Global Patent Index - EP 1379786 A1

EP 1379786 A1 20040114 - SCREW COMPRESSOR UNIT WITH INCORPORATED OIL COOLING

Title (en)

SCREW COMPRESSOR UNIT WITH INCORPORATED OIL COOLING

Title (de)

SCHRAUBENVERDICHTEREINHEIT MIT EINGEBAUTER ÖLKÜHLUNG

Title (fr)

UNITE COMPRESSEUR A VIS AVEC SYSTEME DE REFROIDISSEMENT D'HUILE INCORPORE

Publication

EP 1379786 A1 20040114 (EN)

Application

EP 02728044 A 20020416

Priority

  • IT 0200239 W 20020416
  • IT FI20010067 A 20010417
  • IT FI20020014 A 20020118

Abstract (en)

[origin: WO02084124A1] A screw compressor unit comprising a compressor body (2) defining a comression chamber (2a) within which there are housed at least two screw rotors (3) engaged with each other and operated by motor means (1); means for separating the lubricating oil entrained by the compressed gas arranged in a separation chamber (14) communicating with the compression chamber (2a); means (17) for filtering the compressed gas issuing from the separation chamber (14); heat exchange means (5a, 21) for cooling the separated lubricating oil. The heat exchange means are provided on a shell (5) that delimits the separation chamber (14) and comprise a heat exchange surface (5a) along which a flow of cooling air is forced to circulate, the oil separated from the compressed gas in the separation chamber (14) being brought into contact with said surface. There are also provided coupling means for connecting said compressor body (2) to said shell (5) and means (26) for conveying the cooling air towards the heat exchange surface (5a) enclosing at least the compressor body (2) and said separation chamber (14).

IPC 1-7

F04C 29/02; F04C 29/04; F04C 18/16

IPC 8 full level

F04C 29/02 (2006.01); F04C 29/04 (2006.01)

CPC (source: EP)

F04C 29/026 (2013.01); F04C 29/04 (2013.01)

Citation (search report)

See references of WO 02084124A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02084124 A1 20021024; AT E291175 T1 20050415; DE 60203272 D1 20050421; DE 60203272 T2 20060209; EP 1379786 A1 20040114; EP 1379786 B1 20050316; ES 2237678 T3 20050801

DOCDB simple family (application)

IT 0200239 W 20020416; AT 02728044 T 20020416; DE 60203272 T 20020416; EP 02728044 A 20020416; ES 02728044 T 20020416