Balanced valve device and breathing apparatus comprising such valve device
a valve body and valve body technology, applied in the field of valve devices, can solve the problems of o-ring leakage, preventing the achievement of the desired balancing effect and sealing effect, and the sealing surface between the valve body and the seating ultimately tends to leakage, and achieves the effect of simple mechanical solution
Inactive Publication Date: 2006-08-15
POSEIDON IND
View PDF19 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0013]The inventive valve device and the inventive breathing regulator provide an essentially constant valve characteristic, while also affords a simple mechanical solution.
[0014]In one particularly preferred embodiment, a spherical body, or ball, is used as a valve-closing member. The valve-closing member is thus beneficially self-guiding.
Problems solved by technology
One problem with such known valve devices is that movement of the valve body is dependent on the tank pressure, which in the case of a full tank can correspond to a super atmospheric pressure of about 300 bar and may fall to close on 0 bar during use.
The use of a valve body of this design, however, has the drawback that the sealing surface between the valve body and the seating ultimately tends to leak.
After having been in use for a longer period of time, the cone becomes damaged, in the form of scratches and ruts in the hole-defining edge and the cone, this damage contributing to seal leakage.
The O-ring may begin to leak as a result of abrasion and other type of wear, thereby preventing achievement of the desired balancing effect and sealing effect.
It will be realised, however, that the balancing solution illustrated in FIG. 2 cannot be applied when a spherical body is used as a valve-closing means.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024]A preferred embodiment of an inventive valve device and an inventive breathing regulator will now be described, first with reference to FIG. 3. It will be noted that the directions mentioned in the description, such as up, down, etc., refer only to those directions shown in the figures and shall not therefore be considered to limit the scope of the invention when interpreting the accompanying claims.
[0025]FIG. 3 is a principle diagram of an inventive valve device. The valve device includes an inlet side 111, an outlet side 112, a diaphragm or membrane 116, a diaphragm spring 117, and a rod 118. These valve components correspond to the valve components shown in FIG. 1. The valve device also includes a valve-closing body in the form of a ball 114, which rests over an opening 115a in a seating 115. Distinct from the seating used in said known valve technology, the seating 115 can move up and down, as indicated by the double-headed arrow in FIG. 3. Sealing between the inlet and th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more Abstract
A valve device, particularly for a breathing regulator for divers, including an inlet chamber which can be connected to a source of gas under super-atmospheric pressure, and an outlet chamber which is under a regulated pressure. A seating, which is movable under the influence of the super-atmospheric pressure and the regulated pressure, seals between the inlet chamber and the outlet chamber and has a through-passing passageway that interconnects the chambers. Also included is a valve body which is movably arranged in the seating such as to open and close the through-passing passageway in the seating. A servo element exerts on the valve body a force that depends on the position of the movable seating, so that varying force-influence on the valve body from the super-atmospheric pressure will be compensated for by a corresponding varying force from the servo element. This results in an essentially constant valve characteristic, while providing a mechanically simple solution at the same time.
Description
FIELD OF INVENTION[0001]The present invention relates to valve devices and then particularly to balanced valve devices for controlling the flow of pressurised breathable gas to breathing regulators. The invention also relates to such a breathing regulator.DESCRIPTION OF THE BACKGROUND ART[0002]Diving equipment includes a so-called breathing regulator which is connected to one or more diving tanks or their technical equivalence and which is intended to adjust the tank pressure to a predetermined regulated pressure. The breathing regulator is provided with a valve device to this end. FIG. 1 illustrates diagrammatically one such valve device constructed in accordance with known technology. As will be seen, the valve includes an inlet side 11, which is under tank pressure Pinlet, and an outlet side 12, which is under the regulated pressure Poutlet. A conical valve body 14 is movable in a seating 15. The outlet side 12 is delimited by a flexible diaphragm or membrane 16, which is connect...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more Patent Type & Authority Patents(United States)
IPC IPC(8): A62B9/02F16K31/165B63C11/22
CPCB63C11/2209F16K31/165
Inventor T
Owner POSEIDON IND
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap