EP1298312A2 - Kraftstofffilter - Google Patents
Kraftstofffilter Download PDFInfo
- 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
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
- F02M37/00—Apparatus 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
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements 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
- F02M37/46—Filters 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)
- Control Of Fluid Pressure (AREA)
- Filtration Of Liquid (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)
Abstract
Description
- Figur 1
- einen Kraftstofffilter in einer Schnittdarstellung,
- Figur 2
- ein Druckregelventil in Modulbauweise, ebenfalls ein einer Schnittdarstellung.
Claims (5)
- Kraftstofffilter mit einem Einlass für ungereinigten Kraftstoff, einem Auslass für den gereinigten Kraftstoff, einem Filterelement, sowie einem Druckregelventil und einem Auslass für den durch das Druckregelventil strömenden Kraftstoff, wobei das Druckregelventil ein Modul ist, bestehend aus einer Buchse die mit einem Dichtelement in eine Öffnung eingesetzt ist und die Buchse eine Öffnung aufweist, welche mit einer federbelasteten Kugel verschlossen ist, wobei die Feder eine Blattfeder ist und die Blattfeder unmittelbar an der Buchse befestigt ist und die Kugel zwischen dem federwirksamen Schenkel der Blattfeder und der Buchse angeordnet ist.
- Kraftstofffilter nach Anspruch 1, dadurch gekennzeichnet, dass das Druckregelventil an einer Endscheibe des Filterelements angeordnet ist.
- Kraftstofffilter nach Anspruch 1, dadurch gekennzeichnet, dass die Buchse mit einem Dichtelement in eine Öffnung der Endscheibe eingesetzt ist.
- Kraftstofffilter nach Anspruch 1, dadurch gekennzeichnet, dass dieser im wesentlichen konzentrisch aufgebaut ist und ein topfförmiges Gehäuse aufweist, wobei in dem Gehäuse ein konzentrisch angeordnetes Filterelement vorgesehen ist, und wobei das Filterelement auf wenigstens einer dem Gehäuse zugewandten Seite mit dem Gehäuse dicht verbunden ist und auf der gegenüberliegenden Seite an dem Gehäuse eine Aufnahme zur Fixierung des Filterelements vorgesehen ist.
- Kraftstofffilter nach Anspruch 4, dadurch gekennzeichnet, dass auf der Seite, auf welche das Filterelement mit dem Gehäuse dicht verbunden ist, ein Auslass für gereinigte Flüssigkeit vorgesehen ist und auf der gegenüberliegenden Seite des Gehäuses ein Einlass für ungereinigte Flüssigkeit und ein zweiter Auslass für Flüssigkeit, die vom Überdruckventil abgeleitet wird, vorgesehen ist.
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 (de) | 2003-04-02 |
EP1298312A3 EP1298312A3 (de) | 2004-08-11 |
EP1298312B1 EP1298312B1 (de) | 2006-07-26 |
Family
ID=7700319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02020980A Expired - Lifetime EP1298312B1 (de) | 2001-09-26 | 2002-09-20 | Kraftstofffilter |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1298312B1 (de) |
AT (1) | ATE334308T1 (de) |
DE (1) | DE50207615D1 (de) |
ES (1) | ES2267912T3 (de) |
Cited By (1)
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)
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)
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 |
-
2002
- 2002-09-20 EP EP02020980A patent/EP1298312B1/de not_active Expired - Lifetime
- 2002-09-20 AT AT02020980T patent/ATE334308T1/de not_active IP Right Cessation
- 2002-09-20 ES ES02020980T patent/ES2267912T3/es not_active Expired - Lifetime
- 2002-09-20 DE DE50207615T patent/DE50207615D1/de not_active Expired - Lifetime
Patent Citations (1)
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)
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 |
---|---|
EP1298312B1 (de) | 2006-07-26 |
DE50207615D1 (de) | 2006-09-07 |
EP1298312A3 (de) | 2004-08-11 |
ES2267912T3 (es) | 2007-03-16 |
ATE334308T1 (de) | 2006-08-15 |
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