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Valves with fail-safe mechanism

A fail-safe, valve body technology, applied in safety valves, failure prevention, engine cooling, etc.

Active Publication Date: 2018-04-13
HANON SYST EFP DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, only in the case of non-self-locking adjusting actuators, the fail-safe mechanism of DE 10 2012 208 652 B3 or its torsion spring must always perform work against the resistance or moment of inertia of the actuator, for which the torsion spring must Correspondingly rigid and thus relatively large

Method used

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  • Valves with fail-safe mechanism
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  • Valves with fail-safe mechanism

Examples

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Embodiment Construction

[0031] according to figure 1 , the valve 10 has a substantially hollow-cylindrical valve housing 12 with an outlet 19 and a plurality of inlets 18, of which only one, however, is visible. The valve housing 12 rotatably accommodates in its interior a likewise substantially hollow-cylindrical valve body 16 , wherein the valve body 16 has a plurality of inlet channels 20 , 21 , 22 , which according to the The rotational position of the valve body 16 of the respective inlet 18 is aligned such that the coolant flow between the respective inlet 18 and outlet 19 can be varied as a function of the rotational position of the valve body 16 .

[0032] Furthermore, the valve 10 has an adjusting actuator 24 , the actuator shaft 26 of which is indirectly and releasably connected to the valve body 16 in order to rotate it. In this case, the actuator shaft 26 extends through the opening 68 of the housing cover 14 , which is mounted on a substantially hollow-cylindrical housing body 74 which ...

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PUM

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Abstract

A valve (10) for use in coolant flow, said valve comprising: a valve housing (12) having at least one inlet (18) and at least one outlet (19); a valve body (16), said The valve body is rotatably accommodated by the valve housing (12), wherein the flow of coolant between the inlet and the outlet (18, 19) varies according to the rotational position of the valve body (16); the actuator (24), It has a shaft (26) for rotating the valve body (16); and a fail-safe mechanism (40) that can be preloaded in a rotational manner; wherein the valve body (16) is coupled with an axially movable coupling element (28) In rotational engagement, the valve body (16) is indirectly releasably connected to the actuator shaft (26) via said coupling element, wherein in the event of a fault due to the axial movement of the coupling element (28), the valve body ( 16) Disengageable from the actuator shaft (26), wherein the fail-safe mechanism (40) is adjusted to, due to the axial movement of the coupling element (28), come into rotational engagement with the coupling element (28) so that the valve body ( 16) Turn into a predetermined fail-safe position.

Description

technical field [0001] The invention relates to a valve for use in coolant flow, known for example from DE 10 2012 208 652 B3, comprising a valve housing with at least one inlet and at least one an outlet; a valve body, which is rotatably accommodated by the valve housing, wherein the coolant flow between the inlet and the outlet varies according to the rotational position of the valve body; an actuator, the The actuator has an actuator shaft for rotating the valve body; and a fail-safe mechanism that is rotatably preloaded. Background technique [0002] Such a valve can be used to control the coolant flow of the internal combustion engine in order to ensure the coolant temperature in the fluid circuit as a function of the load. However, in the event of a fault, for example an incorrect actuation of a valve, a failure of a valve actuator or a valve remaining inserted, an undesired temperature increase of the coolant can result, resulting in an emergency situation which can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/085F16K31/00
CPCF16K11/085F16K31/003F01P2031/32F16K17/386F16K31/055
Inventor 弗里德里希·阿施赖特尔汉内斯·霍夫施泰特尔马库斯·奥贝尔阿德施泰特安德烈亚斯·阿维格格尔德·施拉格
Owner HANON SYST EFP DEUT GMBH
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