The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2001
Filed:
May. 13, 1999
Guenter Kampichler, Ruhstorf, DE;
Udo Griebl, Passau, DE;
Motorenfabrik Hatz GmbH & Co. KG, Ruhstorf, DE;
Abstract
An automatic decompression system for an internal combustion engine, especially a one-cylinder diesel engine, with at least one outlet and one inlet valve, which are activated by a camshaft (,) with at least one cam (,), wherein the outlet valve is lifted during starting to reduce the cranking resistance, wherein there is provided for lifting the outlet valve at speeds below a switching speed for changeover from decompression to compression a fully automatic lifting device, which engages in the cam (,) of the outlet valve and effects lifting of the outlet valve from the valve seat, wherein the lifting device is equipped with a bow-shaped member (,), pivoted in articulated relationship, disposed between cam (,) and a cam disk (,), which bow-shaped member has two articulated arms (,) and a crosspiece (,) joining them, and which at speeds below the switching speed occupies in the cam plane an engaged decompression position, in which it projects beyond the cam base circle, and which can be disengaged into a neutral position in the cam-disk plane when the switching speed is reached, is provided for the purpose of speed-dependent control of the engagement and disengagement process with at least one flyweight (,), which is subjected by a spring (,) to radially inward pressure and which is coupled flexibly with the bow-shaped member.