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Device and process for circulation of pressurized fluid in an actuator system

A technology for pressurized fluids and actuators, which can be used in fluid pressure actuation devices, fluid pressure actuation system components, mechanical equipment, etc., and can solve problems such as actuator difficulties.

Inactive Publication Date: 2006-09-20
IMENCO ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, access to the actuator can be difficult, so this method can only be used in limited applications

Method used

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  • Device and process for circulation of pressurized fluid in an actuator system
  • Device and process for circulation of pressurized fluid in an actuator system
  • Device and process for circulation of pressurized fluid in an actuator system

Examples

Experimental program
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Embodiment Construction

[0016] In the figures, reference numeral 1 designates the actuator of the valve 2 . The actuator 1 comprises a first hydraulic fluid chamber 4, a running member in the form of a piston 6 and a second hydraulic fluid chamber 8, as well as other essential components known per se (not shown).

[0017] Pressurized hydraulic fluid is supplied from the hydraulic device to the directional valve 10 through the supply pipe P. As shown in FIG. The hydraulic fluid returns from the directional valve 10 to the hydraulic device (not shown) through the return pipe T.

[0018] The first connecting pipe A connects a working port of the directional valve 10 and the first hydraulic chamber 4 . The second connecting pipe B connects the second working port of the directional valve 10 and the second hydraulic chamber 8 .

[0019] The actuator 1 is provided with a first controlled one-way valve 12 which, for illustrative purposes, is shown in the drawings as the piston 6 approaches its first The ...

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PUM

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Abstract

A device and method for a circulating valve for an actuator (1) supplied with pressurized fluid via a directional valve (10) and a first connecting pipe (A) to a first pressurized fluid chamber (4) and a second connecting pipe (B) to a second pressurized chamber (8), respectively, where the introduction of pressurized fluid in one of the pressurized fluid chambers (4, 8) causes the operative member (6) of the actuator (1) to be displaced towards a corresponding extreme position, and where a bypass valve (12, 14) controlled by the operative member (6) is connected in a communicating manner between the connecting pipes (A, B), the bypass valve (12, 14) being arranged so as automatically to open a connection between the connecting pipes (A, B) when the operative member (6) is in a specific position.

Description

technical field [0001] The present invention relates to the circulation of pressurized fluid in actuator systems, and more particularly to a hydraulic circulation valve which is particularly suitable for use in hydraulic systems in which the hydraulic fluid is by its nature to be periodically circulated to avoid performance degradation. The invention also relates to a method of circulating pressurized fluid in an actuator system. Background technique [0002] It is obvious that when so-called environmental oils are used in hydraulic systems, self-degradation occurs if the oils are left for a period of time, eg in pipes. Among the products of this reaction process are glucose and acid reaction materials that can damage hydraulic systems. [0003] Small hydraulic systems with low flow rates and possibly irregular use, such as control systems for valve actuators, have proven to be particularly susceptible to this type of damage. [0004] In most cases, periodic actuation of t...

Claims

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Application Information

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IPC IPC(8): F15B21/04
CPCF15B21/04F15B21/001F15B20/00F15B2211/405
Inventor 约恩·格伦福尔
Owner IMENCO ENG