Arrangement for guiding lubricating oil in an internal-combustion engine
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsHans-Joachim Esch, Winfried Distelrath, Kurt Trieb
Life of this patent
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Abstract
An internal-combustion engine which has an intermediate shaft extending in parallel to the crankshaft, comprises a basin which is arranged between the shafts and which guides lubricating oil released by the crankshaft drive into an oil sump. This basin has struts which project downwardly away and which surround the intermediate shaft in such a manner that it is secured against the admission of lubricating oil of the crankshaft drive. As a result, this lubricating oil arrives in an oil tank in a largely unfoamed state.
Claims20
An arrangement for guiding oil in an internal-combustion engine, comprising:
- a basin which is arranged between an engine crankshaft drive and an oil sump and has at least one drain opening between the engine crankshaft drive and the oil sump, and
- an intermediate shaft which rotates in parallel to the crankshaft and is surrounded at least partially by two struts projecting away from the basin,
- wherein the struts form, together with the basin, a profile which receives the intermediate shaft and which is closed with respect to the crankshaft drive.
An arrangement for guiding oil in an internal-combustion engine, comprising:
- a basin which is arranged between an engine crankshaft drive and an oil sump and has at least one drain opening, and
- an intermediate shaft which rotates in parallel to the crankshaft and is surrounded at least partially by two struts projecting away from the basin,
- wherein the struts form, together with the basin, a profile which receives the intermediate shaft and which is closed with respect to the crankshaft drive,
- and wherein a bottom of the basin has a first and a second drain opening which are arranged behind one another in the rotating direction of the crankshaft and adjacent to the profile,
- and wherein the bottom has curved segments in the area of a violin-shaped connecting rod contour, which curved segments follow the contour and are situated in front of the drain openings,
- and wherein the basin has at least one scraper lip behind the respective first and second drain opening, which points in the direction of the crankshaft drive and against its rotating direction and which extends to close to the violin-shaped connecting rod contour,
- and wherein the scraper lip is arranged on a roof-type shaped-out area of the basin provided with lateral walls, a drain duct which has the first drain opening being constructed between one strut and one shaped-out area.
An arrangement for guiding oil in an internal-combustion engine, comprising:
- a basin which is arranged between an engine crankshaft drive and an oil sump and has at least one drain opening, and
- an intermediate shaft which rotates in parallel to the crankshaft and is surrounded at least partially by two struts projecting away from the basin,
- wherein the struts form, together with the basin, a profile which receives the intermediate shaft and which is closed with respect to the crankshaft drive,
- and wherein the ends of the struts, which are situated at a distance from the bottom of the basin, rest against wall sections of the internal-combustion engine by means of elastic devices in such a manner that these wall sections, together with the profile, form a closed volume which extends along the intermediate shaft and receives it.
Dependencies are inferred from the claim text.