[go: up one dir, main page]

EP0205759B1 - Carburateur pour moteur à combustion interne - Google Patents

Carburateur pour moteur à combustion interne Download PDF

Info

Publication number
EP0205759B1
EP0205759B1 EP86103114A EP86103114A EP0205759B1 EP 0205759 B1 EP0205759 B1 EP 0205759B1 EP 86103114 A EP86103114 A EP 86103114A EP 86103114 A EP86103114 A EP 86103114A EP 0205759 B1 EP0205759 B1 EP 0205759B1
Authority
EP
European Patent Office
Prior art keywords
valve
carburettor
chamber
slide
channel
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
Application number
EP86103114A
Other languages
German (de)
English (en)
Other versions
EP0205759A2 (fr
EP0205759A3 (en
Inventor
Günter Dipl.-Ing. Härtel
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.)
Pierburg GmbH
Original Assignee
Pierburg 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.)
Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP0205759A2 publication Critical patent/EP0205759A2/fr
Publication of EP0205759A3 publication Critical patent/EP0205759A3/de
Application granted granted Critical
Publication of EP0205759B1 publication Critical patent/EP0205759B1/fr
Expired 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
    • F02M5/00—Float-controlled apparatus for maintaining a constant fuel level
    • F02M5/08—Float-controlled apparatus for maintaining a constant fuel level having means for venting float chambers

Definitions

  • the invention relates to a carburetor for internal combustion engines according to the preamble of claim 1.
  • Such a carburetor is described in DE-A-25 34 685 and there has a device for switching the float chamber, which is dependent on the fuel supply pressure, for switching the float chamber from outside to inside ventilation, the inside ventilation being achieved through a channel connected to the intake duct of the carburetor.
  • the device known from the cited publication is therefore not readily transferable to the carburetor equipped with a float chamber ventilated via two channels, since no means for controlling a plurality of channels are shown.
  • the object of the invention is therefore to equip a generic carburetor with a device which enables the combination of both measures.
  • a faultless hot run and hot start operation with effective limitation of the evaporation emission has become possible by the invention, so that the environmental impact can be reduced.
  • a carburetor 1 shows a carburetor 1, the intake duct 2 for air of which has a throttle valve 3, a Venturi section 4 with a pre-atomizer 5 for the introduction of the fuel and an air valve 6.
  • the intake duct 2 continues in a section 7 of a filter chamber of an air filter, not shown.
  • the carburetor 1 has further systems which are not shown. Upstream of the venturi section 4, a channel 8 opens into the suction channel section 9 there and a further channel 10 into the suction channel section 7 of the filter chamber.
  • Fig. 2 shows an outbreak of the carburetor 1, from which the arrangement of a slide rod 11 in a housing bore 12 can be seen.
  • the slide rod 11 is connected to a membrane 13 which separates a ventilated chamber 15 in a gas space 14 above the fuel level of a float chamber opposite a cover chamber 16, the cover chamber 16 being connected via a connecting line 17 to the fuel supply line 18 leading into the float chamber and with the pressure prevailing in this supply line 18 is applied.
  • the pressure drops in the fuel supply line 18, which generally has a return connection 28 to the fuel tank, so that the spring 19 moves the slide rod 11 into the first end position (FIG. 3).
  • the slide rod 11 closes the channels 8, 10 connected to the sections 7, 9 of the intake channel 2 and opens the channel 27 leading into the atmosphere or to the activated carbon trap 26, so that the gas space 14 of the float chamber via the channels 24 and the chamber 22 formed by reducing the diameter of the slide rod is connected to the channel 27 connected to the atmosphere and through this to the activated carbon trap 26.
  • the activated carbon trap 26 has further connections for the regeneration of the activated carbon, which are not described, however, since there is no direct connection with the invention.
  • the membrane 13 is to be replaced by an electromagnet excited during motor operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (3)

1. Carburateur pour moteurs à combustion interne équipé d'un dispositif qui, réagissant lors de la mise en marche du moteur à combustion interne, est destiné à faire passer la cuve à niveau constant de la ventilation extérieure à celle intérieure, la ventilation intérieure s'effectuant par l'intermédiaire d'au moins deux canaux qui, en vue de l'obtention d'un écoulement d'air, sont en communication avec des parties du canal d'aspiration entre lesquelles il existe en cas de fonctionnement du moteur une différence de pression, caractérisé en ce que ces canaux sont formés par des canaux (8, 10) communiquant avec le canal d'aspiration et par des canaux (24, 25) communiquant avec la cuve à niveau constant, qui lors du fonctionnement du moteur communiquent entre eux par l'intermédiaire de deux chambres (22, 23) formées dans un alésage (12) du corps de carburateur par des réductions de diamètre (20, 21) d'un tiroir (11), un canal (27) conduisant à l'atmosphère et/ou à un piège à charbon actif (26) étant alors obturé par le tiroir (11), et en ce que dans le cas où le moteur est arrêté les canaux (8, 10) communiquant avec le canal d'aspiration sont obturés par le tiroir (11), et l'un (24) des canaux communiquant avec la cuve à niveau constant est en communication, par l'intermédiaire de la chambre (22) formée par la réduction de diamètre (20), avec le canal (27) conduisant à l'atmosphère et/ou au piège à charbon actif (26).
2. Carburateur selon la revendication 1, caractérisé en ce que le tiroir (11) est déplacé par une membrane (13) réagissant à la pression d'amenée du combustible.
3. Carburateur selon la revendication 1, caractérisé en ce que le tiroir (11) est déplacé par un électroaimant excité en cas de fonctionnement du moteur.
EP86103114A 1985-06-26 1986-03-08 Carburateur pour moteur à combustion interne Expired EP0205759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3522812 1985-06-26
DE3522812A DE3522812C1 (de) 1985-06-26 1985-06-26 Vergaser fuer Brennkraftmaschinen

