US 6,394,361 B1Granted

Device for automatically balancing a liquid-based heat-transfer system

AssigneeComap

InventorsPierre Fridmann, Jacky Leger, Jean Philippe Robin

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Abstract

In a device including a first calibrated or adjustable orifice and a second orifice located downstream of the first orifice, the opening of the second orifice is adjusted by a valve whereof the position is controlled by apparatus displacing the valve depending on the pressure difference prevailing between upstream and downstream of the first orifice and by apparatus producing a displacement depending on the temperature of the premises wherein the device is located. The device is mounted in two separate bodies, mutually linked, a first body corresponding to the first orifice and a second body corresponding to the second orifice. The device enables to produce both automatic hydraulic balancing and thermostatic control.

Claims19

Dependent claims

Hydraulic module for supplying heat-transfer fluid to a heat emitter, such as a radiator, and collecting the fluid as it leaves the heat emitter, and forming a device for balancing a liquid-based heat-transfer system, characterized in that it comprises:

two fluid inlets and two fluid outlets, a first inlet (30) being designed for connection to the fluid supply of the system and forming the inlet of a first circuit internal to the module (26), the outlet of which is the outlet of the module designed to supply the heat emitter (2), and the second inlet being designed for the return of the fluid from the heat emitter and forming the inlet of a second circuit internal to the module, the outlet (32) of which is the outlet of the module designed for the return of the fluid to the supply system, and
a diaphragm (46), a poppet valve (38) that is equipped with a head (40) and with a means (42) of connection to the diaphragm (46) and is designed to control the opening of an orifice (36) in the second circuit in order to regulate the flow through the latter,
the diaphragm (46) separating the two circuits and therefore being subject on each side to their respective pressures.

Dependencies are inferred from the claim text.