Danfoss A/s

Volker Spies

Jens J Molbaek

Knud V Valbjorn

Poul S Dam

Poul C Dyhr-Mikkelsen

Peter Jorgensen

Christian Dyhr-Mikkelsen Poul

The invention relates to a flow regulator in which a diaphragm of elastically deformable material is disposed between a pressure chamber at supply pressure and an end face of a base member having open radially extending grooves. A supply passage extends from the regulator inlet circumferentially around the diaphragm into fluid communication with the grooves and a discharge passage is axially disposed in the base member in fluid communication with the radially inward ends of the grooves. Pressure variations in the supply passage cause the diaphragm to cover varying lengths of the grooves to vary the throttling effects of the grooves. The regulator is adapted for different ranges of flow quantities by providing two or more grooves in the face of the base member and by providing valving apparatus for selectively connecting one or more of the grooves to the supply passage.

Flow regulator

The invention relates to a thermostatic regulator assembly which has the dual function of controlling both the heating and air conditioning equipment of a building. The assembly basically incorporates a first valve unit for controlling the flow of a heating fluid such as steam or hot water and a second valve unit for controlling the flow of air which in turn can control the regulator of a damper system of ducts which supply cooled air for air conditioning. The first valve unit is operative when it is open and the second valve unit is operative when it is closed. Thermostatic motor means operate the first and second valve units sequentially so that they are sequentially effective for first and second temperature ranges which correspond to heating and cooling condition requirements. The second valve unit may have a valve seat in the form of a nozzle and a closure member in the form of a baffle plate.

Thermostatic regulating means for an air-conditioning plant

Growing community of inventors

Augustenborg, Denmark

Volker Spies