Compression refrigeration machine
AssigneeSEP Gesellschaft fur technische Studien Entwicklung Planung mbH
InventorsHerbert Clemens, Ulrich Plantikow, Detlef Wusthoff
Life of this patent
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Abstract
A compression refrigeration machine is provided having ammonia as a refriant and including a condenser, a throttle device, an evaporator device, and a motor-compressor unit. The motor compressor unit includes an electric motor that drives a compressor and may be arranged in a semi-hermetic or hermetic encapsulation. In an hermetic encapsulation, the electric motor is located outside a suction gas stream flowing into the compressor and outside a discharge gas stream exiting from the compressor so that the electric motor is only exposed to an essentially static ammonia atmosphere. The motor-compressor unit and the semi-hermetic encapsulation are composed of materials stable or resistant to ammonia.
Claims27
A compression refrigeration machine having ammonia as refrigerant, a condenser, a throttle device, an evaporator device and a motor-compressor unit which comprises an electric motor and a compressor driven by the electric motor, wherein
- the motor-compressor unit is arranged in a semi-hermetic or hermetic encapsulation, the electric motor in the semi-hermetic encapsulation is arranged outside the suction gas stream flowing into the compressor and outside the discharge gas stream exiting from the compressor in such a manner that the electric motor is only exposed to an essentially static ammonia atmosphere and the motor-compressor unit and the semi-hermetic encapsulation are composed of materials stable or resistant to ammonia.
Dependencies are inferred from the claim text.