EP1867852B1 - Système d'admission de moteur - Google Patents

Système d'admission de moteur Download PDF

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Publication number
EP1867852B1
EP1867852B1 EP20070010979 EP07010979A EP1867852B1 EP 1867852 B1 EP1867852 B1 EP 1867852B1 EP 20070010979 EP20070010979 EP 20070010979 EP 07010979 A EP07010979 A EP 07010979A EP 1867852 B1 EP1867852 B1 EP 1867852B1
Authority
EP
European Patent Office
Prior art keywords
valve
hole
throttle
bypass
shaft
Prior art date
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.)
Expired - Fee Related
Application number
EP20070010979
Other languages
German (de)
English (en)
Other versions
EP1867852A2 (fr
EP1867852A3 (fr
Inventor
Hiroshige Akiyama
Hisashi Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keihin Corp
Original Assignee
Keihin Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Keihin Corp filed Critical Keihin Corp
Publication of EP1867852A2 publication Critical patent/EP1867852A2/fr
Publication of EP1867852A3 publication Critical patent/EP1867852A3/fr
Application granted granted Critical
Publication of EP1867852B1 publication Critical patent/EP1867852B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/105—Details of the valve housing having a throttle position sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/1055—Details of the valve housing having a fluid by-pass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/107—Manufacturing or mounting details

