EP0477471B1 - Vorrichtung zum dosierten Einspeisen flüchtiger Kraftstoffbestandteile in das Ansaugrohr einer Brennkraftmaschine - Google Patents

Vorrichtung zum dosierten Einspeisen flüchtiger Kraftstoffbestandteile in das Ansaugrohr einer Brennkraftmaschine Download PDF

Info

Publication number
EP0477471B1
EP0477471B1 EP91109578A EP91109578A EP0477471B1 EP 0477471 B1 EP0477471 B1 EP 0477471B1 EP 91109578 A EP91109578 A EP 91109578A EP 91109578 A EP91109578 A EP 91109578A EP 0477471 B1 EP0477471 B1 EP 0477471B1
Authority
EP
European Patent Office
Prior art keywords
valve
actuating
arrangement comprises
actuating arrangement
internal combustion
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 - Lifetime
Application number
EP91109578A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0477471A1 (de
Inventor
Andreas Sausner
Sebastian Zabeck
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0477471A1 publication Critical patent/EP0477471A1/de
Application granted granted Critical
Publication of EP0477471B1 publication Critical patent/EP0477471B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold

Definitions

  • the invention relates to a device for the temporary storage and metered feeding of the volatile fuel components located in the free space of a tank system into the intake pipe of an internal combustion engine with a throttle valve which is fixed non-rotatably on an actuating shaft and can be rotated relative to the intake pipe, comprising a ventilation line connecting the free space with the atmosphere.
  • a storage chamber with an absorption element is arranged and a line connecting the storage chamber to the intake pipe, which line can be closed by a valve downstream of the storage chamber, the valve and the throttle valve being assigned drive means for transferring to an open position, and the drive means of the valve and the throttle valve are operated together by a common actuating device.
  • Such a device is known from DE-OS 36 24 441. It describes a diagnostic procedure for checking actuators in internal combustion engines.
  • the actuators are the idle speed control and the tank ventilation, with more or less air being supplied via a corresponding control of the idle speed control and the tank ventilation valve in order to determine and evaluate speed changes of the internal combustion engine.
  • the tank ventilation valve is actuated via a control unit, which is designed, for example, as a microcomputer, while the throttle valve can also be operated via a control unit with the interposition of an idle controller. Both the control unit for the tank ventilation valve and the idle controller are connected to a diagnostic block in a signal-conducting manner and receive part of their input signals from this. It should be noted, however, that the previously known diagnostic procedure is complicated and complex, which is unsatisfactory both economically and in terms of trouble-free operation over a long period of use.
  • valve and the throttle valve can be actuated independently of one another, the throttle valve being actuated mechanically and the valve being actuated using electronic and electromechanical means. These means are connected to one another in a signal-conducting manner and to sensors which continuously record various characteristics of the internal combustion engine during operation. The construction and assembly of such a device are accordingly complex.
  • the object of the invention is to further develop such a device in such a way that a simplified structure and a simplified assembly result.
  • the actuating device is mechanical and that the drive means of the valve and the throttle valve are mechanically coupled. While ensuring good operating behavior of the internal combustion engine, this allows proper feeding of volatile fuel components into the intake pipe without requiring any special effort in terms of the manufacture and assembly of the required parts. As a result, the device can also be used in the production of inexpensive motor vehicles.
  • the design of the device depends largely on the design of the drive means of the valve and the throttle valve.
  • the throttle valve is non-rotatably fixed on an actuating shaft and can be set to the desired extent by a relative rotation of the actuating shaft.
  • the joint actuation of such a valve and such a throttle valve therefore requires the use of actuating means which are suitable for converting a reciprocating movement into a rotary movement.
  • a large number of mechanical aids are known in this regard.
  • the actuator of the valve By using a spindle drive, it is possible to arrange the actuator of the valve on an axis of movement which forms an extension of the axis of rotation of the throttle valve shaft.
  • the manufacture is special simple and there is the further advantage that the housing of the valve can be attached in the immediate vicinity of the intake pipe and, if necessary, as an integral part of the same.
