EP2387659B1 - Drosselklappeneinrichtung - Google Patents

Drosselklappeneinrichtung Download PDF

Info

Publication number: EP2387659B1
Authority: EP; European Patent Office
Prior art keywords: valve; chamber; outlet; bypass; throttle flap
Prior art date: 2009-01-13
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.): Not-in-force

Application number

EP09768047.4A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2387659A1 (de

Inventor

Achim Meisiek

Wolfgang Schulz

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.)

Robert Bosch GmbH

Original Assignee

Robert Bosch GmbH

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.)

2009-01-13

Filing date

2009-12-08

Publication date

2016-10-19

2009-12-08 Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH

2011-11-23 Publication of EP2387659A1 publication Critical patent/EP2387659A1/de

2016-10-19 Application granted granted Critical

2016-10-19 Publication of EP2387659B1 publication Critical patent/EP2387659B1/de

Status Not-in-force legal-status Critical Current

2029-12-08 Anticipated expiration legal-status Critical

Links

Images

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
- F02D9/1055—Details of the valve housing having a fluid by-pass

Definitions

the invention relates to a throttle valve device according to the preamble of the main claim.
a throttle device comprising a arranged in a passage throttle and a throttle bypass passage comprising a bypass chamber which is connected via a chamber inlet to the passage upstream of the throttle valve and a chamber outlet to the passage downstream of the throttle valve, and with an idling actuator at least partially accommodated in the bypass chamber for controlling the bypass current.
the stepping motor is inserted through a chamber opening in the bypass chamber and has an axially adjustable valve member which cooperates with a valve seat formed at the bottom of the bypass chamber.
the chamber opening is tightly closed after installation of the stepper motor.
the throttle valve device with the characterizing features of the main claim has the advantage that the manufacturing costs are reduced by the idler actuator is designed as a separate valve having a valve inlet, a valve outlet, seen in the flow direction between the valve inlet and the valve outlet valve seat and a having the valve seat cooperating valve body, wherein the valve outlet protrudes into the chamber outlet and the valve inlet opens into the bypass chamber.
valve outlet of the idling actuator closes the chamber outlet of the bypass chamber in such a way that the bypass flow can only reach the chamber outlet of the bypass chamber via the valve outlet of the idling actuator, since the valve inlet and the valve outlet automatically do so without further connecting means, for example hoses are integrated into the bypass channel and bypassing the idle actuator is possible in the bypass channel.
the valve inlet and the valve outlet are arranged on the same side of the valve body.
the idling actuator is inserted into the bypass chamber and seals it to the outside, since the idler actuator designed as a stepping motor can be easily replaced in this way by the idler actuator designed as a valve without further adjustments.
the idle actuator is a solenoid valve, which is driven, for example clocked.
the drawing shows in section a simplified throttle device for throttling the intake air of an internal combustion engine.
the throttle valve device has a throttle valve 2 arranged in a through-channel 1 and a bypass channel 3 bypassing the throttle flap 2.
the bypass channel 3 comprises a bypass chamber 4, which is connected via a chamber inlet 5 with the passage 1 upstream of the throttle valve 2 and a chamber outlet 6 with the passage 1 downstream of the throttle valve 2.
the bypass chamber 4 is designed as a recess in the housing of the throttle valve device.
an idle actuator 9 is at least partially included for controlling the bypass current.
the idle actuator 9 is used to adjust the idle speed of an internal combustion engine 10, the is arranged downstream of the throttle valve device. From upstream of the throttle valve device, air is sucked in from the environment, for example via a suction filter 11.
the idling actuator 9 is designed as a separate valve, which has a valve inlet 9.1, a valve outlet 9.2, seen in the flow direction between the valve inlet 9.1 and the valve outlet 9.2 arranged valve seat 9.3 and a valve seat with the valve 9.3 9.4, wherein the valve outlet 9.2 extends into the bypass chamber 4 into the chamber outlet 6 and the valve inlet 9.1 opens directly into the bypass chamber 4.
the valve outlet 9.2 of the idling actuator 9 closes the chamber outlet 6 of the bypass chamber 4 in such a way that the bypass flow can pass essentially only via the valve outlet 9.2 of the idling actuator 9 into the chamber outlet 6 of the bypass chamber 4.
a bypass of the idle actuator 9 via the chamber inlet 5 in the bypass chamber 4 and from there directly into the chamber outlet 6 is permitted at most for a small, not affecting the function leakage current.
the valve outlet 9.2 at its chamber outlet 6 end facing an insertion bevel 13.
the bypass chamber 4 can also taper at its chamber outlet 6 having bottom 14 tapered to the chamber outlet 6 out.
a sealing means may be provided between the chamber outlet 6 and the valve outlet 9.2, a sealing means may be provided.
the invention makes it possible in a simple manner to replace an expensive idling actuator designed as a stepping motor with a more cost-effective idler actuator designed as a separate valve. By mounting the separate valve to the throttle device space and connecting hoses or pipes are saved.
the idling actuator 9 is inserted with the valve outlet 9.2 through a chamber opening 12 in the bypass chamber 4 and closes it tight with the remaining outside of the bypass chamber 4 housing.
the valve inlet 9.1 and the valve outlet 9.2 are automatically integrated into the bypass channel without further connecting means.
the idler actuator 9 is held in the bypass chamber 4 cohesively, positively and / or non-positively, for example by screwing, latching, welding, gluing or pressing.
a press fit between the nozzle-shaped valve outlet 9.2 and the chamber outlet 6 may be provided, which also provides the necessary Tightness achieved.
the nozzle-shaped valve outlet 9.2 may be formed as a thin-walled, elastic tube, so that lateral accelerations can be better absorbed in the assembled state.
the idling actuator 9 is a solenoid valve, which is operated, for example clocked and normally closed.
valve inlet 9.1 and the valve outlet 9.2 are arranged according to the embodiment on the same side of the valve, wherein the valve outlet 9.2 is designed as a nozzle and the valve inlet 9.1 is formed by annularly arranged around the valve outlet 9.2 openings.
the idling actuator 9 may have a protruding into the bypass chamber 4, radially outside of the valve inlet 9.1 and the valve outlet 9.2 arranged shoulder 15 for easier insertion of the Leerlaufstellers 9 in the bypass chamber 4.
the diameter of the shoulder 15 corresponds approximately to the diameter of the bypass chamber 4.
a sealing means 16 for example a so-called O-ring or a molded sealing lip, is provided.
the idler plate 9 is centered by the sealing means 16 or the shoulder 15 at a first location and by the protruding into the chamber outlet 6 nozzle portion 9.2 at a second location and held for example by press fitting.

