Oil line control system

US2016238293A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016238293-A1
Application numberUS-201514624612-A
CountryUS
Kind codeA1
Filing dateFeb 18, 2015
Priority dateFeb 18, 2015
Publication dateAug 18, 2016
Grant date

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present application provides a refrigeration system. The refrigeration system may include a suction header, a compressor, a suction header oil return line in communication with the suction header and the compressor, and an oil line control system. The oil line control system may include a sensor and a valve to open and shut the suction header oil return line in response to the sensor.

First claim

Opening claim text (preview).

I claim: 1 . A refrigeration system, comprising: a suction header; a compressor; a suction header oil return line in communication with the suction header and the compressor; and an oil line control system; wherein the oil line control system comprises a sensor and a valve to open and shut the suction header oil return line in response to the sensor. 2 . The refrigeration system of claim 1 , further comprising a refrigerant line in communication with the compressor and the suction header. 3 . The refrigeration system of claim 1 , wherein the suction header comprises refrigerant therein. 4 . The refrigeration system of claim 1 , wherein the suction header comprises oil therein. 5 . The refrigeration system of claim 1 , wherein the valve comprises a solenoid valve. 6 . The refrigeration system of claim 1 , wherein the sensor comprises a temperature sensor. 7 . The refrigeration system of claim 1 , wherein the oil line control system comprises a control in communication with the valve and the sensor. 8 . The refrigeration system of claim 1 , wherein the oil line control system comprises a manual control valve on the suction header oil return line. 9 . The refrigeration system of claim 8 , wherein the manual control valve comprises a ball valve. 10 . The refrigeration system of claim 1 , wherein the oil line control system comprises a pneumatic valve on the suction header oil return line. 11 . The refrigeration system of claim 10 , wherein the pneumatic valve comprises a Schrader valve. 12 . The refrigeration system of claim 1 , further comprising an oil separator downstream of the compressor. 13 . The refrigeration system of claim 12 , further comprising an oil separator return line in communication with the oil separator and the compressor. 14 . The refrigeration system of claim 1 , further comprising a plurality of compressors. 15 . A method of protecting a compressor from a flow of liquid refrigerant, comprising: monitoring a temperature of a fluid in an oil return line extending between a suction header and the compressor; determining a temperature drop in the fluid in the oil return line; and closing the oil return line until the temperature of the fluid in the oil return line increases. 16 . A refrigeration system, comprising: a suction header; a compressor; a suction header oil return line in communication with the suction header and the compressor; a temperature sensor positioned about the suction header oil return line; and a valve to open and shut the suction header oil return line in response to the temperature sensor. 17 . The refrigeration system of claim 16 , wherein the suction header comprises refrigerant and oil therein. 18 . The refrigeration system of claim 16 , wherein the valve comprises a solenoid valve. 19 . The refrigeration system of claim 16 , wherein the suction header oil return line comprises a manual control valve thereon. 20 . The refrigeration system of claim 16 , wherein the suction header oil return line comprises a pneumatic valve thereon.

Assignees

Inventors

Classifications

  • oil recirculating arrangements · CPC title

  • Accumulators · CPC title

  • at the suction side of the compressor · CPC title

  • Means for preventing liquid refrigerant entering into the compressor · CPC title

  • F25B43/02Primary

    for separating lubricants from the refrigerant · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US2016238293A1 cover?
The present application provides a refrigeration system. The refrigeration system may include a suction header, a compressor, a suction header oil return line in communication with the suction header and the compressor, and an oil line control system. The oil line control system may include a sensor and a valve to open and shut the suction header oil return line in response to the sensor.
Who is the assignee on this patent?
Heatcraft Refrigeration Products Llc
What technology area does this patent fall under?
Primary CPC classification F25B43/02. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Aug 18 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).