  • the actuating device is designed as a cam drive
  • a cam is expediently fastened interchangeably, which makes it possible to make an otherwise identically designed device usable for internal combustion engines of different sizes by simply exchanging the cam.
  • the actuating device can comprise a rack and pinion drive, which makes it possible to bridge large spatial distances between the throttle valve shaft and the actuator of the valve.
  • a similar advantage results in an embodiment in which the actuating device is formed by a connecting rod drive. In the latter case, the manufacturing costs are comparatively lower, but it is necessary to generate a static preload, for example by means of a compression spring, in order to suppress unwanted play.
  • Bowden cables enable the valve to be decoupled from the throttle valve shaft in terms of vibrations. This improves durability.
  • the use of cam drives is also possible.
  • the auxiliary drive of the valve can comprise a spring element in order to compensate for play of the actuating means used.
  • the spring is expediently designed as a compression spring and arranged in such a way that, when the load is released, it causes the actuator of the valve to be brought into a closed position.
  • an even more sensitive control characteristic of the valve can be achieved if an auxiliary valve is connected upstream in the direction of the absorption element, the auxiliary valve being actuatable by an electrical signal and connected to a control unit in a signal-conducting manner.
  • operating characteristic data of the internal combustion engine that is continuously detected with the aid of sensors can be processed in such a way that the output signal brings about an optimized control of the valve.
  • the extent of the environmental pollution caused by its operation can be reduced to an optimal extent.
  • the control device should be provided with at least one sensor for the continuous detection of characteristic data of the internal combustion engine and with a matching device for Continuous optimization of the signal depending on the values of the characteristic data determined.
  • the drive device of the valve can be provided with a device for relatively delayed opening and for throttle valve-synchronous closing.
  • a device for relatively delayed opening and for throttle valve-synchronous closing can be formed, for example, by an asymmetrical fluid damper.
  • Corresponding fluid dampers are known per se. They are used in the field of wheel suspension in motor vehicles. In the present application, they cause a delayed opening of the valve and a synchronous closing, based on the relative movement of the throttle valve.
  • the sketch shows a device for temporarily storing and feeding the volatile fuel components located in the free space 5 of a tank system into the intake pipe 6 of an internal combustion engine.
  • a vent line 7 connecting the free space 5 to the atmosphere is provided, in which a storage chamber 8 with an absorption element made of activated carbon is arranged, and a line 7 connecting the storage chamber with the intake pipe 6, which line can be closed by a valve 1, the valve 1 and the throttle valve 3 drive means 4 are assigned for common transfer to the open position.
  • They comprise a rack and pinion drive which is assigned to the throttle valve shaft 14 and a cam plate which is assigned to the actuator 15.
  • the rack and pinion drive consists of a gearwheel which is fixed non-rotatably on the throttle valve shaft 14 and a toothed rack 16 which is in engagement with the gearwheel.
  • the rack 16 is mounted in a guide 18 and can only be moved in the guide 18 in the horizontal direction. In the central area, it carries a cam disk 17, which is in engagement with the actuator 15 of the valve 1.
  • the accelerator pedal In the illustrated position of the device, the accelerator pedal is in its uppermost position, the throttle valve is closed, and so is the valve 1.
  • the valve 1 In the area of the fuel tank, vapors are released from its upper area 5 via line 2 through absorption element 8 and line 7 led outside. The fuel components are absorbed within the absorption element 8 and thereby prevented from escaping outdoors.
  • the accelerator pedal When driving operation is started, the accelerator pedal is actuated and the toothed rack 16 is moved to the left within the plane of the drawing. The result is a transfer of the throttle valve 3 into an open position and a relief of the actuator 15 of the valve 1 upwards.
  • the negative pressure in the intake pipe 6 is transmitted to the control chamber 13 through the line 20. It lies directly on the underside of the control membrane 12 and is modified by the presence of the compression spring 10 and the spring 11 in such a way that an optimal opening movement of the valve 1 results.