Definitions

  • the present invention relates to an engine intake system with the features of the preamble part of claim 1.
  • Document JP 09303164 A describes an intake device for an engine comprising a throttle body including an intake path, a throttle valve, a bypass bypassing the throttle valve, a bypass air flow control valve and a throttle sensor detecting a throttle valve opening.
  • An engine intake system comprising: a throttle body including an intake path and a shaft-receiving hole formed therein; a throttle valve supported at a valve shaft thereof in the shaft-receiving hole so as to open and close the intake path; a bypass bypassing the throttle valve and connected to the intake path; a bypass valve for regulating an opening degree of the bypass; an actuator for actuating the bypass valve; and a throttle sensor attached to a sidewall of the throttle body and detecting an opening degree of the throttle valve is already known as disclosed in Japanese Patent Application Laid-Open No. 2003-74444 .
  • a bypass valve for regulating an opening degree of a bypass and an actuator for the bypass valve are attached to a control block bonded to a throttle body. Therefore, it is possible to perform in parallel the assembling of the throttle body side and the assembling of the control block side. Also, the bypass valve provided in the control block is inevitably positioned far away from an outlet port of the bypass which is open in a downstream side of an intake path. Therefore, the conventional system has an advantage that it is difficult for engine blowback to reach the bypass valve.
  • the conventional system is not suitable for such a case of a motorcycle where a throttle body is placed in a small space around an engine.
  • the present invention has been achieved in view of the above circumstances, and has an object to provide an engine intake system which is small, in which it is difficult for engine blowback to reach a bypass valve, and a valve hole for fittingly receiving therein the bypass valve can be easily machined, and which has an excellent productivity.
  • an engine intake system with the features of claim 1.
  • the bypass valve is fittingly attached in the valve hole formed in the throttle body, and also the actuator for actuating the bypass valve is attached to the throttle body. Therefore, the throttle body with the bypass valve and the actuator can be downsized as a whole, and thus even in such a case of a motorcycle where a space around an engine is small, the throttle body can be easily placed therein.
  • valve hole for fittingly receiving therein the bypass valve is arranged on a side opposite from the outlet port with the throttle valve interposed therebetween, and thus a distance between the valve hole and the outlet port is secured to be large while arranging the valve hole at a high position. Therefore, even if the engine blowback enters the outlet port, the engine blowback does not easily reach the valve hole, thereby preventing moisture and carbon contained in the blowback gas from being frozen and adhering to prevent the bypass valve from being fixed to a position.
  • valve hole is positioned parallel with the shaft-receiving hole for supporting the shaft of the throttle valve, and thus the valve hole can be machined at a time together with the shaft-receiving hole, by a multi-shaft drilling machine, thereby improving the productivity.
  • valve hole is arranged above the axis of the intake path and the outlet port is arranged below the axis of the intake path, a distance in the vertical direction between the valve hole and the outlet port is further sufficiently secured, thereby effectively preventing the engine blowback from reaching the valve hole.
  • outlet hole is arranged parallel with the shaft-receiving hole as in the case of the valve hole, also the outlet port can be machined at a time together with the valve hole and the shaft-receiving hole, by a multi-shaft drilling machine, thereby further improving the productivity.
  • the inlet port is arranged so as to be open at an upper portion of an upstream-side end-surface of the throttle body.
  • the inlet port is open at the upper portion of the upstream-side end-surface of the throttle body to directly face the intake air flow, and thus the inlet port can smoothly receive thereinto the intake air, thereby contributing to stabilization of idling of the engine.
  • the actuator and a sensor box which holds the throttle sensor are attached to end surfaces of the throttle body, the end faces facing the same direction.
  • the sensor box and the actuator can be easily attached from the same direction to the throttle body without turning the throttle body, thereby improving the productivity.
  • FIGS. 1 to 4 show an intake system of the present invention which is mainly used for an engine of a two-wheeled motor vehicle.
  • the intake system includes a throttle body 1 to be mounted on the engine.
  • the throttle body 1 has an intake path 2 horizontally connected to an intake port (not shown) of the engine in a state in which the throttle body 1 is mounted on the engine.
  • the throttle body 1 has first and second shaft-receiving bosses 3 and 4 formed on its sidewalls which are horizontally opposed to each other so that the bosses 3 and 4 project outward from the sidewalls, respectively.
  • a valve shaft 7a of a butterfly-type throttle valve 7 for opening and closing the intake path 2 is rotatably supported in horizontal shaft-receiving holes 5 and 6 which are provided coaxially with the shaft-receiving bosses 3 and 4.
  • a throttle drum 8 is fixedly attached to one end of the valve shaft 7a projecting outward from the first shaft-receiving boss 3.
  • a return spring 9 for biasing the throttle drum 8 in a closing direction of the throttle valve 7 is mounted on the first shaft-receiving boss 3.
  • a sensor box 10 integrally including a coupler 14 is fixedly attached on an end surface of the second shaft-receiving boss 4 by a plurality of screws 35.
  • the sensor box 10 supports therein a throttle sensor 11, an intake-air temperature sensor 12, a boost negative-pressure sensor 13 and other components.
  • the throttle sensor 11 detects a turning angle of the valve shaft 7a as an opening degree of the throttle valve 7.
  • the intake-air temperature sensor 12 passes through a through hole 33 in the sidewall of the throttle body 1 to cause its tip end to face the intake path 2, and detects a temperature of intake air.
