Patent · US Active

Startup logic for refrigeration system

US9739519B2 · kind B2 · utility

3Cited by

6References

10Claims

0Family size

Assignee

CARRIER CORPORATION · US

Inventors

Mingfei Gan · Manlius, US
KeonWoo Lee · Manlius, US
Hans-Joachim Huff · Berlin, DE
Aryn Shapiro · Syracuse, US
Lucy Yi Liu · Fayetteville, US
Gilbert B. Hofsdal · Chittenango, US
Jian Sun · Xiamen, CN

Key dates

Filing date	Jul 25, 2012
Grant date	Aug 22, 2017
Priority date	—
Expiry date	May 30, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B30/70
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A refrigeration system includes a compressor having a first stage and a second stage; a heat rejecting heat exchanger including an inter-cooler and a gas cooler, the intercooler coupled to an outlet of the first stage and the gas cooler coupled to an outlet of the second stage; an unload valve coupled to an outlet of the intercooler and a suction port of the first stage; a flash tank coupled to an outlet of the gas cooler; a primary expansion device coupled to an outlet of the flash tank; a heat absorbing heat exchanger coupled to an outlet of the primary expansion device, an outlet of the heat absorbing heat exchanger coupled to the suction port of the first stage; and a controller for executing a startup process including controlling the unload valve to direct refrigerant from the intercooler to the suction port of the first stage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.