AU4558485A – Pulse controlled solenoid valve
– Google Patents
AU4558485A – Pulse controlled solenoid valve
– Google Patents
Pulse controlled solenoid valve
Info
Publication number
AU4558485A
AU4558485A
AU45584/85A
AU4558485A
AU4558485A
AU 4558485 A
AU4558485 A
AU 4558485A
AU 45584/85 A
AU45584/85 A
AU 45584/85A
AU 4558485 A
AU4558485 A
AU 4558485A
AU 4558485 A
AU4558485 A
AU 4558485A
Authority
AU
Australia
Prior art keywords
valve
flow rate
flow
controlled solenoid
control
Prior art date
1984-08-08
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU45584/85A
Inventor
Richard H. Alsenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1984-08-08
Filing date
1985-07-30
Publication date
1986-02-13
1985-07-30
Application filed by Individual
filed
Critical
Individual
1986-02-13
Publication of AU4558485A
publication
Critical
patent/AU4558485A/en
Status
Abandoned
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
238000004378
air conditioning
Methods
0.000
abstract
1
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B49/00—Arrangement or mounting of control or safety devices
F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B41/00—Fluid-circulation arrangements
F25B41/30—Expansion means; Dispositions thereof
F25B41/31—Expansion valves
F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
F25B41/345—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
F25B41/347—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids with the valve member being opened and closed cyclically, e.g. with pulse width modulation
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/19—Control of temperature characterised by the use of electric means
G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/19—Control of temperature characterised by the use of electric means
G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
F25B2400/07—Details of compressors or related parts
F25B2400/075—Details of compressors or related parts with parallel compressors
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2500/00—Problems to be solved
F25B2500/15—Hunting, i.e. oscillation of controlled refrigeration variables reaching undesirable values
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2600/00—Control issues
F25B2600/21—Refrigerant outlet evaporator temperature
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2600/00—Control issues
F25B2600/25—Control of valves
F25B2600/2513—Expansion valves
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2700/00—Sensing or detecting of parameters; Sensors therefor
F25B2700/21—Temperatures
F25B2700/2117—Temperatures of an evaporator
F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2700/00—Sensing or detecting of parameters; Sensors therefor
F25B2700/21—Temperatures
F25B2700/2117—Temperatures of an evaporator
F25B2700/21174—Temperatures of an evaporator of the refrigerant at the inlet of the evaporator
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B2700/00—Sensing or detecting of parameters; Sensors therefor
F25B2700/21—Temperatures
F25B2700/2117—Temperatures of an evaporator
F25B2700/21175—Temperatures of an evaporator of the refrigerant at the outlet of the evaporator
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
A pulsed controlled solenoid flow control valve suitable for use in a closed vapor cycle air conditioning system is disclosed. A pulsewidth modulated control signal is generated for cyclically opening and closing the flow through the expansion valve. The duty cycle of the pulsed control signal determines the average flow rate through the valve. An exponential response control curve is used in conjunction with an integrator offset to obtain a single set point control operating point for all flow rates through the valve, where a given change in the second superheat of the evaporator produces the same percentage change in flow rate regardless of the flow rate.
AU45584/85A
1984-08-08
1985-07-30
Pulse controlled solenoid valve
Abandoned
AU4558485A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US06/639,271
US4651535A
(en)
1984-08-08
1984-08-08
Pulse controlled solenoid valve
US639271
1984-08-08
Publications (1)
Publication Number
Publication Date
AU4558485A
true
AU4558485A
(en)
1986-02-13
Family
ID=24563422
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU45584/85A
Abandoned
AU4558485A
(en)
1984-08-08
1985-07-30
Pulse controlled solenoid valve
Country Status (7)
Country
Link
US
(3)
US4651535A
(en)
EP
(1)
EP0171240B1
(en)
JP
(1)
JPS6146868A
(en)
AT
(1)
ATE88819T1
(en)
AU
(1)
AU4558485A
(en)
CA
(1)
CA1272887A
(en)
DE
(1)
DE3587300T2
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU592021B2
(en)
*
1986-10-31
1989-12-21
Carrier Corporation
Refrigerant metering in a variable flow system
Families Citing this family (110)
* Cited by examiner, † Cited by third party
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Also Published As
Publication number
Publication date
DE3587300D1
(en)
1993-06-03
CA1272887A
(en)
1990-08-21
US4651535A
(en)
1987-03-24
ATE88819T1
(en)
1993-05-15
DE3587300T2
(en)
1993-11-11
EP0171240A3
(en)
1987-05-20
US4735060A
(en)
1988-04-05
US4686835A
(en)
1987-08-18
EP0171240A2
(en)
1986-02-12
EP0171240B1
(en)
1993-04-28
JPS6146868A
(en)
1986-03-07
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