DE2036379A1 - Camshaftless 4-stroke engine or electromechanical or electronically controlled intake and exhaust valves - Google Patents

Description

Re: patent application: camshaftless k- stroke engine resp.

Electromechanically or electronically controlled inlet and outlet valves

Dear Sirs! ;

In the petrol and diesel four-stroke engines built so far the intake and exhaust valves are via a camshaft controlled.

This camshaft, as well as the tappet, chain drive, rocker arm, etc., becomes superfluous if the valves are operated electromagnetically actuated. The control current for these electromagnets can be either via electromechanical or non-contact contacts with downstream digital counters as well as analog or digital control and regulating devices are switched by the crankshaft v / earth.

I therefore ask for the patent protection of the following orders:

1. Activate the intake and exhaust valves of 4-stroke engines by electromagnetic coils, one of which is fixed to the valve stem, or by a permanent magnet and

· .. ··· .-. an electromagnet.

2. Contact for the control current

a. electromechanically via small cams or control profiles, which are either on the previous camshaft control wheel corresponding (e.g. driven by an internal ring gear) wheel are attached, or directly on the extended Crankshaft or on the parts rigidly connected to it.

In this case, it is necessary to connect a mechanical or electronic counter that only displays the required Lets impulses through.

b. via non-contact (inductive, capacitive or photoelectric ) Contacts or pulse generators, which can be attached as under /2.a./, as well as on the connecting rods, the Crankcase, pistons, cylinder heads or on the crankshaft throws. Instead of the cam or Control disks can also be used by other common analog-to-digital converters.

3. Speed-dependent regulation of the opening and closing times through analog or digital control systems, which, in addition to the position of the crankshaft, also pressure, temperature and speed parameters consider. Each valve can be assigned its own cams (as before) or all valves can be assigned via one Central control unit switch that provides the necessary information from a digital counter or an analog-to-digital converter that reports the position of the crankshaft. This central unit can also be used to control the ignition pulse been * f \

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Claims (1)

Josef Dittrich 7501 Hohenwettersbach, July 21, 1970 -, - millet * β irr. 9 ;> ο To the \ ...:
Patent office
8000 Munich
P.O. Box