  • the boost negative-pressure sensor 13 detects a boost negative-pressure of the engine through a detection hole 34 (see FIG. 7 ) open in the intake path 2 at a position downstream of the throttle valve 7.
  • the throttle body 1 is provided with a bypass 15 which bypasses the throttle valve 7 and is connected to the intake path 2.
  • the bypass 15 comprises: an inlet port 15a (see FIG. 4 ) open in an upper part of an upstream-side end-surface of the throttle body 1, and extending along the intake path 2; a cylindrical valve hole 15b (see FIG. 5 ) rising from a downstream end of the inlet port 15a; a fixed measuring hole 15c (see FIG.
  • valve hole 15b having a diameter smaller than that of the valve hole 15b, orthogonal to an intermediate part of the valve hole 15b, and extending along the intake path 2; a lateral hole 15d rising from a downstream end of the fixed measuring hole 15c and open in the end surface of the second shaft-receiving boss 4; a groove-shaped intermediate curved path 15e (see FIG. 6 ) formed between joint surfaces of the second shaft-receiving boss 4 and the sensor box 10, and leading to the lateral hole 15d; and an outlet port 15f (see FIGS. 2 and 3 ) communicating with the downstream end of the intermediate curved path 15e, and open in the intake path 2 at a position downstream of the throttle valve 7.
  • the valve hole 15b and the fixed measuring hole 15c are formed by drilling in a valve body portion 16 which is integrally formed in the throttle body 1 and adjacent to the second shaft-receiving boss 4.
  • the valve hole 15b is bored by drilling from a first end surface 16a of the valve body portion 16 which is parallel with the end surface of the second shaft-receiving boss 4 such that the valve hole 15b is parallel with the shaft-receiving holes 5 and 6; and the fixed measuring hole 15c is bored by drilling from a second end surface 16b which is parallel with the upstream-side end-surface of the second shaft-receiving boss 4 such that the fixed measuring hole 15c extends across the valve hole 15b.
  • a machining hole 17 is formed in the second end surface 16a of the valve body portion 16 so as to be coaxial with the fixed measuring hole 15c.
  • the machining hole 17 is airtightly closed by a plug 18 which is press-fitted or screwed into the machining hole 17.
  • the first and second shaft-receiving holes 5 and 6, and the valve hole 15b which are parallel with one another are machined at a time by a multi-shaft drilling machine.
  • the valve hole 15b is arranged close to the second end surface 16b so that a length L1 of the machining hole 17 becomes sufficiently smaller than a length L2 of the fixed measuring hole 15c. With this arrangement, an amount of machining for the machining hole 17 is minimized to extend the durable life of the drill.
  • valve hole 15b is arranged on the side opposite from the outlet port 15f of the bypass 15 with the throttle valve 7 interposed therebetween, and at a position above the axis A of the intake path 2.
  • the outlet port 15f is arranged below the axis A of the intake path 2.
  • both the valve hole 15b and the outlet port 15f are arranged in parallel with the first and second bearing holes 5 and 6.
  • a hollow cylindrical bypass valve 20 is slidably fitted into the valve hole 15b.
  • the bypass valve 20 has, on its sidewall, a movable measuring hole 21 opposed to an upstream end of the fixed measuring hole 15c. Ascending and descending of the bypass valve 20 changes a communication area between the movable measuring hole 21 and the fixed measuring hole 15c, thereby regulating the opening degree of the bypass 15.
  • a rotation-preventing means 22 is provided between the bypass valve 20 and the valve body portion 16.
  • the rotation-preventing means 22 allows the bypass valve 20 to move up and down, while holding the movable measuring hole 21 at a position where it faces the fixed measuring hole 15c.
  • the rotation-preventing means 22 comprises a vertical key groove 24 provided in the other sidewall of the bypass valve 20 on the side opposite from the movable measuring hole 21, and a pin-shaped key 23 integrally projectingly provided at a central portion of an inner end surface of the plug 18.
  • a mounting hole 25 having a diameter larger than that of the valve hole 15b and coaxial with the valve hole 15b is provided in the valve body portion 16 so as to be open in the first end surface 16a.
  • a stepping motor 27 is mounted in the mounting hole 25 so as to serve as an actuator for opening and closing the bypass valve 20 such that its output shaft 27b projects toward the bypass valve 20.
  • a synthetic resin covering member 28 is mold-coupled to a metallic stator 27a of the stepping motor 27 so as to cover both inner and outer end surfaces and an outer peripheral surface of the stator 27a.
  • a mounting flange 28a protruding from an outer peripheral surface of the covering member 28, and a power-supply coupler 31 for the stepping motor 27 projecting from an outer end surface of the mounting flange 28a.
  • the outer peripheral surface of the covering member 28 is fitted to the inner peripheral surface of the mounting hole 25, and a plate-shaped seal member 29 including a lip 29a which closely contacts the outer peripheral surface of the output shaft 27b is interposed between the inner end surface of the covering member 28 and the bottom surface of the mounting hole 25.
  • the mounting flange 28a is fixedly attached on the first end surface 16a of the valve body portion 16 by a plurality of screws 36. At this time, no seal member is interposed between the mounting flange 28a and the first end surface 16a.
  • valve body portion 16 and the second shaft-receiving boss 4 are close to each other, and their end surfaces face in the same direction.
  • the stepping motor 27 and the sensor box 10 are easily mounted on these end surfaces without changing the orientation of the throttle body 1, thereby contributing to an improvement in efficiency of assembling operation.
  • the output shaft 27b of the stepping motor 27 is screwed into a female screw member 30 attached to the central portion of the bypass valve 20.
  • the normal rotation and reverse rotation of the output shaft 27b ascend and descend (open and close) the bypass valve 20.
