Justin R Kauffman

US Patent:

20100276130, Nov 4, 2010

Filed:

Jan 11, 2009

Appl. No.:

12/740189

Inventors:

Paul de Larminat - Nantes, FR
Jay A. Kohler - York PA, US
Mustafa Kemal Yanik - York PA, US
William F. McQuade - New Cumberland PA, US
Justin Kauffman - York PA, US

Assignee:

JOHNSON CONTROLS TECHNOLOGY COMPANY - Holland MI

International Classification:

F28F 9/00

US Classification:

165157

Abstract:

A vapor compression system including a heat exchanger and a heat exchanger for use in a vapor compression system, the heat exchanger including a shell (), a hood (), a tube bundle (), a distributor (), and a passageway are disclosed. The shell () can include an outlet () configured to permit passage of vapor () from the shell (), the hood () can be configured and positioned to cover the tube bundle () and the distributor (), the tube bundle () can extend substantially horizontally in the shell (), the distributor () can be configured to apply a fluid to the tube bundle (), and the passageway can be configured and positioned to receive vapor () and provide a flow path for the vapor () to the outlet ().

US Patent:

20130269916, Oct 17, 2013

Filed:

Jun 7, 2013

Appl. No.:

13/912634

Inventors:

Justin P. KAUFFMAN - York PA, US

International Classification:

F28F 9/00

US Classification:

165160

Abstract:

A distributor for use in a vapor compression system includes an enclosure configured to be positioned in a heat exchanger having a tube bundle including a plurality of tubes extending substantially horizontally in the heat exchanger. At least one distribution device formed in an end of the enclosure positioned to face the tube bundle, the at least one distribution device configured to apply a fluid entering the distributor onto the tube bundle. The enclosure has an aspect ratio between about 1/2:1 and about 10:1.

US Patent:

20210207861, Jul 8, 2021

Filed:

May 30, 2018

Appl. No.:

17/059963

Inventors:

Shimin Sheng - Wuxi, CN
Xiuping Su - Wuxi, CN
Shenglong Wang - York PA, US
- Auburn Hills MI, US
Justin Patrick Kauffman - York PA, US

International Classification:

F25B 49/02
F25B 1/00

Abstract:

A chiller includes an evaporator, a compressor including a prime mover, a first pressure sensor that detects a first pressure in the evaporator, a second pressure sensor that detects a second pressure in a condenser, and a controller. The controller determines a predicted energy level of the compressor based on the first pressure and the second pressure, the predicted energy level associated with liquid droplet flow into the compressor, compares the predicted energy level to an operating energy level, and modifies the at least one of the input power and the input current to the prime mover based on the comparison satisfying a modification condition.

US Patent:

20200300524, Sep 24, 2020

Filed:

Mar 29, 2017

Appl. No.:

16/088790

Inventors:

- Aubum Hills MI, US
Curtis C. Crane - York PA, US
Justin P. Kauffman - York PA, US

International Classification:

F25B 49/02
G01F 1/684

Abstract:

The present disclosure relates to a sensor disposed in a conduit on a suction side of a compressor, wherein the conduit is configured to convey a fluid and a controller communicatively coupled to the sensor. The controller includes a processor and a memory, the memory is configured to store instructions to be performed by the processor, and the controller is configured to receive one or more indications from the sensor of an amount of power consumed by an active sensor component, determine a presence of liquid in the fluid based at least on the one or more indications, and control a device based on the presence of liquid in the fluid.

US Patent:

20190212040, Jul 11, 2019

Filed:

Mar 12, 2019

Appl. No.:

16/351078

Inventors:

- Aubrn Hills MI, US
Justin P. Kauffman - York PA, US
Jeb W. Schreiber - Stewartstown PA, US
Chenggang Wu - Wuxi City, CN
Steven Wang - Wuxi City, CN
John Trevino, Jr. - York PA, US

International Classification:

F25B 41/00
F15D 1/04
F25B 41/06
F04D 17/10
F25B 1/053
F04D 29/42

Abstract:

A compressor includes an inlet and the inlet includes a flange and an impeller eye. The flange is connected to a suction line that transfers a refrigerant into the compressor via the impeller eye. The refrigerant flows into the compressor with an amount of swirl and a pressure loss. The suction line includes a geometry that includes a constantly decreasing cross-sectional area in a direction towards the compressor. The geometry of the suction line is configured to reduce the amount of swirl and the pressure loss.

US Patent:

20180274831, Sep 27, 2018

Filed:

Mar 23, 2018

Appl. No.:

15/934687

Inventors:

- Auburn Hills MI, US
Justin P. Kauffman - York PA, US
Jeb W. Schreiber - Stewartstown PA, US
Chenggang Wu - Wuxi City, CN
Steven Wang - Wuxi City, CN
John Trevino, JR. - York PA, US

International Classification:

F25B 41/00
F15D 1/04
F25B 41/06

Abstract:

A compressor includes an inlet and the inlet includes a flange and an impeller eye. The flange is connected to a suction line that transfers a refrigerant into the compressor via the impeller eye. The refrigerant flows into the compressor with an amount of swirl and a pressure loss. The suction line includes a geometry that includes a constantly decreasing cross-sectional area in a direction towards the compressor. The geometry of the suction line is configured to reduce the amount of swirl and the pressure loss.

US Patent:

20160238291, Aug 18, 2016

Filed:

Apr 25, 2016

Appl. No.:

15/137759

Inventors:

- Holland MI, US
Jay A. KOHLER - York PA, US
Paul DE LARMINAT - Nantes, FR
Mustafa Kemal YANIK - York PA, US
William F. MCQUADE - New Cumberland PA, US
Justin P. KAUFFMAN - York PA, US
Soren Bierre POULSEN - Hojbjerg, DK
Lee Li WANG - Shanghai, CN
Satheesh KULANKARA - York PA, US

International Classification:

F25B 41/04

Abstract:

An evaporator () in a vapor compression system () () includes a shell (), a first tube bundle (); a hood (); a distributor (); a first supply line (); a second supply line (); a valve () positioned in the second supply line (); and a sensor (). The distributor () is positioned above the first tube bundle (). The hood () covers the first tube bundle (). The first supply line () is connected to the distributor () and an end of the second supply line () is positioned near the hood (). The sensor () is configured and positioned to sense a level of liquid refrigerant () in the shell. The valve () regulates flow in the second supply line in response to the level of liquid refrigerant () from the sensor ().

US Patent:

20140328667, Nov 6, 2014

Filed:

Nov 4, 2013

Appl. No.:

14/368330

Inventors:

Susan J. NENSTIEL - , US
- Holland MI, US
Justin P. Kauffman - York PA, US
Kurt F. Nenstiel (Deceased) - York PA, US

International Classification:

F04D 29/46

US Classification:

415 1, 415148, 415 13

Abstract:

An improved variable geometry diffuser (VGD) mechanism for use with a centrifugal compressor. This VGD mechanism extends substantially completely into the diffuser gap so that the VGD mechanism may be used more fully to control other operational functions. The VGD mechanism may be used to minimize compressor backspin and associated transient loads during compressor shut down by preventing a reverse flow of refrigerant gas through the diffuser gap during compressor shutdown, which is prevented because the diffuser gap is substantially blocked by the full extension of the diffuser ring. During start-up, transient surge and stall also can be effectively eliminated as gas flow through the diffuser gap can be impeded as load and impeller speed increase, thereby alleviating the problems caused by startup loads at low speeds. The VGD mechanism can be used for capacity control as well so as to achieve more effective turndown at low loads.