Schraubenverdichter

Details

Veröffentlichungs-Nr.

EP4752365

Anmeldetag

21. Juni 2024

Veröffentlichung

30. Januar 2025

Rechtsraum

EP

IPC

F04C18/16, F04C29/00

Abstract

Provided is a screw compressor capable of increasing a suction amount under such a condition that a wrap angle of a rotor is small. The screw compressor includes a plurality of male-rotor-side working chambers 10A each formed in each of a plurality of grooves of a male rotor 1A and a plurality of female-rotor-side working chambers 10B each formed in each of a plurality of grooves of a female rotor 1B. A rotation angle range of the female rotor 1B in which a female-rotor-side working chamber 10B having the maximum volume, out of the plurality of female-rotor-side working chambers 10B, exists is larger than a product of a number obtained by subtracting a number of lobes of the male rotor 1A from a number of lobes of the female rotor 1B and a rotation angle range of the female rotor 1B corresponding to a circumferential width of the groove of the female rotor 1B. A suction completion timing of the female-rotor-side working chamber 10B is set to be later than a reference timing at which the volume of the female-rotor-side working chamber 10B is maximum, and is set to be earlier than elapse of a propagation time of a pressure wave that propagates from a discharge-side end surface 18B to a suction-side end surface 19B of a lobe section 3B of the female rotor 1B in the female-rotor-side working chamber 10B.

Anmelder

Firma

Hitachi Industrial Equipment Systems Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete