Global Patent Index - EP 1047912 A1

EP 1047912 A1 2000-11-02 - PLATE HEAT EXCHANGER

Title (en)

PLATE HEAT EXCHANGER

Title (de)

PLATTENWÄRMETAUSCHER

Title (fr)

ECHANGEUR THERMIQUE A PLAQUES

Publication

EP 1047912 A1 (EN)

Application

EP 99902951 A

Priority

  • SE 9900048 W
  • SE 9800099 A

Abstract (en)

[origin: WO9936740A1] The present invention refers to a plate heat exchanger for at least two heat exchanging fluids, which heat exchanger is permanently joined and comprises at least one core of plates with a plurality of inner heat exchanging plates (12b, 12c, 22b, 22c), at least two outer heat exchanging plates (12a, 22a, 22d) and at least two end plates (11, 21, 22). Each one of the heat exchanging plates (12a, 12b, 12c, 22a, 22b, 22c, 22d) is equipped with one or several corrugations vertically extending within an area bounded by two at a distance from each other situated parallel first and second planes respectively. The first plane is closer to a first end plate (11, 21) in one end of the heat exchanger than the second plane is. Each one of the heat exchanging plates is furthermore equipped with at least four port holes, every port hole being surrounded by a first sealing area, resulting in every heat exchanging plate showing at least four such first sealing areas. At least all except one of the mentioned first sealing areas on a first outer heat exchanging plate (12a, 22a) are in the mentioned first plane and bear on and seal against the mentioned first end plate (11, 21) extending in this plane.

IPC 1-7 (main, further and additional classification)

F28D 9/00; F28F 3/08; F28F 9/16

IPC 8 full level (invention and additional information)

F28D 9/00 (2006.01)

CPC (invention and additional information)

F28D 9/005 (2013.01)

Citation (search report)

See references of WO 9936740A1

Designated contracting state (EPC)

DE FR GB IT PT SE

EPO simple patent family

WO 9936740 A1 19990722; AU 2304399 A 19990802; CN 1262811 C 20060705; CN 1288512 A 20010321; DE 69906931 D1 20030522; DE 69906931 T2 20031106; EP 1047912 A1 20001102; EP 1047912 B1 20030416; SE 511270 C2 19990906; SE 9800099 D0 19980115; SE 9800099 L 19990716

INPADOC legal status


2013-06-28 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2011-12-22 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

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2011-10-14 [REG FR ST] NOTIFICATION OF LAPSE

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2011-09-28 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

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2004-04-07 [26N] NO OPPOSITION FILED

- Effective date: 20040119

2003-10-10 [ET] FR: TRANSLATION FILED

2003-07-16 [PG25 PT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2003-05-22 [REF] CORRESPONDS TO:

- Document: DE 69906931 P 20030522

2003-04-16 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): DE FR GB IT PT SE

2003-04-16 [REG GB FG4D] EUROPEAN PATENT GRANTED

2003-01-15 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ALFA LAVAL CORPORATE AB

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000629

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT PT SE