公开(公告)号：US10823444B2

公开(公告)日：2020-11-03

申请号：US15897483

申请日：2018-02-15

Applicant: Johnson Controls Technology Company

Inventor： Hendrikus C. Van Eldik ,  Nathan B. Emlen ,  John P. Patterson ,  Philip L. Bushong ,  Troy L. Wert ,  Roy M. Rader ,  Theodore J. Houck, III

IPC: F24F11/52 ,  G05B19/042 ,  F24F11/72 ,  F25B49/02 ,  F24F11/86 ,  F24F11/88 ,  F24F140/12

Abstract: A pressure control device for controlling a compressor includes a pressure sensor configured to measure pressure of a pressure line and a processing circuit. The processing circuit is configured to receive the measured pressure of the pressure line from the pressure sensor and control the compressor based on a set-point and the measured pressure. The pressure control device includes a mechanical switch sensitive to the pressure of the pressure line and configured to move between an open position and a closed position responsive to the pressure of the pressure line. Movement of the mechanical switch into one of the open position or the closed position causes the compressor to turn off and overrides the control of the compressor by the processing circuit.

公开(公告)号：US20180283724A1

公开(公告)日：2018-10-04

申请号：US15897483

申请日：2018-02-15

Applicant: Johnson Controls Technology Company

Inventor： Hendrikus C. Van Eldik ,  Nathan B. Emlen ,  John P. Patterson ,  Philip L. Bushong ,  Troy L. Wert ,  Roy M. Rader ,  Theodore J. Houck, III

IPC: F24F11/72 ,  G05B19/042 ,  F25B49/02

CPC classification number: F24F11/72 ,  F24F11/52 ,  F24F11/86 ,  F24F11/88 ,  F24F2140/12 ,  F25B49/02 ,  F25B49/022 ,  F25B49/025 ,  F25B2341/06 ,  F25B2500/07 ,  F25B2600/0251 ,  F25B2600/027 ,  F25B2600/2515 ,  F25B2600/2517 ,  F25B2600/2519 ,  F25B2600/2525 ,  F25B2700/19 ,  F25B2700/193 ,  G05B19/042 ,  G05B2219/2614

Abstract: A pressure control device for controlling a compressor includes a pressure sensor configured to measure pressure of a pressure line and a processing circuit. The processing circuit is configured to receive the measured pressure of the pressure line from the pressure sensor and control the compressor based on a set-point and the measured pressure. The pressure control device includes a mechanical switch sensitive to the pressure of the pressure line and configured to move between an open position and a closed position responsive to the pressure of the pressure line. Movement of the mechanical switch into one of the open position or the closed position causes the compressor to turn off and overrides the control of the compressor by the processing circuit.