  • An electronic control unit 32 for controlling power supply to the stepping motor 27 is connected to a terminal in the coupler 31. Detection signals are input to the electronic control unit 32 from the throttle sensor 11, the intake-air temperature sensor 12, the boost negative-pressure sensor 13 and the other components. In accordance with these signals, the electronic control unit 32 controls the operation of the stepping motor 27, and further controls the operation of a fuel injection valve of the engine not shown.
  • the stepping motor 27 is operated by the control unit 32 in the direction to pull down the bypass valve 20 to reduce the communication area with the fixed measuring hole 15c and the movable measuring hole 21. Therefore, the amount of intake air is decreased and the engine enters a normal idling state.
  • the bypass valve 20 moving up and down as described above is prevented from turning by engagement between the vertical key groove 24 provided in its sidewall and the key 23 fixed on the valve body portion 16. Therefore, it is possible to maintain an appropriate opposed-position relationship between the movable measuring hole 21 of the bypass valve 20 and the fixed measuring hole 15c of the throttle body 1, thereby stabilizing the regulation of the intake air amount.
  • the key 23 is integrally formed with the plug 18 for closing the machining hole 17 which is used for drilling the fixed measuring hole 15c in the valve body portion 16.
  • the key 23 is integrally formed with the plug 18 for closing the machining hole 17 which is used for drilling the fixed measuring hole 15c in the valve body portion 16.
  • the plug 18 has the key 23, there is no need to mount a special key on the valve body portion 16. Accordingly, the number of parts and assembling steps are reduced, thereby reducing the cost.
  • valve body portion 16 forming the valve hole 15b is integrally formed on the throttle body 1, in other words, because the valve hole 15b is bored in the throttle body 1, and because the stepping motor 27 for operating the bypass valve 20 fitted into the valve hole 15b is also mounted on the valve body portion 16, that is, the throttle body 1, it is possible to further reduce the number of parts and assembling steps, and effectively downsizing the entire throttle body 1 equipped with the bypass valve 20 and the stepping motor 27. Therefore, even in such a case of a motorcycle.where a space around an engine is small, the throttle body can be easily placed therein.
  • valve hole 15b, mounting hole 25 and outlet port 15f are arranged in parallel with the first and second shaft-receiving holes 5, 6 of the valve shaft 7a. Therefore, the valve hole 15b, mounting hole 25 and outlet port 15f can be machined at a time by the multi-shaft drilling machine together with the first and second shaft-receiving holes 5, 6, thereby further reducing the number of assembling steps.
  • valve hole 15b is arranged on the side opposite from the outlet port 15f of the bypass 15 with the throttle valve 7 interposed therebetween, and at a position above the axis A of the intake path 2; whereas the outlet port 15f is arranged below the axis A of the intake path 2. Therefore, the distance between the valve hole 15b and the outlet port 15f is secured to be large while arranging the valve hole 15b at a high position. Thus, even if the blowback gas enters the outlet port 15f upon engine blowback, the blowback gas does not easily reach the valve hole 15b, thereby preventing moisture and carbon contained in the blowback gas from being frozen and adhering to the bypass valve 20 to prevent the bypass valve 20 from being fixed to a position.
  • the fuel does not flow into the bypass 15 unlike a carburetor including a bypass, and thus no foreign-material cleaning-action by the fuel occurs around the valve hole 15b. Therefore, it is very important to prevent foreign materials from entering the valve hole 15b.
  • the inlet port 15a of the bypass 15 is open in the upper portion of the upstream-side end-surface of the throttle body 1 to directly face the intake air flow, and thus the inlet port 15a smoothly receives thereinto the intake air, thereby contributing to stabilization of idling of the engine.
  • the synthetic resin covering member 28 is mold-coupled to the stator 27a of the stepping motor 27 so as to cover both the inner and outer end surfaces and the outer peripheral surface of the stator 27a; and the seal member 29 which closely contacts the outer peripheral surface of the output shaft 27b is interposed between the inner end surface of the covering member 28 and the bottom surface of the mounting hole 25, thereby configuring the stepping motor 27 into a waterproof type to prevent rust development on the outer surface of the stator 27a due to water invasion.
  • the mounting flange 28a for mounting the stepping motor 27 on the valve body portion 16 is integrally formed on the covering member 28. Therefore, any special lid for holding the stepping motor 27 is no longer required, thereby further reducing the numbers of parts and assembling steps to further reduce the cost.
  • the power-supply coupler 31 for supplying power to the stepping motor 27 is provided in the covering member 28 such that the coupler 31 projects outward from the mounting flange 28a.
  • the mounting flange 28a is used for mounting of not only the stepping motor 27 but also the coupler 31, thereby further reducing the numbers of parts and assembling steps.
  • the present invention is not limited to the above- described embodiment, and various changes in design can be made without departing from the subject matter of the present invention.
  • the flange 28a may be replaced by a holding plate which is a member separate from the covering member 28.
  • An engine intake system includes: a bypass (15) bypassing a throttle valve (7) and connected to an intake path (2); and a bypass valve (20) for regulating an opening degree of the bypass (15).
  • a part of the bypass (15) includes: an inlet port (15a) provided in a throttle body (1) so that the inlet port (15a) is open in the intake path (2) at a position upstream of the throttle valve (7); a valve hole (15b) provided in the throttle body (1) so as to fittingly receive therein the bypass valve (20); and an outlet port (15f) provided in the throttle body (1) so that the outlet port (15f) is open in the intake path (2) at a position downstream of the throttle valve (7).
  • the valve hole (15b) is arranged on a side opposite from the outlet port (15f) with the throttle valve (7) interposed therebetween, and at a position above the outlet port (15f) and parallel with the shaft-receiving hole (5, 6) supporting a valve shaft (7a) of the throttle valve (7).

