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Electromagnetic valve

An electromagnetic control, valve seat-oriented technology, applied in the field of electromagnetic valves, can solve the problems of expensive, complex sealing body manufacturing, and complex sealing body geometry.

Inactive Publication Date: 2009-06-17
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the solenoid valve described is that the sealing body has a very complex geometry
The manufacture of such seals is therefore complex and expensive

Method used

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  • Electromagnetic valve
  • Electromagnetic valve

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Embodiment Construction

[0029] In FIG. 1, an electromagnetically actuatable valve 1 can be seen in a housing 2 with an inlet pipe connection 3, which can be connected to an exhaust pipe connection of a fuel tank not shown here or to a The adsorption filter behind this exhaust pipe connection is connected; the housing also has an outlet pipe connection 4 for connection to an intake pipe, also not shown, of the internal combustion engine.

[0030] The valve 1 comprises a field coil 5 with a magnetic core 6 which is associated with an armature 7 . The armature 7 can reciprocate between an open position and a closed position according to the energization of the coil 5 , wherein the closed position is defined by the engagement of the armature 7 on the valve seat 8 at the inlet of the output pipe joint 4 . The armature 7 does not rest directly on the valve seat 8 . A sealing element is connected in the middle, and according to a preferred embodiment of the present invention, the sealing element is made as...

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PUM

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Abstract

The invention relates to an electromagnetically controllable valve, in particular to a fuel tank exhaust valve for automobiles, comprising a magnetic excitation coil (5) and an armature (7), the armature can be controlled by the magnetic excitation coil (5) and Can be reciprocated between an open and a closed position, wherein the closed position is engaged by the side of the armature (7) facing the valve seat (8) with an intermediate connection of a sealing body that can be detachably fixed on a base body Defined on the valve seat (8). In order to reduce manufacturing costs, according to the invention it is envisaged that the sealing body is designed as an essentially annular sealing element (9), in particular an O-ring (9), which can be fastened to the base body.

Description

technical field [0001] The present invention relates to a solenoid valve, especially for exhausting fuel tanks in automobiles, which comprises an excitation coil and an armature controllable by the excitation coil, and can reciprocate between an open position and a closed position, wherein the closed position With the interposition of a sealing body detachably fastened to a base body, it is defined by the abutment of the side of the armature facing a valve seat on said valve seat. Background technique [0002] Solenoid-controllable valves for quantitatively introducing fuel vapors emanating from a fuel tank of an internal combustion engine into an intake manifold of an internal combustion engine are known and described several times in the literature. The valve usually has a valve body with an inlet connection for connection to the fuel tank or to a sorption filter behind the fuel tank and an outlet connection for connection to the intake line. Inside the valve body there i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K31/06F16K1/36B60K15/077F02M37/00
Inventor T·格里希H·赫尔J·比特纳V·道默S·德里梅S·克纳普M·海因茨尔贝克
Owner CARL FREUDENBERG KG