EP1367243A3 - Intake apparatus for internal-combustion engine - Google Patents

Intake apparatus for internal-combustion engine Download PDF

Info

Publication number
EP1367243A3
EP1367243A3 EP03012447A EP03012447A EP1367243A3 EP 1367243 A3 EP1367243 A3 EP 1367243A3 EP 03012447 A EP03012447 A EP 03012447A EP 03012447 A EP03012447 A EP 03012447A EP 1367243 A3 EP1367243 A3 EP 1367243A3
Authority
EP
European Patent Office
Prior art keywords
intake air
measuring portion
enlarged
intake
internal
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.)
Granted
Application number
EP03012447A
Other languages
German (de)
French (fr)
Other versions
EP1367243A2 (en
EP1367243B1 (en
Inventor
Shinji Kawai
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry Co Ltd
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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Publication of EP1367243A2 publication Critical patent/EP1367243A2/en
Publication of EP1367243A3 publication Critical patent/EP1367243A3/en
Application granted granted Critical
Publication of EP1367243B1 publication Critical patent/EP1367243B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

An intake apparatus (1) wherein no excessive stress-induced strain occurs in an intake air measuring portion of a throttle body (2) and hence accurate intake air control can be performed when the amount of intake air is small is provided. An air duct hose-side engagement portion (9) and an intake manifold-side engagement portion (6) of the throttle body are provided with enlarged-diameter portions (C,A), respectively, which have an inner diameter larger than the inner diameter of the intake air measuring portion. The enlarged-diameter portions have a wall thickness (c) smaller than the wall thickness (b) of the measuring portion. Accordingly, strain is absorbed by the enlarged-diameter portions and cannot reach the measuring portion. Therefore, no excessive stress-induced strain occurs in the measuring portion, and accurate intake air control can be performed when the amount of intake air is small.
EP20030012447 2002-05-30 2003-05-30 Intake apparatus for internal-combustion engine Expired - Fee Related EP1367243B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002195258 2002-05-30
JP2002195258A JP3935926B2 (en) 2002-05-30 2002-05-30 Intake device for internal combustion engine

Publications (3)

Publication Number Publication Date
EP1367243A2 EP1367243A2 (en) 2003-12-03
EP1367243A3 true EP1367243A3 (en) 2006-06-07
EP1367243B1 EP1367243B1 (en) 2011-04-13

Family

ID=29417288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030012447 Expired - Fee Related EP1367243B1 (en) 2002-05-30 2003-05-30 Intake apparatus for internal-combustion engine

Country Status (3)

Country Link
EP (1) EP1367243B1 (en)
JP (1) JP3935926B2 (en)
DE (1) DE60336694D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7716828B2 (en) * 2004-05-31 2010-05-18 Aisan Kogyo Kabushiki Kaisha Method of manufacturing throttle body, and throttle body
JP4707613B2 (en) * 2006-06-13 2011-06-22 ダイハツ工業株式会社 Intake device for vehicle internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05187276A (en) * 1992-01-14 1993-07-27 Hitachi Ltd Throttle valve device of internal combustion engine
US5275375A (en) * 1992-06-17 1994-01-04 Solex Rotary throttle member and a throttle body for an internal combustion engine
JPH1026033A (en) * 1996-07-08 1998-01-27 Denso Corp Throttle valve device
JP2001234759A (en) * 2000-02-22 2001-08-31 Mikuni Corp Shaft supporting structure for throttle body
JP2002004895A (en) * 2000-06-21 2002-01-09 Mikuni Corp Throttle body
WO2002014721A1 (en) * 2000-08-16 2002-02-21 Visteon Global Technologies, Inc. Rotatable airflow control mechanism and method of manufacturing
US6352241B1 (en) * 1998-11-26 2002-03-05 Mannesmann Vdo Ag Butterfly valve body

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05187276A (en) * 1992-01-14 1993-07-27 Hitachi Ltd Throttle valve device of internal combustion engine
US5275375A (en) * 1992-06-17 1994-01-04 Solex Rotary throttle member and a throttle body for an internal combustion engine
JPH1026033A (en) * 1996-07-08 1998-01-27 Denso Corp Throttle valve device
US6352241B1 (en) * 1998-11-26 2002-03-05 Mannesmann Vdo Ag Butterfly valve body
JP2001234759A (en) * 2000-02-22 2001-08-31 Mikuni Corp Shaft supporting structure for throttle body
JP2002004895A (en) * 2000-06-21 2002-01-09 Mikuni Corp Throttle body
WO2002014721A1 (en) * 2000-08-16 2002-02-21 Visteon Global Technologies, Inc. Rotatable airflow control mechanism and method of manufacturing

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 612 (M - 1509) 11 November 1993 (1993-11-11) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25 12 April 2001 (2001-04-12) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 05 3 May 2002 (2002-05-03) *

Also Published As

Publication number Publication date
JP3935926B2 (en) 2007-06-27
JP2003343289A (en) 2003-12-03
DE60336694D1 (en) 2011-05-26
EP1367243A2 (en) 2003-12-03
EP1367243B1 (en) 2011-04-13

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