Claims (3)

  1. Système d'admission pour moteur thermique comprenant :
    un corps de papillon des gaz (1) comprenant un passage d'admission horizontal (2) et un orifice de réception d'arbre (5, 6) formé en lui ;
    un papillon des gaz (7) supporté par un arbre de papillon (7a) de celui-ci situé dans l'orifice de réception d'arbre (5, 6) de manière à ouvrir et à fermer le passage d'admission (2) ;
    un passage de dérivation (15) mettant en dérivation le papillon des gaz (7) et relié au passage d'admission (2) ;
    une soupape de dérivation (20) destinée à réguler un degré d'ouverture du passage de dérivation (15) ; et
    un dispositif de commande (27) destiné à commander la soupape de dérivation (20) ;
    dans lequel au moins une partie du passage de dérivation (15) comprend :
    un orifice d'entrée (15a) agencé dans le corps de papillon des gaz (1) de manière à ce que l'orifice d'entrée (15a) s'ouvre dans le passage d'admission (2) dans une position située en amont du papillon des gaz (7) ; un orifice de soupape (15b) agencé dans le corps de papillon des gaz (1) de manière à ce qu'il reçoive de façon ajustée la soupape de dérivation (20) ; et un orifice de sortie (15f) agencé dans le corps de papillon des gaz (1) de manière à ce que l'orifice de sortie (15f) s'ouvre dans le passage d'admission (2) dans une position située en aval du papillon des gaz (7) ; et dans lequel,
    l'orifice de soupape (15b) est agencé sur un côté opposé à l'orifice de sortie (15f), le papillon des gaz (7) étant disposé entre eux, l'orifice de soupape (15b) est agencé au-dessus d'un axe (A) du passage d'admission (2), dans une position située au-dessus de l'orifice de sortie (15f) et parallèle à l'orifice de réception d'arbre (5, 6) ; et dans lequel,
    l'orifice de sortie (15f) est agencé parallèlement à l'orifice de réception d'arbre (5, 6) ;
    caractérisé en ce que :
    un capteur de papillon des gaz (11) est fixé sur une paroi latérale du corps de papillon des gaz (1) et détecte un degré d'ouverture du papillon des gaz (7) ; et
    l'orifice de sortie (15f) est agencé en dessous de l'axe (A).
  2. Système d'admission pour moteur thermique selon la revendication 1, caractérisé en ce que l'orifice d'entrée (15a) est agencé de manière à s'ouvrir sur une partie supérieure d'une surface d'extrémité du côté amont du corps de papillon des gaz (1).
  3. Système d'admission pour moteur thermique selon la revendication 1 ou 2, caractérisé en ce que le dispositif de commande (27) et un boîtier de capteur (10) qui retient le capteur de papillon des gaz (11) sont fixés sur des surfaces d'extrémité du corps de papillon des gaz (1), les faces d'extrémité étant dirigées dans la même direction.
EP20070010979 2006-06-13 2007-06-04 Système d'admission de moteur Expired - Fee Related EP1867852B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006163721A JP4690950B2 (ja) 2006-06-13 2006-06-13 エンジン用吸気装置

