Jason D Scarcella from 8334 Anglers Clb, Cicero, NY 13039, age 53, Phone: 3156999690

Us Patents

Lubricant Return Schemes For Use In Refrigerant Cycle
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US Patent:

7104076, Sep 12, 2006
Filed:

Jun 24, 2004
Appl. No.:

10/876052
Inventors:

Jason D. Scarcella - Cicero NY, US
Alexander Lifson - Manlius NY, US
Assignee:

Carrier Corporation - Farmington CT
International Classification:

F25B 43/02
US Classification:

62 84, 62470
Abstract:

A control algorithm is developed which takes corrective action in the event that system conditions indicate there may be an inadequate flow of lubricant in the system. In particular, if a discharge pressure is below a predetermined amount or if the suction modulation valve is throttled, there is a possibility of inadequate lubricant flow. The system control then turns off the condenser fan, and if that first step is not sufficient, may also turn on an evaporator heater and then control a suction modulation valve. A fail safe control loop also takes effect if the condition sensor appears to have failed.

Adjustment Of Compressor Operating Limits
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US Patent:

8109102, Feb 7, 2012
Filed:

May 9, 2007
Appl. No.:

12/444783
Inventors:

Alexander Lifson - Manlius NY, US
Michael F. Taras - Fayetteville NY, US
Jason D. Scarcella - Cicero NY, US
Assignee:

Carrier Corporation - Syracuse NY
International Classification:

F25B 1/00
US Classification:

62115, 62129
Abstract:

A refrigerant system includes a compressor that has safe operating limits that are also built into a refrigerant system control to protect the compressor. Under certain conditions, these safe operational limits may be changed to allow the compressor to operate beyond the safety limits at least for a period of time.

Refrigeration Unit With Integrated Structural Condenser Coil Support
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US Patent:

8117860, Feb 21, 2012
Filed:

Dec 22, 2006
Appl. No.:

12/445430
Inventors:

Dennis M. Stone - Cicero NY, US
Thomas A. Anderson - Cato NY, US
Jason Scarcella - Cicero NY, US
Assignee:

Carrier Corporation - Farmington CT
International Classification:

F25D 23/12
US Classification:

622591, 62263
Abstract:

A refrigeration unit for a shipping container exposed to end loads and rack loads. The refrigeration unit has a frame, a back panel, a plurality of structural support brackets secured to the back panel, a condenser cover secured to the plurality of structural support brackets so that the condenser cover, the plurality of structural support brackets, the frame, and the back panel form a structural member sufficient to support end loads and rack loads. The refrigeration unit also has a condenser coil having a first end and a second end, a first coil support member secured to one of the structural support brackets and secured around the first end, and a second coil support member secured to one of the structural support brackets and secured around the second end. The first and second coil support members maintain the condenser coil unstressed from the end loads and rack loads.

Refrigeration Circuit
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US Patent:

8230694, Jul 31, 2012
Filed:

Oct 13, 2006
Appl. No.:

12/445411
Inventors:

Jason Scarcella - Cicero NY, US
William J. Heffron - Lafayette NY, US
Assignee:

Carrier Corporation - Farmington CT
International Classification:

F25B 45/00
US Classification:

62292, 62149
Abstract:

A refrigeration circuit having a system charge and a system charge storage area. The system charge area has a condenser having a set of micro-channel heat exchanger coils. The condenser is appropriately sized to receive a first volume of the system charge. There is a compressor for compressing the system charge from an expanded state to a compressed state. There is a sealed refrigerant charge holding area fluidly connected to the condenser and the compressor. The sealed refrigerant charge holding area is appropriately sized for storing a second volume of the system charge during a system pumpdown. A receiver is fluidly connected to the sealed refrigerant charge holding area. The receiver is appropriately sized to receive a third volume of the system charge during a system pumpdown.

