Closure device for a pressure reservoir of a gas-refrigeration generator, which can be filled with a compressed gas

A technology for closing devices and pressure vessels, applied to devices for pressure relief on sealing surfaces, valve operating/releasing devices, valve devices, etc., which can solve the problem of short opening time, difficult control of sliding parts, and impossibility and other issues to achieve the effect of friction reduction

Inactive Publication Date: 2009-11-18
MBB INT GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device has the disadvantage that a large force is required to control the slide
In addition, these increased forces make it difficult to control the slide
The required short opening times cannot be achieved with this closure

Method used

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  • Closure device for a pressure reservoir of a gas-refrigeration generator, which can be filled with a compressed gas
  • Closure device for a pressure reservoir of a gas-refrigeration generator, which can be filled with a compressed gas
  • Closure device for a pressure reservoir of a gas-refrigeration generator, which can be filled with a compressed gas

Examples

Experimental program
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Embodiment Construction

[0037] figure 1 is a schematic sectional view of a cold gas generator 11 with a closure device 12 of the first embodiment, which is arranged on a pressure vessel 14 . The pressure vessel 14 has a vessel opening 16 at the upper end. Inserted in the container opening 16 is a valve housing 18 which, according to the exemplary embodiment, is designed in two parts. The valve housing 18 can also be multi-part. The lower section 19 of the valve housing 18 fits into the vessel opening 16 and protrudes into the interior of the pressure vessel 14 forming the main chamber 15 and extends in the opposite direction outside the pressure vessel 14 . The valve housing 18 accommodates a valve body 21 and a drive device 22 , which together form the closure device 12 .

[0038] Attached to the outer circumference of the pressure vessel 14 is a pressure bladder 24 which is only tentatively shown in the figures but which is present in all pressure vessels 14 . As soon as a signal is detected by...

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Abstract

The invention relates to a closure device for a pressure reservoir (14) of a gas-refrigeration generator (11), which pressure reservoir can be filled with a compressed gas. The valve body (21) is arranged so as to be displaceable inside a valve box (18). The valve body (21) has an effective compressive surface facing the main chamber (15) and an effective compressive surface facing the prechamber (52), both surfaces having identical size and being impingeable with the filling pressure of the main chamber (15). The valve body (21) is retained in a closed position by an outer effective compressive surface (64) which is subject to an atmospheric pressure in the direction of closure and by an energy storing element (47).

Description

technical field [0001] The invention relates to a closure device for a pressurized gas-filled pressure vessel for a cold gas generator according to the preamble of claim 1 . Background technique [0002] US-PS 6,068,288 discloses a closure for a pressurized gas-filled pressure vessel for a cold gas generator. Such cold air generators are used in particular in vehicle airbag systems. The closure device comprises a valve body which closes the opening of the container to the environment in the rest position. An electromagnetic drive is provided for the discharge of pressurized gas, by means of which the valve body can be switched into the actuated position. The valve body is configured as a slide. The different flow channels can be released by the sliding movement to allow the outflow of pressurized gas. This device has the disadvantage that a high force is required to control the slide. In addition, these increased forces make the control of such a slider difficult. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/30F16K31/06F16K39/02
CPCF16K1/302F16K31/0693F16K39/022B60R21/263B60R2021/26094B60R2021/2636F16K1/30F16K31/06F16K39/02
Inventor M·哈格H·格伦茨G·黑尔姆斯
Owner MBB INT GROUP
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