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Class 165/295 - Including mass flow sensor


Subclass of Class 165 - Heat exchange
Definition: Subject matter and further including a means to measure
No. of patents: 38
Last issue date: 12/29/2009


NumberTitleIssue Date
7637315Constant temperature liquid circulating device and method of controlling temperature in the device
In a constant temperature liquid circulating device that connects a piping of circulating liquid in an external device between a discharge port and a return port of a conduit for delivering the circulating liquid at a constant temperature by a pump, a flow amount se...
12/29/2009
7571762Ground source heat exchange system
A ground source heat exchange system includes an upstream manifold and a downstream manifold. More than one heat exchange flow circuit can be connected to the upstream and downstream manifolds for burial in the ground. A control valve associated with each heat excha...
08/11/2009
7407003Ground source heat exchange system
A ground source heat exchange system includes an upstream manifold and a downstream manifold. More than one heat exchange flow circuit can be connected to the upstream and downstream manifolds for burial in the ground. A control valve associated with each heat excha...
08/05/2008
7347005Ventilation system for household appliances in particular for washing machines
Ventilation system for household appliances, in particular for washing machines, including a device having at least a chamber for housing an impeller, a suction duct, through which a first fluid, in particular damp air, is sucked into the chamber by the impeller, an...
03/25/2008
7334627Enhanced heat transfer device with electrodes
An enhanced heat transfer device with electrodes is provided, which is applied to a heat exchanger with a plurality of fluid channels and includes a plurality of electrodes mounted in the fluid channels of the heat exchanger; a plurality of sensor units mounted in t...
02/26/2008
7293605Feed-back control system for heat exchanger with natural shedding frequency
The invention relates with the feed-back control system of a heat exchanger by use of the flow resonance phenomenon which maximizes the heat transfer efficiency by generating the flow disturbances of a heat transfer medium. If a heat transfer medium is periodically ...
11/13/2007
7069976Method and arrangement for controlling the temperature of the outstream flow from a heat exchanger and measuring produced heat
Process and device for controlling the temperature of an outbound secondary flow in a secondary circuit from a heat exchanger by a primary flow in a primary circuit, via a member that regulates the primary flow, influenced by a control unit. The enthalpy difference ...
07/04/2006
6802314Respiratory humidification system
A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is des...
10/12/2004
6694974Respiratory humidification system
A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow p...
02/24/2004
6584972Respiratory humidification system
A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow p...
07/01/2003
6450254Fluid control system with autonomously controlled valves
A plurality of autonomously controlled valves in a fluid distribution system are interconnected by a data communication network. The system also includes fluid flow sensors which report to the system by way of the network. The autonomous controllers inclu...
09/17/2002
6449969Method for controlling coolant circulation system
There is provided a method for controlling a coolant circulation system including a coolant circuit and a refrigerating or refrigerating/heating machine in which a portion of the coolant circuit passes through the refrigerating or refrigerating/heating ma...
09/17/2002
6349722Respiratory humidification system
A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow p...
02/26/2002
6123146Air conditioning installation with an external temperature estimator, especially for a motor vehicle
A motor vehicle air conditioning installation has a cold loop, a hot loop, a sensor for measuring cabin temperature, a manual setting unit for setting demand values of cabin air parameters, and a control unit for defining the resulting required adjustment...
09/26/2000
5927400Device and method for the adjustment of the flow rate of a liquid, with closed loop control
A device is described, for the adjustment of the flow rate of a liquid which circulates within thermal convectors or heat exchangers making up part of heating, conditioning or ventilation plants, or apparatus for the thermal treatment of products. The dev...
07/27/1999
5904292Modulating fluid control device
The present invention relates to a modulating fluid control device for a fluid-based heating and cooling system for a measured environment. The control device comprises a body, a fluid entry port and a fluid exit port and a valve with actuator located bet...
05/18/1999
5810078Apparatus and method for the environmental control of vehicle interiors
An apparatus and method for controlling the air condition and heating within a vehicle interior compartment, in which the apparatus includes a fan (13), heat exchangers (14, 15), temperature sensors (26, 27, 28) and a solar sensor (29) and temperature con...
09/22/1998
5806582Method and arrangement for controlling heat transfer in ventilation Apparatus or air conditioning apparatus
A method and an arrangement for controlling heat transfer in a ventilation apparatus or an air conditioning apparatus, in which heat contained in exhaust air is recovered into supply air by means of a heat transfer circuit having fluid circulation. Additi...
09/15/1998
5802863System and method for refrigerating liquids
A refrigerator for rapidly cooling down and then maintaining a plurality of wine bottles of arbitrary configuration within a selected temperature range comprises a compression type refrigeration unit in association with the refrigerated compartment which ...
09/08/1998
5779141Heating apparatus
A heating apparatus of a re-heat type for an air conditioning system for a vehicle provided with an internal combustion engine. The heating apparatus includes a flow control valve for controlling an amount of an engine hot water directed to a heat exchang...