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)

EP09768047.4A 2009-01-13 2009-12-08 Drosselklappeneinrichtung Not-in-force EP2387659B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE200910000166 DE102009000166A1 (de)	2009-01-13	2009-01-13	Drosselklappeneinrichtung
PCT/EP2009/066598 WO2010081595A1 (de)	2009-01-13	2009-12-08	Drosselklappeneinrichtung

Publications (2)

Publication Number	Publication Date
EP2387659A1 EP2387659A1 (de)	2011-11-23
EP2387659B1 true EP2387659B1 (de)	2016-10-19

Family

ID=41623090

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP09768047.4A Not-in-force EP2387659B1 (de)	2009-01-13	2009-12-08	Drosselklappeneinrichtung

Country Status (4)

Country	Link
EP (1)	EP2387659B1 (zh)
CN (1)	CN102272429B (zh)
DE (1)	DE102009000166A1 (zh)
WO (1)	WO2010081595A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014175870A1 (en) *	2013-04-24	2014-10-30	International Engine Intellectual Property Company, Llc	Throttle valve having a pressure relief valve
WO2018163912A1 (ja) *	2017-03-10	2018-09-13	本田技研工業株式会社	内燃機関の吸気構造

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3925362A1 (de) *	1989-08-01	1991-02-07	Vdo Schindling	Elektromagnetisches stellglied
US5722367A (en) *	1995-10-10	1998-03-03	Walbro Corporation	Engine idle speed air control
GB2362942B (en) *	1997-07-25	2002-02-06	Denso Corp	Flow control valve
JP4523520B2 (ja) *	2005-08-23	2010-08-11	株式会社ケーヒン	スロットルボデーにおけるエアバイパス制御装置

2009
- 2009-01-13 DE DE200910000166 patent/DE102009000166A1/de not_active Withdrawn
- 2009-12-08 EP EP09768047.4A patent/EP2387659B1/de not_active Not-in-force
- 2009-12-08 WO PCT/EP2009/066598 patent/WO2010081595A1/de active Application Filing
- 2009-12-08 CN CN200980154394.3A patent/CN102272429B/zh not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CN102272429B (zh)	2013-12-18
CN102272429A (zh)	2011-12-07
WO2010081595A1 (de)	2010-07-22
EP2387659A1 (de)	2011-11-23
DE102009000166A1 (de)	2010-07-15

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