Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and apparatus to indicate activation of pressure relief device

A technology of pressure and relief valves, which is applied in the direction of fluid pressure actuating devices, valve devices, mechanical equipment, etc., and can solve problems such as incorrect seating of seals, incorrect re-seating of seals, increased loss of refrigerant, etc.

Active Publication Date: 2014-06-25
CARRIER CORP
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Unfortunately, resealable pressure relief valves often do not reseal properly, meaning the seal does not reseat properly to form a tight seal
While initial seating in one of these valves can satisfactorily seal a refrigeration system, during resealing there are a variety of factors that can cause the seal to not seat properly, including but not limited to O-ring misalignment , microscopic cracks in O-rings, and oil or debris that collects on the sealing surfaces
As a result of improper resealing, refrigeration systems can continue to operate with undetected leaks, which results in increased refrigerant losses and reduced operating efficiency

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus to indicate activation of pressure relief device
  • Method and apparatus to indicate activation of pressure relief device
  • Method and apparatus to indicate activation of pressure relief device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] An indicator is provided to indicate when the pressure relief valve has been activated (ie opened to discharge refrigerant). Indicators work with existing pressure relief valves, including but not limited to Figure 1-3 the one depicted in . Although for purposes of describing the indicator, here is an example of Figure 1-3 The specific valve for the pressure relief valve, but those skilled in the art will recognize that the indicator can be used or changed in a number of obvious ways for use with various other pressure relief valves.

[0027] figure 1 and 2 A typical existing spring loaded pressure relief valve is illustrated. Valve 10 includes an elongated valve body 12 having an inlet port 14 and an outlet port 18 and defining a chamber 24 . The inlet port 14 has an externally threaded portion 22 for connecting the valve 10 directly or indirectly to a refrigeration system. A threaded portion 22 at the inlet end 14 defines the inlet and outlet channel 16 . The...

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

No PUM Login to View More

Abstract

An activation indicator for a refrigeration system pressure relief valve is presented. In one embodiment, the indicator comprises a covering that covers an outlet passage of the pressure relief valve. The covering is at least partially displaceable by refrigerant as it exits the refrigeration system through the pressure relief valve. In another embodiment, sensors outputting a signal transmit an altered signal when the relief device releases refrigerant. A notification device is activated to indicate that the pressure relief device has activated.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application Serial No. 61 / 236,749, filed August 25, 2009, and U.S. Provisional Patent Application Serial No. 61 / 237,097, filed August 26, 2009, and all The contents are incorporated herein by reference. Background technique [0003] A basic refrigeration system consists of four components: a compressor, a refrigerant heat exchanger, an expansion valve, and an evaporator. In the compressor, the refrigerant gas is compressed. By compression, the gas is heated. The heated gas flows through a refrigerant rejection heat exchanger, or gas cooler, which may consist of coiled tubing on the outside of the refrigerated space. The coils provide a large surface area through which heat from the refrigerant is released to the air outside the refrigerated space. The refrigerant cools when heat is transferred from the refrigerant to the air. The cooled refrigerant is then...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00F16K17/04F15B15/28
CPCF16K37/00F25B49/005F16K17/04Y10T137/0318Y10T137/8326
Inventor H-J.赫夫J.斯卡塞拉L.Y.柳S.杜赖萨米Z.阿斯普罗夫斯基M.S.罗杰斯G.B.霍夫斯达尔
Owner CARRIER CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com