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US4974557A Expired / Lapsed US ⏱️ 0.0 years remaining

Auxiliary drive arrangement of an internal combustion engine for an air compressor

Assignee: MAN Truck and Bus SE
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Filing: 1989-04-28
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Granted: 1990-12-04
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Expires: 2009-04-28
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Abstract

Abstract An air compressor, which is embodied as a single or multi-cylinder/piston compressor, and which is driven by gear wheels. The drive gear or pinion of the air compressor is disposed on the air compressor crankshaft and meshes with a gear wheel on the camshaft of an internal combustion engine. Provided on the periphery of the air compressor pinion is, for a single cylinder/piston compressor, one interval having an enlarged tooth gauge, and for a multi-cylinder/piston compressor, several such intervals, the number of which corresponds to the number of times the tangential force passes through zero during one air compressor crankshaft revolution, with the centers of the intervals being coordinated with the respective top dead center position of the air compressor piston.

Inventors

  • 👤 Hans Gebhardt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 16:12
CPC Classifications
F; F02; F02B; F02B63/00; F02B63/06; F02B75/00; F02B75/16; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/19642; Y10T74/19679; Y10T74/1987; Y10T74/19884; Y10T74/19949; Y10T74/19963; Y10T74/19972

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 183 words
In an auxiliary drive arrangement of an internal combustion engine for an air compressor embodied as a single or multi-cylinder/piston compressor, with the piston or pistons that are guided in the cylinder or cylinders being driven, via a respective connecting rod, by a crankshaft that is connected with a pinion that in turn is driven from the drive shaft of said internal combustion engine via gear wheels, wherein said air compressor pinion meshes with a gear wheel on a camshaft of said engine, the improvement wherein: there is provided on the periphery of said air compressor pinion, for a single cylinder/piston compressor, one interval having an enlarged tooth gauge, and for a multi-cylinder/piston compressor, several such intervals, the number of which corresponds to the number of times the tangential force passes through zero during one air compressor crankshaft revolution, wherein said intervals have centers that are the maximum tooth gauge and are coordinated with the respective top dead center position of said air compressor pistons, with this being achieved via an alignment of said air compressor pinion relative to said air compressor crankshaft.
Claim 2
Dependent Claim 183 words
In an auxiliary drive arrangement of an internal combustion engine for an air compressor embodied as a single or multi-cylinder/piston compressor, with the piston or pistons that are guided in the cylinder or cylinders being driven, via a respective connecting rod, by a crankshaft that is connected with a pinion that in turn is driven from the drive shaft of said internal combustion engine via gear wheels, wherein said air compressor pinion meshes with a gear wheel on a camshaft of said engine, the improvement wherein: there is provided on the periphery of said air compressor pinion, for a single cylinder/piston compressor, one interval having an enlarged tooth gauge, and for a multi-cylinder/piston compressor, several such intervals, the number of which corresponds to the number of times the tangential force passes through zero during one air compressor crankshaft revolution, wherein said intervals have centers that are the maximum tooth gauge and are coordinated with the respective top dead center position of said air compressor pistons, with this being achieved via an alignment of said air compressor pinion relative to said air compressor crankshaft.
Claim 3
Dependent Claim 31 words
An auxiliary drive arrangement according to claim 1, in which said enlargement of said tooth gauge for a given interval is effected in an increasing and decreasing manner over several teeth.

References Cited (Backward Citations)

US2585971A Cited
US3424022A Cited
US4051744A Cited
US4223528A Cited
US4573439A Cited
US4423707A Cited
US4660432A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-12-03 1994-06-04 1994-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-12-03 1998-06-04 1998-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-12-03 2002-06-04 2002-12-04 $7700.00 Window Closed / Lapsed

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