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Fluid valve assembly including valve body having seal retention feature

A technology of valve body and fluid valve, applied to parts in contact between valve elements and valve seats, cocks including cut-off devices, multi-way valves, etc., can solve the problem of reducing valve operating life, excessive wear of seals and valve bodies, etc. problems, to increase reliability and durability, reduce wear, and minimize wear

Pending Publication Date: 2022-03-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, this force can also cause excessive wear on the seals and valve body and reduce the operating life of the valve

Method used

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  • Fluid valve assembly including valve body having seal retention feature
  • Fluid valve assembly including valve body having seal retention feature
  • Fluid valve assembly including valve body having seal retention feature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] refer to figure 1 – Figure 4 , the fluid valve assembly 1 includes a fluid valve 2 and an actuator 200 for actuating the fluid valve 2 . The fluid valve assembly 1 may be used, for example, to control the distribution and flow of coolant in a vehicle cooling system. Fluid valve 2 is a rotary plug valve. The rotary plug valve 2 is mounted to the actuator housing 202 and includes a plug assembly 60 seated in the valve body 4 and rotatable relative to the valve body 4 about an axis of rotation 64 . Valve body 4 includes three valve ports 24 , 26 , 28 and the rotational orientation of plug assembly 60 relative to valve body 4 is set via actuator 200 . The rotational orientation of the plug assembly 60 relative to the valve body 4 determines one or more fluid flow paths through corresponding ones of the valve ports 24 , 26 , 28 . The rotary plug valve 2 has a single elastomeric valve seal 130 that provides a fluid-tight seal between the valve body 4 and the plug assemb...

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PUM

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Abstract

A fluid valve includes a valve body and a valve plug disposed in the valve body. The valve body includes a base and a cylindrical sidewall that together define a plug chamber. The valve body includes a valve port. The valve plug is rotatable relative to the valve body about an axis of rotation. The valve plug supports an annular seal in such a manner that a) the seal abuts an inner surface of the sidewall and provides a liquid-tight seal between the valve plug and the valve body for a specific orientation of the valve plug relative to the valve body, and b) the seal moves along a circular path relative to the valve body during rotation of the valve plug relative to the valve body. At least one of the valve ports includes a guide feature that guides a seal along a circular path.

Description

Background technique [0001] A fluid valve assembly includes a rotary plug valve, a motor for actuating the rotary plug valve, and a gear set connecting the motor to the rotary plug valve. A rotary plug valve is a type of fluid valve that can be used to control the flow and distribution of fluid through a fluid supply system. For example, a rotary plug valve may be used to control the flow of coolant through a vehicle cooling system. A rotary plug valve may include a valve body and a valve plug operably connected to the valve body by an elastomeric valve seal. Some conventional rotary plug valves rely on force from compression of an elastomeric seal or spring, or both, between the valve body and plug to seal the valve. Various hard seal materials have also been used (eg, thermoplastics, ceramics, or metals), and often utilize springs to supply the relatively high sealing force required for hard seals. This force must be sufficient to seal the valve when the pressure differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/06F16K11/085F16K5/04F01P7/14
CPCF16K11/0853F16K5/0478F16K27/065F01P2007/146F16K25/00F01P7/165
Inventor T·查普曼A·温基特斯瓦兰G·波波维奇L·王
Owner ROBERT BOSCH GMBH
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