EP1298312A2 - Filtre à carburant - Google Patents

Filtre à carburant Download PDF

Info

Publication number
EP1298312A2
EP1298312A2 EP02020980A EP02020980A EP1298312A2 EP 1298312 A2 EP1298312 A2 EP 1298312A2 EP 02020980 A EP02020980 A EP 02020980A EP 02020980 A EP02020980 A EP 02020980A EP 1298312 A2 EP1298312 A2 EP 1298312A2
Authority
EP
European Patent Office
Prior art keywords
fuel
housing
filter element
spring
outlet
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
EP02020980A
Other languages
German (de)
English (en)
Other versions
EP1298312B1 (fr
EP1298312A3 (fr
Inventor
Dieter Amesöder
Dieter Schreckenberger
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Filterwerk Mann and Hummel 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 Mann and Hummel GmbH, Filterwerk Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1298312A2 publication Critical patent/EP1298312A2/fr
Publication of EP1298312A3 publication Critical patent/EP1298312A3/fr
Application granted granted Critical
Publication of EP1298312B1 publication Critical patent/EP1298312B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/46Filters structurally associated with pressure regulators

Definitions

  • the invention relates to a fuel filter.
  • a fuel injection system for internal combustion engines known. This is provided with a high-pressure pump, in which the fuel in the fuel inlet through the guided in countercurrent in a heat exchanger Fuel is preheated in the fuel return. Furthermore, in this system is a Fuel filter immediately before the entry of the fuel inlet into a heat exchanger intended. Typically, such a fuel filter with a pressure control valve equipped, which opens at an impermissible pressure and the excess Returns fuel to the tank.
  • the invention is based on the object to provide a fuel filter, which equipped with a pressure control valve, the pressure control valve in the simplest Way is constructed and works reliably. This task is done by the Characteristics of independent claim 1 solved.
  • the essential advantage of the invention is that the pressure control valve a Module is, which consists of a socket with a sealing element with in a Opening is inserted. This socket is closed with a spring-loaded ball.
  • the spring is a leaf spring, which is directly connected to the socket.
  • the Ball is between the spring-effective leg of the leaf spring and the socket arranged.
  • the pressure regulating valve at an end plate arranged the filter element.
  • This end plate has an opening into which the pressure control valve or pressure relief valve can be used.
  • Such end discs For example, consist of polyamide or polypropylene and can be produce economically.
  • the socket according to another embodiment be used with a sealing element in the opening of the end plate of the invention.
  • a development of the invention provides, the entire fuel filter substantially concentric and form as an inline filter.
  • This consists of one pot-shaped housing, wherein in the housing a filter element arranged concentrically is.
  • the filter element is facing at least one of the housing Side tightly connected to the housing, for example, welded to the housing or glued and on the opposite side to the housing solvable connected or also fixed insoluble.
  • the housing has further education a concentric outlet on one end face. At the opposite Front side is an inlet and a second outlet for the excess Fuel provided. This second outlet takes over the pressure control valve outflowing fuel.
  • the filter element according to FIG. 1 has a cup-shaped housing 10, which is provided with a lid 11 is closed. Housing and lid are welded together and are made of thermoplastic material. On the lid is a Outlet 12 arranged for the purified fuel.
  • the housing has a concentric arranged outlet 13 for the over-pressure valve to be displayed later outflowing fuel and an inlet 14 for the to be cleaned Fuel.
  • the entire filter is an inline filter and can be used in the corresponding Fuel lines are integrated.
  • the fuel lines are in common and known manner connected to the outlet or inlet pipes.
  • On the opposite lying side is the end plate 17 with a thermoplastic valve carrier 18th connected.
  • This valve carrier 18 has a groove 19. In this groove is a seal 20 inserted. This seal of the valve carrier is in contact with a concentric Collar 21 of the
  • the liquid, d. H. the fuel to be purified flows through the inlet 14 in the Outside, flows through the filter element inwards and flows over clean the outlet 12 from. If the fuel exceeds a certain allowable pressure, the excess fuel flows via a pressure relief valve 22 to the outlet 13 and from there back into the fuel tank or fuel tank.
  • the pressure relief valve is shown in FIG.
  • the valve carrier 18 includes this Pressure relief valve. It consists essentially of a socket 23. This has a concentric opening 24. On the sleeve 23, a leaf spring 25 is attached. This leaf spring is welded to the socket 24, for example. Socket and Leaf spring consist for example of a metallic material. In the socket a sealing surface 26 is provided. This sealing surface 26 is replaced by a ball 27th locked. The leaf spring 25 exerts an axially directed force on the ball 27, so that the opening 24 is closed in the normal operating state. As soon as the Overpressure in the filter element increases, the ball opens the outlet and the fuel can escape. The leaf spring can on the ball-facing surface a Have depression, so that the ball is guided reliably. She can also, at least partially comprise the ball to a sliding out of the ball from the desired position to prevent.
  • the ball consists for example of a plastic. Of course, there is also the possibility of the parts shown here Bushing and leaf spring to form from corresponding plastic parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Filtration Of Liquid (AREA)
  • Control Of Fluid Pressure (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Glass Compositions (AREA)
EP02020980A 2001-09-26 2002-09-20 Filtre à carburant Expired - Lifetime EP1298312B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10147416 2001-09-26
DE10147416 2001-09-26

Publications (3)

Publication Number Publication Date
EP1298312A2 true EP1298312A2 (fr) 2003-04-02
EP1298312A3 EP1298312A3 (fr) 2004-08-11
EP1298312B1 EP1298312B1 (fr) 2006-07-26

Family

ID=7700319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020980A Expired - Lifetime EP1298312B1 (fr) 2001-09-26 2002-09-20 Filtre à carburant

Country Status (4)

Country Link
EP (1) EP1298312B1 (fr)
AT (1) ATE334308T1 (fr)
DE (1) DE50207615D1 (fr)
ES (1) ES2267912T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005015679U1 (de) * 2005-10-05 2007-02-15 Mann + Hummel Gmbh Filtereinrichtung, insbesondere zur Flüssigkeitsfilterung in Brennkraftmaschinen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056048A1 (de) 2000-11-11 2002-06-06 Bosch Gmbh Robert Kraftstoffeinspritzanlage für Brennkraftmaschinen mit Kraftstoffvorwärmung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107979C2 (de) * 1991-03-13 1998-07-09 Bosch Gmbh Robert Hydraulische Hochdruckpumpe für Kraftfahrzeug-Bremsanlagen
US5830348A (en) * 1997-03-17 1998-11-03 Siemens Automotive Corporation Fuel filter module with integral regulator
DE19754243A1 (de) * 1997-12-06 1999-06-10 Bosch Gmbh Robert Flüssigkeitsfilter mit eingebautem Druckregler
DE10111545A1 (de) * 2001-03-10 2002-09-12 Bosch Gmbh Robert Flüssigkeitsfilter mit eingebautem Druckregler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056048A1 (de) 2000-11-11 2002-06-06 Bosch Gmbh Robert Kraftstoffeinspritzanlage für Brennkraftmaschinen mit Kraftstoffvorwärmung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005015679U1 (de) * 2005-10-05 2007-02-15 Mann + Hummel Gmbh Filtereinrichtung, insbesondere zur Flüssigkeitsfilterung in Brennkraftmaschinen

Also Published As

Publication number Publication date
ES2267912T3 (es) 2007-03-16
ATE334308T1 (de) 2006-08-15
EP1298312B1 (fr) 2006-07-26
EP1298312A3 (fr) 2004-08-11
DE50207615D1 (de) 2006-09-07

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