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)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Lift Valve (AREA)
EP91109578A 1990-08-30 1991-06-11 Vorrichtung zum dosierten Einspeisen flüchtiger Kraftstoffbestandteile in das Ansaugrohr einer Brennkraftmaschine Expired - Lifetime EP0477471B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4027397 1990-08-30
DE4027397A DE4027397C1 (enExample) 1990-08-30 1990-08-30

Publications (2)

Publication Number Publication Date
EP0477471A1 EP0477471A1 (de) 1992-04-01
EP0477471B1 true EP0477471B1 (de) 1993-08-11

Family

ID=6413205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109578A Expired - Lifetime EP0477471B1 (de) 1990-08-30 1991-06-11 Vorrichtung zum dosierten Einspeisen flüchtiger Kraftstoffbestandteile in das Ansaugrohr einer Brennkraftmaschine

Country Status (5)

Country Link
US (1) US5259354A (enExample)
EP (1) EP0477471B1 (enExample)
JP (1) JP2501684B2 (enExample)
DE (2) DE4027397C1 (enExample)
ES (1) ES2043412T3 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4229110C1 (de) * 1992-09-01 1993-10-07 Freudenberg Carl Fa Vorrichtung zum vorübergehenden Speichern und dosierten Einspeisen von im Freiraum einer Tankanlage befindlichen flüchtigen Kraftstoffbestandteilen in das Ansaugrohr einer Verbrennungskraftmaschine
US5413082A (en) * 1994-01-19 1995-05-09 Siemens Electric Limited Canister purge system having improved purge valve
DE19533863A1 (de) * 1995-09-13 1997-03-20 Bayerische Motoren Werke Ag Brennstoffversorgungsanlage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624441A1 (de) * 1986-07-19 1988-01-28 Bosch Gmbh Robert Diagnoseverfahren zur quantitativen ueberpruefung von stellgliedern bei brennkraftmaschinen

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1899038A (en) * 1928-11-09 1933-02-28 Junkers Hugo Method of and apparatus for regulating the fuel supply to internal combustion engines
US2396618A (en) * 1938-07-01 1946-03-12 Stieglitz Albert Arrangement for controlling the power of internal-combustion engines
US3456635A (en) * 1965-05-03 1969-07-22 Universal Oil Prod Co Means for preventing hydrocarbon losses from an engine carburetor system
US3391679A (en) * 1966-03-28 1968-07-09 Int Harvester Co Engine fuel vapor recovery system
US3554175A (en) * 1969-12-08 1971-01-12 Chrysler Corp Evaporative emission control system
JPS50102733A (enExample) * 1974-01-25 1975-08-14
JPS5244334A (en) * 1975-10-07 1977-04-07 Toyota Motor Corp Throttle valve control device with a evapo-system
JPS5334014A (en) * 1976-09-10 1978-03-30 Toyota Motor Corp Fuel steam inlet device for automobile engine
JPS54144516A (en) * 1978-05-01 1979-11-10 Mazda Motor Corp Evaporated fuel processing device for engine
JPS599746B2 (ja) * 1978-05-16 1984-03-05 愛三工業株式会社 気化器のエアベント切換機構
US4326489A (en) * 1979-12-27 1982-04-27 Ford Motor Company Proportional flow fuel vapor purge control device
JPS56154154A (en) * 1980-04-30 1981-11-28 Suzuki Motor Co Ltd Purge flow rate regulator for evaporated gas recovering apparatus
JPS57172828A (en) * 1981-04-15 1982-10-23 Nissan Motor Co Ltd Acceleration controller for car equipped with constant-speed travelling apparatus
JPS5851235A (ja) * 1981-09-18 1983-03-25 Toyota Motor Corp デイ−ゼルエンジンに於ける吸気絞り弁の制御装置
JPS599746A (ja) * 1982-07-09 1984-01-19 Canon Inc カ−ソル移動用キ−スイツチ
JPS59213941A (ja) * 1983-05-19 1984-12-03 Fuji Heavy Ind Ltd 燃料蒸発ガス排出抑止装置
JPS603957A (ja) * 1983-06-19 1985-01-10 Masami Michihiro 連続遠心鋳造装置
JPS61151064U (enExample) * 1985-03-12 1986-09-18
GB8526953D0 (en) * 1985-11-01 1985-12-04 Veeder Root Ltd Speed control actuator
DE3802664C1 (enExample) * 1988-01-29 1988-10-13 Fa. Carl Freudenberg, 6940 Weinheim, De

