Measuring and testing – Vehicle drive train
Reexamination Certificate
2007-08-14
2009-11-24
Caputo, Lisa M (Department: 2855)
Measuring and testing
Vehicle drive train
Reexamination Certificate
active
07621176
ABSTRACT:
The absolute crankshaft angle of an internal combustion engine of a hand-held power tool is to be determined. The engine has a cylinder with a combustion chamber delimited by a piston that drives a crankshaft in a crankcase. The crankcase is connected by a transfer passage to the combustion chamber and the transfer port of the transfer passage is piston-controlled. Ignition takes place at an adjusted crankshaft angle. The energy supply unit of the engine is driven by the crankshaft and provides electric energy for ignition. The crankshaft angle is determined in that a signal generator is provided as an energy supply unit and generates an alternating voltage signal caused by a crankshaft revolution. An operating pressure signal of the engine is detected by a pressure sensor. The output signals of the pressure sensor and of the signal generator are linked with one another for determining the absolute crankshaft angle.
REFERENCES:
patent: 5284118 (1994-02-01), Kato et al.
patent: 5586524 (1996-12-01), Nonaka et al.
patent: 6560526 (2003-05-01), Matekunas et al.
patent: 6598469 (2003-07-01), Shimoyama et al.
patent: 6935168 (2005-08-01), Shimoyama
patent: 6955081 (2005-10-01), Schwulst
patent: 7079936 (2006-07-01), Honda
patent: 7111613 (2006-09-01), Barnes et al.
patent: 7302835 (2007-12-01), Galtier et al.
patent: 2003/0111024 (2003-06-01), Venturoli et al.
patent: 2008/0042643 (2008-02-01), Maier et al.
patent: 2008/0053407 (2008-03-01), Maier et al.
Halle Christine
Kinnen Arno
Layher Wolfgang
Maier Georg
Theimer Uwe
Andreas Stihl AG & Co. KG
Caputo Lisa M
Huckett Gudrun E.
Kirkland, III Freddie
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