Compressor Reverse Rotation Of Variable Duration On Start-Up
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US Patent:

8292599, Oct 23, 2012
Filed:

Mar 13, 2007
Appl. No.:

12/530486
Inventors:

Alexander Lifson - Manlius NY, US
Jason Scarcella - Cicero NY, US
Assignee:

Carrier Corporation - Farmington CT
International Classification:

F04B 17/00
F04B 35/00
US Classification:

417325, 417 12, 417 14, 4174104, 418 551
Abstract:

In a method of operating a compressor at startup, the compressor is rotated in reverse for a brief period of time. The compressor is of a type that does not compress liquid when rotated in reverse. The purpose is to boil off the liquid refrigerant from the oil by heating and agitating the mixture of oil and refrigerant in the oil sump. This results in a much more benign forward start as less refrigerant is drawn into the compressor pump and the amount of oil pumped out of the compressor on start up is minimized. Also, the viscosity of oil is increased and lubrication of the bearings is improved. After a short period of time reverse rotation is stopped and the compressor can start rotating in the forward direction. The short period of time of reverse rotation is varied based upon system conditions. In one embodiment, the variation can occur by reducing the reverse run time as ambient temperature increases.

Refrigerant Vapor Compression System And Method Of Transcritical Operation
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US Patent:

8424326, Apr 23, 2013
Filed:

Apr 24, 2007
Appl. No.:

12/596883
Inventors:

Biswajit Mitra - Charlotte NC, US
Yu H. Chen - Manlius NY, US
Jason Scarcella - Cicero NY, US
Suresh Duraisamy - Liverpool NY, US
Lucy Yi Liu - Fayetteville NY, US
Assignee:

Carrier Corporation - Farmington CT
International Classification:

F25B 41/00
F25B 39/04
F25B 1/10
US Classification:

621961, 62509, 62510
Abstract:

A refrigerant vapor compression system includes a flash tank economizer defining a separation chamber is disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger. A primary expansion valve is interdisposed in the refrigerant circuit in operative association with and upstream of the refrigerant heat absorption heat exchanger and a secondary expansion valve is interdisposed in the refrigerant circuit in operative association and upstream of the flash tank economizer. A refrigerant vapor injection line establishes refrigerant flow communication between an upper portion of the separation chamber and an intermediate pressure stage of the system's compression device and a suction pressure portion of the refrigerant circuit. A refrigerant liquid injection line establishes refrigerant flow communication between a lower portion of said separation chamber and an intermediate pressure stage of the compression device and a suction pressure portion of the refrigerant circuit.

Refrigerant Vapor Compression System With Lubricant Cooler
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US Patent:

8424337, Apr 23, 2013
Filed:

Jan 17, 2008
Appl. No.:

12/745772
Inventors:

Jason Scarcella - Cicero NY, US
Kursten Lamendola - Chittenango NY, US
Assignee:

Carrier Corporation - Farmington CT
International Classification:

F25B 43/02
US Classification:

62470
Abstract:

A refrigerant vapor compression system is provided that includes a refrigerant circuit and a lubricant cooler circuit. The lubricant cooler circuit is operatively associated with the compression device for cooling a lubricant associated with the compression device and includes a heat exchanger coil disposed downstream of the refrigerant heat absorption heat exchanger with respect to the flow of heating medium. The lubricant cooler heat exchanger defines a flow path for passing the lubricant in heat exchange relationship with the cooled heating medium leaving the refrigerant heat absorption heat exchanger.

Heater Cycling For Improved Oil Return
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US Patent:

20050166616, Aug 4, 2005
Filed:

Jan 30, 2004
Appl. No.:

10/768781
Inventors:

Alexander Lifson - Manlius NY, US
Jason Scarcella - Cicero NY, US
International Classification:

F25B029/00
US Classification:

062173000
Abstract:

A method comprises the steps of (a) providing a refrigeration unit having a refrigerated or heated space and at least one measured operating parameter, (b) providing heat to the refrigerated space when the at least one measured operating parameter exceeds a first threshold, (c) terminating provision of heat when the at least one measured operating parameter exceeds a second threshold, and repeating steps b-c when the at least one operating parameter falls below the first threshold. In using this method, the unit can be operated continuously, with substantially higher refrigerant mass flow and evaporator pressure then in the prior art. Higher refrigerant mass flow rate and higher evaporator pressure improve oil return to the compressor, thus reducing the like hood of compressor damage due to oil pump out.