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EP0406527A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Driving system for two oil pumps of an internal combustion engine with reciprocating pistons

Assignee: Dr Ing HCF Porsche AG
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Filing: 1990-04-06
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Granted: —
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Expires: 2010-04-06
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Abstract

Abstract Translated from German Der Schmierölkreislauf einer Hubkolben-Brennkraftmaschine wird durch eine in der Ölwanne angeordnete, von der Kurbelwelle (2) angetriebene Hauptölpumpe (30) versorgt. Eine zweite, ebenfalls von der Kurbelwelle angetriebene Ölpumpe (20), liefert Hydraulikdruck an hydraulische Nockenwellenverdrehvorrichtungen. Die zweite Ölpumpe (20) ist in einem Zwischenrad (7) integriert und von ihm angetrieben, über das die Nockenwellen von der Kurbelwelle angetrieben sind. The lubricating oil circuit of a reciprocating piston internal combustion engine is supplied by a main oil pump (30) arranged in the oil pan and driven by the crankshaft (2). A second oil pump (20), also driven by the crankshaft, supplies hydraulic pressure to hydraulic camshaft turning devices. The second oil pump (20) is integrated in an intermediate wheel (7) and driven by it, via which the camshafts are driven by the crankshaft.

Inventors

  • 👤 Herbert Dipl.-Ing. Ampferer (Fh)

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 11:37
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/34; F01L1/344; F01L1/02; F01L1/022; F01M; F01M1/00; F01M1/02; F02; F02B; F02B67/00; F02B67/04; F02B67/06; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F01L1/04; F01L1/047; F01L1/053; F01L2001/0537; F02B2075/1804; F02B2075/1832; F02B2275/00; F02B2275/08; F02B2275/18

Claims Analysis

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References Cited (Backward Citations)

US3159047A Cited
DE2620480A1 Cited
EP0163046A1 Cited
DE3619577A1 Cited
EP0272677A1 Cited

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