公开(公告)号：US20190162476A1

公开(公告)日：2019-05-30

申请号：US16098312

申请日：2016-05-03

Applicant: Carrier Corporation

Inventor： Jeremy Wallet-Laily ,  Charbel Rahhal

IPC: F28D1/04 ,  F28D1/02 ,  F28F9/00 ,  F28F21/08 ,  F28D1/047

Abstract: A heat exchanger arrangement (2) comprises at least one heat exchanger (4) including at least one substantially horizontally oriented manifold (6a, 6b) forming an upper side of the at least one heat exchanger (4), the at least one manifold (6a, 6b) having lateral end portions (8); and a support structure (10) including a main portion comprising, at least partially, a metallic material, and manifold support portions (14) associated to respective lateral end portions (8) of the at least one manifold (6a, 6b). The manifold support portions (14) are made at least partially from a non-metallic material and configured to receive the lateral end portions (8) of the at least one manifold (6a, 6b) for preventing the at least one manifold (6a, 6b) from contacting any metallic portions of the support structure (10).

公开(公告)号：US20180299205A1

公开(公告)日：2018-10-18

申请号：US15767064

申请日：2015-10-12

Applicant: Charbel RAHHAL ,  Carrier Corporation

Inventor： Charbel Rahhal ,  Kazuo Saito ,  Michael F. Taras ,  Tobias H. Sienel ,  Arindom Joardar ,  Lee G. Tetu ,  Jackie S. Anderson

IPC: F28D1/047

Abstract: A heat exchanger is provided including a first header, a second header, and a plurality of heat exchange tubes arranged in a spaced parallel relationship and fluidly coupling the first and second headers. At least one of the first header, second header and the plurality of heat exchange tubes includes a bend. The heat exchanger having an aspect ratio between about 2 and 6 after formation of the bend.

公开(公告)号：US20170268808A1

公开(公告)日：2017-09-21

申请号：US15505445

申请日：2014-08-21

Applicant: Charbel RAHHAL ,  Carrier Corporation

Inventor： Charbel Rahhal ,  Richard G. Lord ,  Jack Leon Esformes

IPC: F25B40/06 ,  F25B41/00 ,  F25B1/00 ,  F25B43/02

CPC classification number: F25B40/06 ,  F25B1/00 ,  F25B40/00 ,  F25B41/00 ,  F25B43/02 ,  F25B2341/0012 ,  F25B2400/23

Abstract: A chiller system is provided including a vapor compression circuit consisting of a fluidly coupled compressor, condenser, expansion valve, and evaporator. A refrigerant circulates through the vapor compression circuit. The evaporator is a direct exchange heat exchanger. Refrigerant provided at an outlet of the evaporator is a two-phase mixture including liquid refrigerant and vapor refrigerant. The vapor refrigerant comprises less than or equal to 85% of the two-phase mixture. A refrigerant to refrigerant heat exchanger is fluidly coupled to the circuit. The refrigerant to refrigerant heat exchanger is configured to convert the vapor refrigerant provided at the outlet of the evaporator into a superheated vapor.

公开(公告)号：US20240384879A1

公开(公告)日：2024-11-21

申请号：US18659892

申请日：2024-05-09

Applicant: Carrier Corporation

Inventor： Danny Nguyen ,  Peter Bushnell ,  Ryan Dygert ,  Charbel Rahhal ,  Michael Stark

IPC: F24F1/0029

Abstract: A draw-through fan assembly and heat exchanger system configuration is disclosed, comprising a fan deck adapted to mount the fan assembly, an axial fan with a rotating shroud, a heat exchanger section located upstream of the fan and the fan assembly, and a J-shaped inlet bell mouth configured upstream of the fan deck that is located within a space between heat exchangers. Further, a motor associated with the fan assembly and one or more motor struts are positioned upstream of the fan. The fan is mounted on the bottom of the struts, such that once the fan-mounted assembly is configured at the outlet of the heat exchangers, the bell mouth and fan remain below the fan deck and are disposed in a space between the heat exchangers.

公开(公告)号：US11604012B2

公开(公告)日：2023-03-14

申请号：US17056327

申请日：2018-05-18

Applicant: Carrier Corporation ,  Charbel Rahhal

Inventor： Charbel Rahhal

IPC: F25B31/00

Abstract: A compressor arrangement includes two or more compressors (16a, 16b) arranged in a fluidly parallel configuration and a lubricant sump (38) containing a volume of lubricant operably connected to the two or more compressors. A lubricant sump pressure (P) is greater than a lubricant cavity pressure of each compressor (Pa, Pb, Pc) of the two or more compressors at all operating conditions of the two or more compressors. An equilibrium lubricant line (40) connects the lubricant sump to the two or more compressors to convey lubricant from the lubricant sump to a lubricant cavity (42) of each compressor of the two or more compressors.