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624441A1 (de) * 1986-07-19 1988-01-28 Bosch Gmbh Robert Diagnoseverfahren zur quantitativen ueberpruefung von stellgliedern bei brennkraftmaschinen

Also Published As

Publication number Publication date
DE4027397C1 (enExample) 1991-08-14
ES2043412T3 (es) 1993-12-16
JPH04234554A (ja) 1992-08-24
EP0477471A1 (de) 1992-04-01
DE59100281D1 (de) 1993-09-16
JP2501684B2 (ja) 1996-05-29
US5259354A (en) 1993-11-09

Similar Documents

Publication Publication Date Title
DE4345558B4 (de) Elektrisch gesteuerte Drosselklappenvorrichtung
DE3228393C2 (enExample)
DE4243893C2 (de) Vorrichtung zum Steuern einer Drosselklappe einer Brennkraftmaschine
DE69132899T2 (de) Steuerungssystem zur Steuerung des Ausgangsdrehmoments einer Brennkraftmaschine
DE4329522A1 (de) Drosseleinrichtung
EP0020860A1 (de) Einrichtung zum Begrenzen der Fahrgeschwindigkeit eines Kraftfahrzeuges
DE3609849C1 (de) Einrichtung zur Regulierung einer Brennkraftmaschine in einem Kraftfahrzeug
DE4412735C2 (de) Drosselventilsteuerungssystem
EP0484656B1 (de) Vorrichtung zum dosierten Einspeisen von verbrannten Gasen in den Brennraum einer Verbrennungskraftmaschine
DE3905797A1 (de) Luftzufuhrdrosselkoerper
DE3146652C1 (de) Einrichtung zur Stellung einer Klappe
DE4202406C1 (en) IC engine air intake control with two intake ducts - has each duct with throttle flap, one for medium and top load, and second for idling
EP0477471B1 (de) Vorrichtung zum dosierten Einspeisen flüchtiger Kraftstoffbestandteile in das Ansaugrohr einer Brennkraftmaschine
DE3131553C2 (de) Verbindungseinrichtung zwischen einem Leistungssteuerglied einer Brennkraftmaschine, insbesondere für Kraftfahrzeuge, und einem Betätigungsglied
DE3800876A1 (de) Leistungssteller fuer eine brennkraftmaschine
DE3323563C1 (de) Kraftfahrzeug mit einer Steuereinrichtung zur Brennkraftmaschinen-Drehzahl- und Geschwindigkeitsbegrenzung
DE19512916C2 (de) Drosselklappenvorrichtung
DE3622260C2 (de) Kraftfahrzeug-Antriebsaggregat mit einer Brennkraftmaschine
DE3809910C2 (de) Vorrichtung zur Leistungsbeeinflussung von Brennkraftmaschinen
DE60100768T2 (de) Abgasrückführvorrichtung für eine Brennkraftmaschine
EP0306641A1 (de) Elektrisch ansteuerbare Stellvorrichtung zum Verstellen der Drosselklappe einer Brenngemischdrosseleinrichtung von Brennnkraftmaschinen
DE10126471A1 (de) Antriebseinrichtung
EP0523432A2 (de) Stellvorrichtung für eine Drosselklappe einer Brennkraftmaschine
DE3046425A1 (de) Vergaser fuer brennkraftmaschinen
DE4331700A1 (de) Steueranordnung des Betriebsgrades eines Drosselventils für eine Verbrennungskraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920121

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 19920612

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59100281

Country of ref document: DE

Date of ref document: 19930916

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930819

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2043412

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ITTA It: last paid annual fee
RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: FIRMA CARL FREUDENBERG

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 91109578.4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980526

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980604

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19980612

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980622

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980629

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19990119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19990612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990630

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990611

EUG Se: european patent has lapsed

Ref document number: 91109578.4

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050611