaped holder 16a with the plate 17 and is stored and held in the cup-shaped holder 16a. Therefore, the filter 16 comes into contact with the surface of the valve shaft 7 with high accuracy. The wrinkles adhering to the surface can be surely scraped and removed, and the above-described effect can be realized more reliably.
- FIG. 5 is an enlarged longitudinal sectional view showing the vicinity of a bearing according to Embodiment 2 of the present invention.
- the seal member 15 is integrated with the bearing 8.
- the bearing 8 also functions as the plug 15c.
- the seal member 15 held by the plug 15c is described as being applied to an exhaust gas circulation valve device that is provided in an exhaust gas passage from the engine to control the flow of exhaust gas. 15 can be similarly applied to a valve device having another configuration for controlling the gas flow.
- the exhaust gas circulation valve device improves the ease of assembly of the seal member to the housing, and the exhaust gas is exhausted from the gap between the valve shaft and the bearing by applying this seal member without being influenced by the exhaust pressure.
- the sealing member held by the above is provided, it is suitable for use in an exhaust gas circulation valve device or the like that suppresses leakage of exhaust gas or the like to the above portion.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
この発明は、シール部材のハウジングに対する組み付け性を向上させ、このシール部材を適用して排気圧力に左右されることなく弁軸と軸受けの隙間から排気ガスや異物、水分等が弁軸の摺動部分や、弁軸を駆動するアクチュエータ部分に漏洩するのを確実に抑制することのできる排気ガス循環バルブ装置を提供することを目的とする。
実施の形態1.
図1はこの発明の実施の形態1による排気ガス循環バルブ装置を示す一部を切り欠いた縦断正面図、図2はシール部材の縦断面図である。図1,図2において、ハウジング1は1つの排気ガス流入口3と2つの排気ガス流出口2、4を備え、排気ガス流入口3と2つの排気ガス流出口2、4を繋ぐ通路に弁シール5,6を備えている。
まず、ハウジング1内の軸受け保持部1a内に大気側からカップ状ホルダ16a、金網16b、プレート17を挿入した後、シール部材15を圧入し、さらに軸受け8を挿入し、最後に軸受け8の上面から軸受け保持部1a内に固定板18を挿入して全体を固定する。ついで、弁シール5,6と同じ間隔をあけて弁軸7に2枚の弁軸11,12を取り付け固定した後、この弁軸7を下方からハウジング1内に挿入して該弁軸7の上端部をフィルタ16、プレート17、シール部材15、軸受け8、固定板18の各中心穴に貫通させる。そして、貫通した弁軸7の上端にバネ受け座13を付勢部材14を圧縮した状態で取り付け固定する。そして、弁軸7の下端部に振れ止め部材9を嵌め、この振れ止め部材9の外面を覆うようにハウジング1の端面に蓋体10を取り付ける。
図5はこの発明の実施の形態2を示す軸受け付近を示す拡大縦断面図である。この実施の形態2はシール部材15を軸受け8と一体化したもので、この場合、軸受け8がプラグ15cの機能を兼用する。このように、シール部材15を軸受け8と一体化することにより、部品点数が少なくなり、ハウジング1に対する組み立て性がより向上する。
Claims (5)
- 内部に排気ガス通路が形成されたハウジングと、前記ハウジング内に軸受けを介して軸線方向に移動自在に支持された弁軸と、前記排気ガス通路を開閉するように前記弁軸に取り付けられた弁体と、前記弁軸を閉弁方向に付勢する付勢部材と、前記ハウジングに取り付けられ、前記弁軸を開弁方向に駆動するアクチュエータ軸を有するアクチュエータとを備えた排気ガス循環バルブ装置において、前記軸受けより排気ガス通路側の前記ハウジングと前記弁軸との間にプラグで保持されたシール部材を設けたことを特徴とする排気ガス循環バルブ装置。
- シール部材より排気ガス通路側に弁軸表面の付着物除去のフィルタを設けたことを特徴とする請求項1記載の排気ガス循環バルブ装置。
- 排気ガス通路側から見てハウジング内にフィルタ、シール部材、軸受けの順、又はフィルタ、軸受け、シール部材の順に設けたことを特徴とする請求項2記載の排気ガス循環バルブ装置。
- フィルタとシール部材との間に該フィルタを軸線方向に圧縮するプレートを設けたことを特徴とする請求項2記載の排気ガス循環バルブ装置。
- 軸受けとシール部材を一体化したことを特徴とする請求項1記載の排気ガス循環バルブ装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009001400T DE112009001400B4 (de) | 2008-08-13 | 2009-06-24 | Abgasrezirkulationsventilvorrichtung |
CN2009801234028A CN102066733B (zh) | 2008-08-13 | 2009-06-24 | 废气循环阀装置 |
US12/992,669 US20110094481A1 (en) | 2008-08-13 | 2009-06-24 | Exhaust gas recirculation valve device |
KR1020107026189A KR101233477B1 (ko) | 2008-08-13 | 2009-06-24 | 배기 가스 순환 밸브 장치 |
JP2010524657A JP4879353B2 (ja) | 2008-08-13 | 2009-06-24 | 排気ガス循環バルブ装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-208485 | 2008-08-13 | ||
JP2008208485 | 2008-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010018650A1 true WO2010018650A1 (ja) | 2010-02-18 |
Family
ID=41668804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/002896 WO2010018650A1 (ja) | 2008-08-13 | 2009-06-24 | 排気ガス循環バルブ装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110094481A1 (ja) |
JP (1) | JP4879353B2 (ja) |
KR (1) | KR101233477B1 (ja) |
CN (1) | CN102066733B (ja) |
DE (1) | DE112009001400B4 (ja) |
WO (1) | WO2010018650A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012210468A1 (de) | 2011-06-22 | 2012-12-27 | Aisan Kogyo Kabushiki Kaisha | AGR Ventil |
WO2014010017A1 (ja) * | 2012-07-09 | 2014-01-16 | 三菱電機株式会社 | 流体制御用バルブ |
WO2014054118A1 (ja) * | 2012-10-02 | 2014-04-10 | 三菱電機株式会社 | バルブ |
JP2016006304A (ja) * | 2014-06-20 | 2016-01-14 | 株式会社デンソー | 排気制御弁 |
WO2016067464A1 (ja) * | 2014-10-31 | 2016-05-06 | 三菱電機株式会社 | 流体制御バルブ |
WO2018097024A1 (ja) | 2016-11-24 | 2018-05-31 | 株式会社ダイヤメット | 焼結軸受 |
JPWO2017098622A1 (ja) * | 2015-12-10 | 2018-06-21 | 三菱電機株式会社 | バルブ装置 |
JP2018096473A (ja) * | 2016-12-14 | 2018-06-21 | 株式会社フジキン | 制御弁 |
WO2019043884A1 (ja) * | 2017-08-31 | 2019-03-07 | 三菱電機株式会社 | アクチュエータ |
JP2021110279A (ja) * | 2020-01-09 | 2021-08-02 | 愛三工業株式会社 | Egrバルブ装置 |
US11353063B2 (en) | 2018-05-23 | 2022-06-07 | Diamet Corporation | Sintered bearing |
Families Citing this family (8)
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US9260843B2 (en) | 2012-06-22 | 2016-02-16 | Kohler Mira Limited | Valve disinfecting method |
KR101237942B1 (ko) * | 2012-09-28 | 2013-02-28 | 캄텍주식회사 | 차량용 egr 밸브 |
JP6091364B2 (ja) * | 2013-07-09 | 2017-03-08 | 三菱電機株式会社 | 排気ガス再循環バルブ |
DE102017110320B4 (de) * | 2017-05-12 | 2018-12-20 | Pierburg Gmbh | Abgasventil für eine Verbrennungskraftmaschine |
GB2568271B (en) | 2017-11-09 | 2020-04-22 | Kohler Mira Ltd | A plumbing component for controlling the mixture of two supplies of water |
DE102017127793A1 (de) * | 2017-11-24 | 2019-05-29 | Pierburg Gmbh | Abgasventil für eine Verbrennungskraftmaschine |
DE102018109904B3 (de) * | 2018-04-25 | 2019-10-02 | Pierburg Gmbh | Abgasventil für eine Verbrennungskraftmaschine |
US11346450B2 (en) * | 2020-01-08 | 2022-05-31 | Automatic Switch Company | Poppet valve with simultaneously contacting valve members |