公开(公告)号：US20190145681A1

公开(公告)日：2019-05-16

申请号：US16092700

申请日：2016-04-15

Applicant: Carrier Corporation

Inventor： Stefano Bovio ,  Charbel Rahhal

IPC: F25B49/02 ,  F25B1/04 ,  H02P5/74

Abstract: A compressor unit (2) for use in a refrigeration circuit, comprises at least two compressors (8, 10); and a common variable frequency drive (6), configured to be connected to a three phase grid voltage supply (4); each compressor (8, 10) having an inlet port (12) configured to be in refrigerant communication, via a suction line, with an outlet of an evaporator; an outlet port (14) configured to be in refrigerant communication, via a pressure line, to an inlet of a condenser; a compressor motor (18), particularly an alternating current induction motor, with a three phase supply line (32-1, 32-2); a power modulation means (24) for controlling the power of the compressor (8, 10) according to its load needs; wherein each compressor (8, 10) is switchable, independently from the respective other compressor(s) (8, 10), to be connected, during start-up and acceleration of the respective compressor (8, 10), to the common variable frequency drive (6), and to be connected, during rated-speed operation of the respective compressor (8, 10), to a common three phase grid voltage supply (4).

公开(公告)号：US11506429B2

公开(公告)日：2022-11-22

申请号：US16875317

申请日：2020-05-15

Applicant: Carrier Corporation

Inventor： Raphael Muller ,  Charbel Rahhal ,  Jeremy Wallet-Laily ,  Antoine Barriere

IPC: F25B31/00 ,  F25B21/02 ,  F25B1/047

Abstract: A refrigeration apparatus (1) includes a main refrigerant circuit (2) including a positive displacement compressor (4), a condenser (6), an expansion valve (8), and an evaporator (10), through which a refrigerant circulates successively in a closed loop circulation, a lubrication refrigerant line (18) connected to the main refrigerant circuit (2) between the condenser (6) and the expansion valve (8) or to the condenser (6), in which circulates a portion of the refrigerant of the main refrigerant circuit (2) and connected to the compressor (4) for lubrication of said compressor (4) with the refrigerant, at least one lubrication refrigerant storing cavity (70) connected to the lubrication refrigerant line (18), the lubrication refrigerant storing cavity (70) being configured to store liquid refrigerant for lubrication of the compressor (4) said at least one lubrication refrigerant storing cavity (70) being provided within the compressor (4).

公开(公告)号：US11408653B2

公开(公告)日：2022-08-09

申请号：US16778894

申请日：2020-01-31

Applicant: Carrier Corporation

Inventor： Michel Grabon ,  Charbel Rahhal

IPC: F25B39/02 ,  F25B39/00

Abstract: A heat exchanger, such as a flooded evaporator, comprises a shell extending along a longitudinal axis (X), an inlet pipe and an outlet pipe, through which respectively enters (F1) and exits (F2) a refrigerant flow, and a bundle of pipes crossing the shell along the longitudinal axis (X), and comprising a refrigerant flow diffuser provided inside the shell downstream the inlet pipe, the refrigerant flow diffuser extending along the longitudinal axis (X) and comprising openings through which the refrigerant flows. The refrigerant flow diffuser comprises a moving element and a stationary element, the moving element being movable with respect to the stationary element under action of a pressure force (FP) exerted by the refrigerant flow so that the refrigerant flow going through the openings is adjusted and a differential refrigerant pressure between refrigerant pressure downstream (P2) and upstream (P1) the refrigerant flow diffuser is kept constant.

公开(公告)号：US20210254870A1

公开(公告)日：2021-08-19

申请号：US16973203

申请日：2018-07-27

Applicant: Jérémy WALLET-LAÏLY ,  Carrier Corporation

Inventor： Jeremy Wallet-Laïly ,  Charbel Rahhal ,  Francois Lambert ,  Aurelien Jud

IPC: F25B39/00 ,  F25B43/02 ,  F04D29/66

Abstract: This refrigerant vessel component (2, 4, 7) for a refrigeration circuit (100), comprises a shell (10) extending along a longitudinal axis (X) delimiting an internal volume (V), in which circulates a refrigerant fluid (R), whereas the refrigerant vessel component (2) comprises an inner shell (20) located radially inside the shell (10) and extending on at least a portion of the circumference of the shell (10), and whereas the inner shell (20) is at least partly formed of perforated material.

公开(公告)号：US20210207854A1

公开(公告)日：2021-07-08

申请号：US17058815

申请日：2018-09-12

Applicant: Carrier Corporation

Inventor： Charbel Rahhal

IPC: F25B13/00 ,  F25B45/00 ,  F25B41/31

Abstract: A receiver for a heating, air conditioning, and refrigeration system includes a tube extending along a tube axis from a first receiver end to a second receiver end opposite the first receiver end, and a single receiver port. The receiver port is configured as both a receiver inlet and a receiver outlet. A heating, air conditioning, and refrigeration system includes a compressor configured to compress a refrigerant flow, a refrigerant pathway configured to convey the refrigerant flow through the heating, air conditioning, and refrigeration system, and a receiver fluidly connected to the refrigerant pathway. The receiver includes a tube extending along a tube axis from a first receiver end to a second receiver end opposite the first receiver end, and a single receiver port. The receiver port is configured as both a receiver inlet and a receiver outlet, and is connected to the refrigerant pathway via the single receiver port.