DE10020514A1 - Cam disk control for internal combustion engine is applied to four-stroke engine - Google Patents

Abstract

The cam disk control has only one cam disk (1) controlling the inflow and outflow of gases. The cam disk is driven from the crankshaft (2). The drive is effected through gear wheels (3, 4a, 4b, 5), or by a combination of chain and sprockets. The disk rotates between induction and exhaust channels, the glow plug boring and the combustion chamber.

Description

Known 4-stroke internal combustion engines are via valves controlled.

The many components required for this (e.g. Camshaft, rocker arm, valve guides, valves, valve spring n), can the usage of an internal combustion engine limit by making noises, adjusting or need maintenance, the maximum speed limit or the inflow and outflow behavior negative influence.

The invention is based on the technical problem that Reduce variety of control parts and control to simplify.

This problem is addressed by the claims Features listed solved. In the embodiment of the Invention controls a single control disc with one Opening, by rotating the 4 bars of the Internal combustion engine.

The advantages achieved with the invention exist especially in that a variety of different tax divisions no longer apply. That means easy production and less cost. By dropping out of open valves in the inlet and outlet channels of the According to the invention, an optimal gas throughput is possible. The Elimination of moving back and forth Masses (rocker arms, valves), enables higher speeds and smoother running. Maintenance work, such as adjusting the valves are eliminated. By using a glow plug, there is no need for a complete ignition system.

Some embodiments of the invention are in the Drawings shown in different views and is described in more detail below.

It always show

Fig. 1 shows a longitudinal section through an internal combustion engine of the embodiment of the invention,

Fig. 2 is a view from the cylinder head of the internal combustion engine shown in Fig. 1,

Fig. 3 is a view of the control disc, the internal combustion engine shown in Fig. 1,

There follows the explanation of the invention with reference to Drawings according to the structure and mode of operation of the illustrated invention.

An internal combustion engine is shown in the ratio stroke to bore. Insignificant details were left out. The control disc rotates at 1/2 the crankshaft speed between the cylinder head and the combustion chamber. The formula: γ = π × d is used for the exact translation. The control disc ( 1 ) is driven by the crankshaft ( 2 ). It is transmitted by a gear ( 3 ) that rotates firmly on the crankshaft, via two gears ( 4 a; 4 b), on a gear ( 5 ) that rotates firmly on the control disc shaft ( 6 ). Is translated to the gear wheel (3) and the adjacent toothed wheel (4 b) in the ratio 1: 1/2 revolution. As a result, the opening ( 7 ) in the control disk, depending on the position of the piston, the inlet channel ( 8 ), no channel, the bore ( 9 ) for the candle, the outlet channel ( 10 ), in the cylinder head ( 11 ) open or close .

In the intake stroke, the opening of the control disc gives the Inlet channel free and the piston moves down. In the compression stroke there is the opening of the control disc no channel free and the piston moves up. The opening of the control disc indicates in the work cycle Candle hole is free and the piston is down pressed.

In the exhaust stroke, the opening of the control disc gives the Outlet channel free and the piston moves upwards.

Claims (2)

1. Internal combustion engine according to the 4-stroke system, but without Valve control, but with a control disc. 2. Internal combustion engine according to claim 1, characterized, that the control disc has an opening with 1/2 Crankshaft speed turns and the fresh or exhaust gases get in or out.