Hong L Lin

US Patent:

20220282927, Sep 8, 2022

Filed:

May 26, 2022

Appl. No.:

17/825812

Inventors:

- Richardson TX, US
Hong Lin - Plano TX, US

International Classification:

F28D 1/053
F28D 15/04
F28D 1/04

Abstract:

An apparatus includes first and second microchannel heat exchangers and first and second pipes. The first heat exchanger includes a first inlet, a second inlet, a first tube, a second tube, a first outlet, and a second outlet. Refrigerant at the first inlet is directed through the first tube to the first outlet and the first pipe. Refrigerant at the second inlet is directed through the second tube to the second outlet and the second pipe. The second heat exchanger includes a third inlet, a fourth inlet, a third tube, a fourth tube, a third outlet, and a fourth outlet. The third inlet directs refrigerant from the first pipe through the third tube towards the third outlet. The fourth inlet directs the refrigerant from the second pipe through the fourth tube towards the fourth outlet. The first pipe overlaps the second pipe between the two heat exchangers.

US Patent:

20210048251, Feb 18, 2021

Filed:

Aug 16, 2019

Appl. No.:

16/542627

Inventors:

- Richardson TX, US
Hong Lin - Plano TX, US

International Classification:

F28D 1/053
F28D 1/04
F28D 15/04

Abstract:

An apparatus includes first and second microchannel heat exchangers and first and second pipes. The first heat exchanger includes a first inlet, a second inlet, a first tube, a second tube, a first outlet, and a second outlet. Refrigerant at the first inlet is directed through the first tube to the first outlet and the first pipe. Refrigerant at the second inlet is directed through the second tube to the second outlet and the second pipe. The second heat exchanger includes a third inlet, a fourth inlet, a third tube, a fourth tube, a third outlet, and a fourth outlet. The third inlet directs refrigerant from the first pipe through the third tube towards the third outlet. The fourth inlet directs the refrigerant from the second pipe through the fourth tube towards the fourth outlet. The first pipe overlaps the second pipe between the two heat exchangers.

US Patent:

20160010885, Jan 14, 2016

Filed:

Sep 21, 2015

Appl. No.:

14/860274

Inventors:

- Richardson TX, US
Aylan Him - Coppell TX, US
Hong Lin - Plano TX, US

International Classification:

F24F 7/007
F17D 3/00

Abstract:

A heating, ventilation, and air-conditioning (HVAC) system comprises a plurality of sensors, a plurality of tandem compressor assemblies that each comprise a first compressor and a second compressor, and a controller communicatively coupled to the plurality of sensors and the plurality of tandem compressor assemblies. The controller determines an increase in a cooling demand of a structure associated with the HVAC system based on data received from at least one of the plurality of sensors. Also, the controller compares an ambient temperature outside of the structure to a first threshold. In response to determining that the ambient temperature is greater than the first threshold, the controller operates the HVAC system in a first mode and in response to determining that the ambient temperature is less than the first threshold, the controller operates the HVAC system in a second mode.