公开(公告)号：WO1995023944A1

公开(公告)日：1995-09-08

申请号：PCT/US1995002190

申请日：1995-02-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  JASTER, Heinz

IPC: F25B41/06

CPC classification number: F25B41/065 ,  F25B5/04 ,  F25B2341/0652 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/15 ,  F25B2700/04 ,  Y02B30/72

Abstract: Pulse width modulation is used to control the flow rate through a solenoid expansion valve (24) in a refrigeration system (10) using a dual evaporator, two-stage cycle. The refrigeration cycle (10) includes a phase separator (22) which receives two-phase refrigerant from the low temperature evaporator (20) and supplies liquid refrigerant to the pulse width modulated solenoid valve (24). A liquid level sensor (34) is disposed in the phase separator (22), and a controller (32) for controlling the duty cycle of the pulse width modulated solenoid valve (24) is provided to receive input from the liquid level sensor (34). The liquid level sensor (34) can be of the type which provides a continuously variable signal as a function of liquid level, or it can be a liquid level switch which controls valve duty cycle on the basis of whether the phase separator liquid level is above or below a set level. Alternatively, two liquid level switches (34a, 34b) can be provided.

Abstract translation: 脉冲宽度调制用于通过使用双蒸发器，两级循环来控制通过制冷系统（10）中的螺线管膨胀阀（24）的流量。 制冷循环（10）包括从低温蒸发器（20）接收二相制冷剂并将液体制冷剂供给到脉宽调制电磁阀（24）的相分离器（22）。 液位传感器（34）设置在相分离器（22）中，并且用于控制脉宽调制电磁阀（24）的占空比的控制器（32）用于接收来自液位传感器（34）的输入 ）。 液面传感器（34）可以是提供作为液面的函数的连续可变信号的类型，或者它可以是液位开关，其基于相分离器液面高度是否控制阀占空比 或低于设定水平。 或者，可以提供两个液位开关（34a，34b）。

公开(公告)号：EP0697087B1

公开(公告)日：1999-08-04

申请号：EP95911853.0

申请日：1995-02-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： JASTER, Heinz

IPC: F25B41/06 ,  F25B5/04

CPC classification number: F25B41/065 ,  F25B5/04 ,  F25B2341/0652 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/15 ,  F25B2700/04 ,  Y02B30/72

Abstract: Pulse width modulation is used to control the flow rate through a solenoid expansion valve (24) in a refrigeration system (10) using a dual evaporator, two-stage cycle. The refrigeration cycle (10) includes a phase separator (22) which receives two-phase refrigerant from the low temperature evaporator (20) and supplies liquid refrigerant to the pulse width modulated solenoid valve (24). A liquid level sensor (34) is disposed in the phase separator (22), and a controller (32) for controlling the duty cycle of the pulse width modulated solenoid valve (24) is provided to receive input from the liquid level sensor (34). The liquid level sensor (34) can be of the type which provides a continuously variable signal as a function of liquid level, or it can be a liquid level switch which controls valve duty cycle on the basis of whether the phase separator liquid level is above or below a set level. Alternatively, two liquid level switches (34a, 34b) can be provided.

公开(公告)号：EP1137823A2

公开(公告)日：2001-10-04

申请号：EP99971215.1

申请日：1999-11-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： FARR, Howard, John ,  BETSCHER, Keith, Humphries ,  WORTHING, Richard, Roy, Jr. ,  SANGEETA, D. ,  VAKIL, Himanshu, Bachubhai ,  JOHNSON, Curtis, Alan ,  CARTIER, Thomas, Joseph, Jr. ,  STOKES, Edward, Brittain ,  JASTER, Heinz

IPC: C23G5/04 ,  C23G5/02

CPC classification number: B08B7/0021 ,  C23G3/00 ,  C23G5/02 ,  C23G5/04 ,  F01D5/005 ,  F01D5/288

Abstract: Apparatus for stripping ceramic coatings from the surfaces of articles. The apparatus includes a dedicated pressure vessel, such as an autoclave, which is maintained at an elevated temperature. Caustic solution is preheated to a first elevated temperature before injecting it into the autoclave, and the caustic solution is filtered and cooled after use in the autoclave. The articles are stripped of coating by maintaining the articles at an elevated temperature and pressure for a predetermined time. Various options include the use of analytical equipment to maintain the chemistry of the caustic solution and use of a volatile organic solution to prepressurize the autoclave and shorten cycle time. The autoclave is maintained in a nitrogen chamber to minimize the risks associated with volatile components. The articles are transferred to a separate pressure vessel after completion of the stripping operation so that the autoclave used for stripping can be maintained at an elevated temperature, thereby shortening the cycle time for stripping of additional articles.

公开(公告)号：EP1137823B1

公开(公告)日：2005-12-28

申请号：EP99971215.1

申请日：1999-11-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： FARR, Howard, John ,  BETSCHER, Keith, Humphries ,  WORTHING, Richard, Roy, Jr. ,  SANGEETA, D. ,  VAKIL, Himanshu, Bachubhai ,  JOHNSON, Curtis, Alan ,  CARTIER, Thomas, Joseph, Jr. ,  STOKES, Edward, Brittain ,  JASTER, Heinz

IPC: C23G5/04 ,  C23G5/02

CPC classification number: B08B7/0021 ,  C23G3/00 ,  C23G5/02 ,  C23G5/04 ,  F01D5/005 ,  F01D5/288

Abstract: Apparatus for stripping ceramic coatings from the surfaces of articles. The apparatus includes a dedicated pressure vessel, such as an autoclave, which is maintained at an elevated temperature. Caustic solution is preheated to a first elevated temperature before injecting it into the autoclave, and the caustic solution is filtered and cooled after use in the autoclave. The articles are stripped of coating by maintaining the articles at an elevated temperature and pressure for a predetermined time. Various options include the use of analytical equipment to maintain the chemistry of the caustic solution and use of a volatile organic solution to prepressurize the autoclave and shorten cycle time. The autoclave is maintained in a nitrogen chamber to minimize the risks associated with volatile components. The articles are transferred to a separate pressure vessel after completion of the stripping operation so that the autoclave used for stripping can be maintained at an elevated temperature, thereby shortening the cycle time for stripping of additional articles.

公开(公告)号：EP0697087A1

公开(公告)日：1996-02-21

申请号：EP95911853.0

申请日：1995-02-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： JASTER, Heinz

IPC: F25B1 ,  F25B5 ,  F25B41 ,  G05D23

CPC classification number: F25B41/065 ,  F25B5/04 ,  F25B2341/0652 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2500/15 ,  F25B2700/04 ,  Y02B30/72

Abstract: Pulse width modulation is used to control the flow rate through a solenoid expansion valve (24) in a refrigeration system (10) using a dual evaporator, two-stage cycle. The refrigeration cycle (10) includes a phase separator (22) which receives two-phase refrigerant from the low temperature evaporator (20) and supplies liquid refrigerant to the pulse width modulated solenoid valve (24). A liquid level sensor (34) is disposed in the phase separator (22), and a controller (32) for controlling the duty cycle of the pulse width modulated solenoid valve (24) is provided to receive input from the liquid level sensor (34). The liquid level sensor (34) can be of the type which provides a continuously variable signal as a function of liquid level, or it can be a liquid level switch which controls valve duty cycle on the basis of whether the phase separator liquid level is above or below a set level. Alternatively, two liquid level switches (34a, 34b) can be provided.