Publications (3)

Publication Number Publication Date
EP0205759A2 EP0205759A2 (fr) 1986-12-30
EP0205759A3 EP0205759A3 (en) 1987-03-25
EP0205759B1 true EP0205759B1 (fr) 1988-05-04

Family

ID=6274215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103114A Expired EP0205759B1 (fr) 1985-06-26 1986-03-08 Carburateur pour moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP0205759B1 (fr)
DE (2) DE3522812C1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR770281A (fr) * 1934-03-17 1934-09-11 Perfectionnements aux carburateurs
DE2534685A1 (de) * 1975-08-02 1977-02-03 Daimler Benz Ag Vorrichtung zur belueftung der schwimmerkammer eines vergasers
JPS60104750A (ja) * 1983-11-14 1985-06-10 Nippon Carbureter Co Ltd 気化器浮子室の掃気方法
JPS60113052A (ja) * 1983-11-25 1985-06-19 Hitachi Ltd 気化器

Also Published As

Publication number Publication date
EP0205759A2 (fr) 1986-12-30
DE3522812C1 (de) 1986-07-10
EP0205759A3 (en) 1987-03-25
DE3660175D1 (en) 1988-06-09

Similar Documents

Publication Publication Date Title
DE112016004026B4 (de) Kraftstoffdampfverarbeitungsvorrichtung
EP0740064A1 (fr) Soupape de contrÔle de recirculation de gaz d'échappement
DE10331344A1 (de) Verfahren und Vorrichtung zum Entlüften eines Kurbelgehäuses einer Brennkraftmaschine
EP0570552B1 (fr) Dispositif de mise a l'air d'un reservoir de carburant d'un moteur a combustion interne
DE102008041482A1 (de) Einlasssteuervorrichtung für eine Brennkraftmaschine
DE4338192C2 (de) Elektromagnetisches Steuerventil für Abgasrückführung
EP0688691A1 (fr) Dispositif de pompage pour un système de réservoir d'un moteur à combustion interne
DE10358639B4 (de) Kraftstoffzufuhrvorrichtung
DE2627358C2 (de) Zusatzluft-Zufuhrsystem für Abgasreinigungsvorrichtungen von Brennkraftmaschinen
DE10236387A1 (de) Vorrichtung zum dosierten Zumischen von verflüchtigtem Kraftstoff in ein Ansaugrohr einer Brennkraftmaschine
WO2013107543A1 (fr) Système d'aération de réservoir à soupape de dérivation
EP0641930A1 (fr) Valve à commande électro-pneumatique
DE19848217A1 (de) Gasverdichter
EP0205759B1 (fr) Carburateur pour moteur à combustion interne
EP0949414B1 (fr) Système d'admission d'air pour moteur à combustion
DE3137467A1 (de) Brennkraftmaschine
DE10320857A1 (de) Brennkraftmaschine mit Kraftstoffdirekteinspritzung
DE2918916A1 (de) Gasdurchflussteuervorrichtung und steuersystem fuer einen abgasturbolader
DE102018000836A1 (de) Kraftfahrzeug mit einem Entlüftungssystem für Öldämpfe und Kraftstoffdämpfe
DE102009042551A1 (de) Vergaser
DE10143686B4 (de) Entlüftungsvorrichtung für Brennkraftmaschinen
DE2558414C2 (de) Verbrennungskraftmaschine mit einer Steueranlage für die Abgasemission
DE2830258C2 (de) Steuervorrichtung für die Abschaltung von Brennstoff
DE3219720C1 (de) Gemischbildner für Brennkraftmaschinen mit einer Beschleunigungspumpe
DE2719775A1 (de) Vorrichtung zur steuerung des luft- kraftstoff-verhaeltnisses fuer eine brennkraftmaschine mit einem vergaser

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19870224

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PIERBURG GMBH

17Q First examination report despatched

Effective date: 19871013

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 FR GB IT SE

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

Ref document number: 3660175

Country of ref document: DE

Date of ref document: 19880609

ET Fr: translation filed
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

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910114

Year of fee payment: 6

Ref country code: DE

Payment date: 19910114

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19910118

Year of fee payment: 6

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

Ref country code: GB

Payment date: 19910306

Year of fee payment: 6

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

Ref country code: GB

Effective date: 19920308

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

Ref country code: SE

Effective date: 19920309

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921130

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

Ref country code: DE

Effective date: 19921201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 86103114.4

Effective date: 19921005

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: 20050308