Oet Gmbh

Obrist Engineering Gmbh

Uwe Wuitz

Frank Obrist

Peter Kuhn

Christian Busch

Roman Lässer

Christian Schmälzle

Roman LÄSSER

The invention relates to a displacement machine according to the spiral principle, in particular a scroll compressor or scroll expander, with a high-pressure chamber, a low-pressure chamber and an orbiting displacement spiral, which engages in a counter-spiral such that chambers are formed between the displacement spiral and the counter-spiral for receiving a working medium, wherein a counter-pressure chamber is formed between the low-pressure chamber and the displacement spiral. According to the invention a pressure regulating device which is fluidically connected to the counter-pressure chamber sets a pressure difference between the counter-pressure chamber and the low-pressure chamber by means of a set value specified by the computing unit.

Displacement machine according to the spiral principle, method to regulate pressure in the counter-pressure chamber by using a pressure difference and characteristic curve

A collector for a liquid phase of a working medium of an air-conditioning system has a one-piece collecting container with a solid upper end wall and thickened base region for coupling blocks of a high-pressure piping system and a device for emergency emptying. Flow through an upper region of the collecting container takes place in cyclone fashion starting from an inflow channel, whose outflow direction is tangential to the inner surface of the collecting container whereas the outflow from the collecting container takes place via an end piece of a piping system arranged centrally in the collecting container.

Collector for the liquid phase of the working medium of an air-conditioning system

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Lustenau, Austria

Uwe Wuitz