US Patent 7246498 Refrigerating apparatus

Patent 7246498 was granted and assigned to Hitachi on July, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

All edits

Edits on 16 Sep, 2023

"Add patent inventor(s)"

Golden AI

edited on 16 Sep, 2023

Edits made to:

Infobox (+2 properties)

Infobox

Patent Inventor Names

Makoto Fujita0

Yoshikazu Amo0

Edits on 1 Sep, 2023

"Add patent abstract"

Golden AI

edited on 1 Sep, 2023

Edits made to:

Article (+611 characters)

Article

Patent abstract

A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus.

Edits on 26 May, 2023

"Remove website redirecting to Patent Public Search front page"

Golden AI

edited on 26 May, 2023

Edits made to:

Infobox (-1 properties)

Infobox

Official Website

https://pdfpiw.uspto.gov/.piw?Docid=072464980

Edits on 23 May, 2023

"Remove leading 0 from patent number"

Golden AI