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Valve

A technology for sealing components and casings, applied in the field of valves, can solve the problems of unsealing, increased residual clearance of armatures and yokes, etc., and achieve the effects of stable closing performance, small thermal expansion, and reduction of axial expansion.

Inactive Publication Date: 2012-05-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is especially the thermal expansion of the annular sealing member whose axial assembly leads to an increase in the residual gap between the armature and the yoke when the valve is closed
This correlates to a reduction in the solenoid closing force, whereby the valve will be leak-tight

Method used

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Embodiment Construction

[0024] Possible configurations of the electrically actuatable valve are described with reference to the following figures. Valves, which can be used, for example, in the cooling medium circuit of vehicles, are characterized by a robust closing behavior which is ensured in the event of temperature-induced deformation of the valve assembly.

[0025] figure 1 A schematic side cross-sectional view of valve 100 is shown. The valve 100 has a housing 110 which encloses an essentially hollow-cylindrical interior 105 . A lower connection opening 120 and a side connection opening 122 are provided on the housing 110 , for example of plastic material. The medium can enter the inner space 105 of the valve housing through the asymmetrically arranged connection openings 120 , 122 . With regard to the above-described coolant circulation of the motor vehicle, for example, the lower connection 120 is used to feed in the coolant (delivered by the pump), and the lower connection 122 is used to...

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PUM

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Abstract

The invention relates to a valve (100, 101) comprising a housing (110, 111), an annular sealing element (140, 146), and a displaceable closure element (170), wherein the sealing element (140, 146) and the closure element (170) are disposed within the housing (110, 111), and wherein the valve (100, 101) can be closed by placing the closure element (170) against the sealing element (140, 146). The valve (100, 101) is characterized by a hollow space (131, 132) in the region of an outer side of the sealing element (140, 146), in which a part (143, 144) of the sealing element (140, 146) can be received during thermal expansion. The invention further relates to another valve (102) in which the annular sealing element is an O-ring (150).

Description

technical field [0001] The invention relates to a valve having a housing, an annular sealing member and a displaceable closing member. Background technique [0002] Valves are used in order to control the volume flow of gases and liquids. Possible fields of application are, for example, coolant circulation in vehicles, in which the engine of the vehicle is cooled by means of a coolant and the heated coolant is used, if necessary, to heat the vehicle. The distribution of the cooling medium to the different branches of the cooling or heating circuit is controlled by electrically actuatable valves. [0003] Conventional valves in vehicle coolant circuits have a valve housing, an annular sealing component inside the housing and a closing component designed as a sealing cone. The sealing member is pressed against a stop of the housing via the spacer. The closing member is connected with a movably lifting rod installed inside the casing, through which the closing member can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/42
CPCF16K1/42F16K1/427
Inventor J.普费策尔T.科特拉斯基A.舍内曼J.施密德S.马富德
Owner ROBERT BOSCH GMBH
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