Global Patent Index - EP 4151858 A1

EP 4151858 A1 20230322 - SCREW COMPRESSOR

Title (en)

SCREW COMPRESSOR

Title (de)

SCHRAUBENVERDICHTER

Title (fr)

COMPRESSEUR À VIS

Publication

EP 4151858 A1 20230322 (EN)

Application

EP 20935127 A 20200514

Priority

JP 2020019237 W 20200514

Abstract (en)

A screw compressor includes a casing including a discharge port, a screw rotor accommodated in the casing, the screw rotor having one end side serving as a suction side in an axial direction, and an other end side serving as a discharge side in an axial direction, and a slide valve accommodated in a slide-valve accommodating groove formed in the casing, the slide valve being slidable in a rotational axis direction of the screw rotor. The slide valve includes a valve body portion. The slide valve moves to a position where the valve body portion faces the screw rotor and to a position where the valve body portion does not face the screw rotor. The valve body portion forms a portion of the discharge port when in a position facing the screw rotor.

IPC 8 full level

F04C 18/16 (2006.01); F04C 18/52 (2006.01)

CPC (source: EP)

F04C 18/52 (2013.01); F04C 28/12 (2013.01); F04C 18/16 (2013.01); F04C 2250/102 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4151858 A1 20230322; EP 4151858 A4 20230712; WO 2021229743 A1 20211118

DOCDB simple family (application)

EP 20935127 A 20200514; JP 2020019237 W 20200514