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2009
- 2009-06-24 DE DE112009001400T patent/DE112009001400B4/de active Active
- 2009-06-24 JP JP2010524657A patent/JP4879353B2/ja active Active
- 2009-06-24 US US12/992,669 patent/US20110094481A1/en not_active Abandoned
- 2009-06-24 KR KR1020107026189A patent/KR101233477B1/ko active IP Right Grant
- 2009-06-24 CN CN2009801234028A patent/CN102066733B/zh active Active
- 2009-06-24 WO PCT/JP2009/002896 patent/WO2010018650A1/ja active Application Filing
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JPH08177853A (ja) * | 1994-12-26 | 1996-07-12 | Nok Corp | 軸受およびその軸受を用いた流体制御バルブ |
JP2001193846A (ja) * | 2000-01-06 | 2001-07-17 | Smc Corp | 2ポート弁 |
JP2005120932A (ja) * | 2003-10-17 | 2005-05-12 | Mitsubishi Electric Corp | バルブ及び排気ガス再循環制御用バルブ又はバルブの組立て方法 |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012210468A1 (de) | 2011-06-22 | 2012-12-27 | Aisan Kogyo Kabushiki Kaisha | AGR Ventil |
US8967125B2 (en) | 2011-06-22 | 2015-03-03 | Aisan Kogyo Kabushiki Kaisha | EGR valve |
WO2014010017A1 (ja) * | 2012-07-09 | 2014-01-16 | 三菱電機株式会社 | 流体制御用バルブ |
JP5619327B2 (ja) * | 2012-07-09 | 2014-11-05 | 三菱電機株式会社 | 流体制御用バルブ |
WO2014054118A1 (ja) * | 2012-10-02 | 2014-04-10 | 三菱電機株式会社 | バルブ |
JP5875694B2 (ja) * | 2012-10-02 | 2016-03-02 | 三菱電機株式会社 | バルブ |
JP2016006304A (ja) * | 2014-06-20 | 2016-01-14 | 株式会社デンソー | 排気制御弁 |
JP6062129B2 (ja) * | 2014-10-31 | 2017-01-18 | 三菱電機株式会社 | 流体制御バルブ |
WO2016067464A1 (ja) * | 2014-10-31 | 2016-05-06 | 三菱電機株式会社 | 流体制御バルブ |
CN107076336A (zh) * | 2014-10-31 | 2017-08-18 | 三菱电机株式会社 | 流体控制阀 |
US10371264B2 (en) | 2014-10-31 | 2019-08-06 | Mitsubishi Electric Corporation | Fluid control valve |
JPWO2017098622A1 (ja) * | 2015-12-10 | 2018-06-21 | 三菱電機株式会社 | バルブ装置 |
WO2018097024A1 (ja) | 2016-11-24 | 2018-05-31 | 株式会社ダイヤメット | 焼結軸受 |
US10654104B2 (en) | 2016-11-24 | 2020-05-19 | Diamet Corporation | Sintered bearing |
JP2018096473A (ja) * | 2016-12-14 | 2018-06-21 | 株式会社フジキン | 制御弁 |
WO2019043884A1 (ja) * | 2017-08-31 | 2019-03-07 | 三菱電機株式会社 | アクチュエータ |
JPWO2019043884A1 (ja) * | 2017-08-31 | 2019-12-12 | 三菱電機株式会社 | アクチュエータ |
US11353063B2 (en) | 2018-05-23 | 2022-06-07 | Diamet Corporation | Sintered bearing |
JP2021110279A (ja) * | 2020-01-09 | 2021-08-02 | 愛三工業株式会社 | Egrバルブ装置 |
Also Published As
Publication number | Publication date |
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DE112009001400B4 (de) | 2013-03-07 |
DE112009001400T5 (de) | 2011-04-28 |
CN102066733A (zh) | 2011-05-18 |
JPWO2010018650A1 (ja) | 2012-01-26 |
KR101233477B1 (ko) | 2013-02-14 |
JP4879353B2 (ja) | 2012-02-22 |
CN102066733B (zh) | 2013-05-29 |
KR20100136555A (ko) | 2010-12-28 |
US20110094481A1 (en) | 2011-04-28 |
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