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Proportional valve for controlling a gaseous medium

A gaseous medium, proportional valve technology, applied in the field of proportional valves, can solve the problems of inefficient structural form and large structural space of proportional valves, and achieve the effect of optimized orientation and large surface pressure

Active Publication Date: 2019-11-26
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to greater installation space and thus to an inefficient design of the entire proportional valve

Method used

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  • Proportional valve for controlling a gaseous medium
  • Proportional valve for controlling a gaseous medium

Examples

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Embodiment Construction

[0019] figure 1 An exemplary embodiment of a proportional valve 1 according to the invention is shown in longitudinal section. The proportional valve 1 has a valve housing 2 which has an inner chamber 3 . A solenoid coil 16 with an outer pole 14 and an inner pole 15 is arranged in the inner chamber 3 . The inner pole 15 comprises a first inner pole element 12 and a second inner pole element 18 . The first inner pole element 12 and the second inner pole element 18 are connected to one another by a weld seam 7 .

[0020] The valve housing 2 , the first inner pole element 12 and the second inner pole element 18 delimit a spring chamber 34 , wherein the spring chamber 34 is formed as part of the inner chamber 3 . Arranged in the spring chamber 34 is a closing spring 24 which is supported on the one hand on the valve housing 2 and on the other hand on the disk-shaped end 19 of the connecting element 8 arranged in the inner chamber 3 . The connecting element 8 has a first guide ...

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Abstract

The invention relates to a proportional valve (1) for controlling a gaseous medium, in particular hydrogen, comprising a valve housing (2), wherein an interior space (3) is formed in the valve housing(2). A solenoid coil (16) having an outer pole (14) and an inner pole (15) is arranged in the interior space (3). Furthermore, the inner pole (15) is designed in two parts and comprises a first innerpole element (12) and a second inner pole element (18).

Description

technical field [0001] The invention relates to a proportional valve for controlling a gaseous medium, in particular hydrogen, for use in vehicles with a fuel cell drive, for example. Background technique [0002] In the field of vehicle development, gaseous fuels, especially hydrogen, are an alternative to conventional liquid fuels. In vehicles with a fuel cell as drive, it is necessary to control the hydrogen flow, wherein the gas flow is not controlled discontinuously, as in the case of liquid fuel injection, but for example using a proportional valve which depends on the desired The drive power adjusts the opening cross-section. [0003] A proportional valve for controlling a gaseous medium is known from DE 10 2012 204 565 . The proportional valve comprises a nozzle body with a through opening, a closing element with a spring element. The through-opening can be released and closed at the valve seat by means of the closing element. The elastic sealing element seals ag...

Claims

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Application Information

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IPC IPC(8): F16K1/52F16K27/02F16K31/06
CPCF16K1/523F16K27/029F16K31/0655F16K31/0675F16K31/0693
Inventor A·格林贝格尔J·韦斯内尔H-C·马格尔
Owner ROBERT BOSCH GMBH