Publications (3)

Publication Number Publication Date
EP1867852A2 EP1867852A2 (fr) 2007-12-19
EP1867852A3 EP1867852A3 (fr) 2008-04-09
EP1867852B1 true EP1867852B1 (fr) 2009-07-29

Family

ID=38658713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070010979 Expired - Fee Related EP1867852B1 (fr) 2006-06-13 2007-06-04 Système d'admission de moteur

Country Status (4)

Country Link
EP (1) EP1867852B1 (fr)
JP (1) JP4690950B2 (fr)
BR (1) BRPI0702765B1 (fr)
DE (1) DE602007001726D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2975258B1 (fr) 2013-03-14 2018-05-30 Keihin Corporation Ensemble corps de papillon des gaz auquel est attaché un dispositif de commande de dérivation
US9857802B2 (en) 2014-05-30 2018-01-02 Continental Controls Corporation Gaseous fuel control device for engines
JP6963516B2 (ja) * 2018-01-26 2021-11-10 株式会社ミクニ スロットル装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934444A (ja) * 1982-08-20 1984-02-24 Mitsubishi Electric Corp 機関制御用弁装置
JPH07269377A (ja) * 1994-03-31 1995-10-17 Mikuni Corp 吸入空気制御装置
JP3436455B2 (ja) * 1996-05-15 2003-08-11 株式会社日立製作所 エンジンのスロットルボディ
JP3361739B2 (ja) * 1998-01-14 2003-01-07 株式会社日立ユニシアオートモティブ アイドルスピード制御弁
JP3784679B2 (ja) 2001-08-31 2006-06-14 株式会社ケーヒン バイパス吸気量制御装置
JP2003013753A (ja) * 2002-06-10 2003-01-15 Hitachi Ltd エンジンのスロットルボディ
JP2005018718A (ja) 2003-06-24 2005-01-20 Junichi Hayashi 医療情報システム、情報仲介装置および情報処理装置
JP4217139B2 (ja) * 2003-10-03 2009-01-28 株式会社ケーヒン バイパス吸気量制御装置
JP4414322B2 (ja) * 2004-10-26 2010-02-10 株式会社ケーヒン 燃料噴射装置における吸気制御装置

Also Published As

Publication number Publication date
EP1867852A2 (fr) 2007-12-19
JP4690950B2 (ja) 2011-06-01
JP2007332829A (ja) 2007-12-27
EP1867852A3 (fr) 2008-04-09
BRPI0702765B1 (pt) 2018-07-03
BRPI0702765A (pt) 2008-02-19
DE602007001726D1 (de) 2009-09-10

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