公开(公告)号：US20230272804A1

公开(公告)日：2023-08-31

申请号：US18018235

申请日：2021-07-30

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Paul William Snell ,  Bryson Lee Sheaffer ,  Florin Valeriu Iancu

IPC: F04D29/28 ,  F04D17/10

CPC classification number: F04D29/284 ,  F04D17/10

Abstract: A compressor for a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system includes an impeller that has a hub defining an impeller tip, a plurality of blades coupled to the hub and defining a plurality of flow paths configured to direct a primary flow of working fluid therethrough, and a shroud coupled to the plurality of blades. The shroud includes a shroud tip disposed upstream of the impeller tip relative to a flow direction of the primary flow of working fluid through the plurality of flow paths.

公开(公告)号：US12270586B2

公开(公告)日：2025-04-08

申请号：US17802489

申请日：2021-02-26

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Bryson Lee Sheaffer

IPC: F25B49/02 ,  F25B39/00 ,  F25B39/04

Abstract: A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a heat exchanger with a shell having a first pass configured to place a fluid in a heat exchange relationship with a first refrigerant and a second pass configured to place the fluid in a heat exchange relationship with a second refrigerant. The heat exchanger also includes a water box coupled to the shell and configured to direct the fluid from the first pass to the second pass. The HVAC&R system also includes a fluid mixing manifold disposed within the water box, where the fluid mixing manifold is configured to collect and mix a plurality of flows of the fluid from within the water box to generate a mixed fluid, and a sensor coupled to the fluid mixing manifold, where the sensor is configured to measure a parameter of the mixed fluid.

公开(公告)号：US20230147950A1

公开(公告)日：2023-05-11

申请号：US17802484

申请日：2021-02-26

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Bryson Lee Sheaffer ,  Jordan Quinn Steiner ,  Paul William Snell ,  Curtis Christian Crane

IPC: F25B49/02 ,  F25B41/20 ,  F04D29/44 ,  F04D27/00

CPC classification number: F25B49/022 ,  F04D27/002 ,  F04D29/442 ,  F25B41/20 ,  F25B31/026

Abstract: A compressor includes a diffuser passage configured to receive refrigerant flow from an impeller of the compressor, where the diffuser passage is at least partially defined by a compressor discharge plate of the compressor. The compressor also includes a variable geometry diffuser positioned within the diffuser passage and configured to adjust a dimension of a refrigerant flow path through the diffuser passage, an actuator coupled to the variable geometry diffuser and configured to adjust a position of the variable geometry diffuser within the diffuser passage, and a controller configured to regulate operation of the actuator. The controller is configured to instruct the actuator to adjust the position of the variable geometry diffuser from a first position to a second position using a first force and to adjust the position of the variable geometry diffuser from the second position to a third position using a second force less than the first force, where the variable geometry diffuser abuts the compressor discharge plate in the third position.

公开(公告)号：US12168984B2

公开(公告)日：2024-12-17

申请号：US18018235

申请日：2021-07-30

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Paul William Snell ,  Bryson Lee Sheaffer ,  Florin Valeriu Iancu

IPC: F04D29/28 ,  F04D17/10 ,  F25B1/00 ,  F25B1/04 ,  F25B25/00 ,  F25B31/02

Abstract: A compressor for a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system includes an impeller that has a hub defining an impeller tip, a plurality of blades coupled to the hub and defining a plurality of flow paths configured to direct a primary flow of working fluid therethrough, and a shroud coupled to the plurality of blades. The shroud includes a shroud tip disposed upstream of the impeller tip relative to a flow direction of the primary flow of working fluid through the plurality of flow paths.

公开(公告)号：US20230143887A1

公开(公告)日：2023-05-11

申请号：US17802489

申请日：2021-02-26

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Bryson Lee Sheaffer

IPC: F25B49/02 ,  F25B39/00

CPC classification number: F25B49/027 ,  F25B39/00 ,  F25B39/04

Abstract: A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a heat exchanger with a shell having a first pass configured to place a fluid in a heat exchange relationship with a first refrigerant and a second pass configured to place the fluid in a heat exchange relationship with a second refrigerant. The heat exchanger also includes a water box coupled to the shell and configured to direct the fluid from the first pass to the second pass. The HVAC&R system also includes a fluid mixing manifold disposed within the water box, where the fluid mixing manifold is configured to collect and mix a plurality of flows of the fluid from within the water box to generate a mixed fluid, and a sensor coupled to the fluid mixing manifold, where the sensor is configured to measure a parameter of the mixed fluid.