07/14/1998
5522452Liquid cooling system for LSI packages
In a liquid cooling system for a printed circuit board on which integrated circuit packages are mounted, heat sinks are secured respectively to the packages in heat transfer contact therewith. Nozzles are provided in positions corresponding to the heat si...
06/04/1996
5363905Method of controlling heat exchangers using enthalpy flow as the correcting variable
A method of controlling a heat exchanger wherein the enthalpy flow into the heat exchanger serves as a correcting variable. The robust and versatile control method is particularly suitable for use in endothermic reactions and for distillation....
11/15/1994
5347825Hydronic interface system, method and apparatus
A method and apparatus for coupling a primary loop with a secondary loop for circulating processing fluids therebetween comprising in combination: a first connection for the feed line of the primary loop and a second connection for the return line of the ...
09/20/1994
4997030Central air conditioning system having remote controller in a plurality of rooms for starting or stopping air conditioning apparatus
A central air conditioning system includes an air conditioning apparatus having a system controller and a variable air volume controller having a damper which controls the amount of conditioned air fed from the air conditioning apparatus into each room to...
03/05/1991
4702306Apparatus for controlling a process variable of a flowing medium
The plant has a controlled section through which water flows, for example, for cooling or heating purposes. The operation of the controlled section is controlled by obtaining temperature measurements of the flow via a pair of temperature sensors and emitt...
10/27/1987
4600049Method and system for operating a cooling plant
On board ships there are cooling systems comprising a heat exchanger (1) operating as a central cooler, through which sea water is pumped by means of different pumps (2-5). Fresh water for cooling the main engine (21) of the ship, and devices (15-18) of v...
07/15/1986
4583683Air conditioning system utilizing a Karman vortex detecting type flowmeter
Fluid flowmeter, air conditioning system and method of controlling the air conditioning system which includes a Karman vortex generator, ultrasonic transmitter and receiver apparatus and networks for detecting the Karman vortices and for detecting and con...
04/22/1986
4483276Fluid particle backmixed cooling apparatus
An apparatus for the cooling of hot fluidized solid particles. The apparatus comprises in combination: (a) a vertically oriented combustion chamber; (b) a disengagement chamber above and connected to the combustion chamber; (c) a collection section at the...
11/20/1984
4393921Circuit controlling coolant flow to a non-linear heat exchanger through a non-linear electromechanical valve
An electronic circuit controls a non-linear electromechanical valve in order that the temperature of approximately 25 gallons of coolant water within a reservoir may be maintained within +2.8° C. to -0.0° C. of a set point temperature from 35° F. to ...
07/19/1983
4390058Method of monitoring condenser performance and system therefor
A method of monitoring the performance of a condenser and a system for carrying such method into practice, wherein a cooling water temperature, a cooling water flow rate, a condenser temperature and/or a heat flux through walls of cooling water tubes of t...
06/28/1983
4351651Apparatus for extracting potable water
Apparatus and method for extracting potable water are disclosed in preferred form as extracting drinking water from moisture-laden air at atmospheric temperature through the use of a heat exchanger at or near subsurface temperature which is in air communi...
09/28/1982
4279574Energy recovery system
The system described is useful in connection with a gas compressor that has a heat exchanger. Water conduits, a water pump and water control valve and cooler are connected in such a manner that the water circulated through the heat exchanger is directed t...
07/21/1981
4210957Operating optimization for plural parallel connected chillers
An optimization system for switching between plural parallel connected chillers in a refrigeration system is disclosed which system establishes optimized changeover criteria based upon the design refrigerant head for the chillers, the minimum refrigerant ...
07/01/1980
4207752Method and apparatus for recovering heat from waste water
The apparatus comprises a first container for receiving waste water. Inlet means in the upper portion of the first container are adapted to be connected to a drain pipe. Outlet means in the bottommost portion of the container are provided for draining the...
06/17/1980
4099554Control system to regulate the wall temperature of a pressure vessel
A control system for a pressure vessel receiving a flow of hot rare gas, such as helium, from a nuclear reactor. The control system includes a thermocouple supported on the vessel wall within an airgap formed by an outwardly-spaced layer of insulation. An...
07/11/1978
4050506Stepwise turndown by closing heat exchanger passageways responsive to measured flow
In a cryogenic plant utilizing a liquid sparged into a cold vapor in heat exchange relationship with hotter vapor, variations in the load in terms of the volume of hot vapor are compensated for by a stepwise complete closing of a uniformly-spaced-apart fr...
09/27/1977
4008756Apparatus for air conditioning employing variable terminal box
A heating and air conditioning system and a special variable volume terminal box associated therewith, the system utilizing energy dissipated by the lighting and other building facilities in a controlled manner through the functioning of the variable volu...
02/22/1977
3977466Room air conditioning apparatus
A room air conditioning apparatus for exchanging heat and/or moisture between fresh atmospheric air entering the room from the outside and consumed air being discharged from the room combines high capacity with relatively small dimensions, low air velocit...
08/31/1976
 
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