Global Patent Index - EP 1094221 A1

EP 1094221 A1 2001-04-25 - Apparatus with rotary positive displacement pumps having combined drive

Title (en)

Apparatus with rotary positive displacement pumps having combined drive

Title (de)

Vorrichtung mit antriebskombinierten Umlaufverdrängerpumpen

Title (fr)

Dispositif de pompes rotatives à déplacement positif avec entraînement combiné

Publication

EP 1094221 A1 (DE)

Application

EP 00120799 A

Priority

DE 19950206 A

Abstract (en)

The device has a first driven pump (2) combined via their drive shafts (4) with a second coaxial pump (3), which feeds into a common pressure channel and that can be coupled and decoupled using controllable friction and shape-locking slip couplings (5) that are controlled depending on the delivery pressure or revolution rate. Each slip coupling is controlled via a centrifugal force-controlled device (8,10).

Abstract (de)

Für eine Vorrichtung mit antriebskombinierten Umlaufverdrängerpumpen, insbesondere außenverzahnte Zahnradpumpen, vor allem für Brennkraftmaschinen, bei der eine erste, angetriebene Pumpe über deren Antriebswelle mit einer zweiten, gleichachsig angeordneten, mittels einer steuerbaren Rutschkupplung zu- und abkoppelbaren Pumpe kombiniert ist, wird zur selbsttätigen Steuerung des Zu- und Abkuppeins der zweiten Pumpe vorgeschlagen, dass eine jeweilige Rutschkupplung über eine fliehkraftgesteuerte Einrichtung gesteuert ist. <IMAGE>

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

F04C 15/04

IPC 8 full level (invention and additional information)

F04C 15/00 (2006.01); F04C 14/06 (2006.01)

CPC (invention and additional information)

F04C 14/06 (2013.01); F04C 15/0061 (2013.01); F04C 2270/56 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

EP 1094221 A1 20010425; EP 1094221 B1 20071128; DE 19950206 A1 20010426; DE 50014811 D1 20080110; ES 2293880 T3 20080401

INPADOC legal status


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2008-11-05 [26N] NO OPPOSITION FILED

- Effective date: 20080829

2008-08-15 [ET] FR: TRANSLATION FILED

2008-04-01 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2293880 T3

2008-01-10 [REF] CORRESPONDS TO:

- Document: DE 50014811 P 20080110

2007-12-19 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20071128

2007-11-28 [AK] DESIGNATED CONTRACTING STATES:

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2007-11-28 [REG GB FG4D] EUROPEAN PATENT GRANTED

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2007-10-03 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F04C 15/00 20060101AFI20070828BHEP

2005-10-12 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT

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2001-04-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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