DE2362187A1 - IC engine with flap valves - combustion chamber sealed by flaps and drive conveyed directly by specially formed body - Google Patents

Abstract

To increase the turning moment of an internal combustion engine working on the Otto principle with lesser number of revolutions it is suggested that the combustion chamber is sealed by flaps. The centrically arranged star-shaped body on the drive shaft conveys eight working strokes with a four flap engine for only one rotation. The moment is thus conveyed directly onto the drive shaft. The ends of the flaps are fixed on axles and are arranged in a circle concentrically around the centre of the engine. The cantilevers of the flaps convey the moment from the working stroke to the drive shaft. All the cantilevers ride on the star-shaped body which serves as the motion conveying member.

Description

sheet

Description and explanation of the patent application

"Combustion engine with combustion chamber sealing by flaps"

The possibilities of further increases in performance of the reciprocating piston engines Due to higher speeds, there are limits due to the reciprocating masses caused by connecting rods, pistons, valve control, etc.

With a rotary engine, the moving masses are already smaller than with the piston engine and the eccentric shaft covers one revolution in one work cycle. After one full turn of the triangular piston around itself, the eccentric shaft rotates three times and the motor has three times the complete sequence of the 4-stroke process carried out. ·.

In order to have an internal combustion engine according to the Otto-cycle with a lower \ - To produce speed and high torque inexpensively, the invention proposes the combustion chambers of this machine to be completed by flaps.

The star body, which is arranged centrally on the drive shaft, transmits 8 working cycles with 4 flaps with just one rotation Engine.

The structure of such a motor is shown in the accompanying drawing to see

with 5 flap with 6th Star body with 7th Output shaft with 8th Combustion chamber with 9 Valves with 10 spark plug

Figures 11, 12, 13 and 14 show the work cycles of a 4-valve engine.

509 8 26/0 409

236218?

The combustion chambers of this machine are closed by flaps which are mounted in axes at one end and arranged in a circle around the center of the motor. About the cantilever arms of the flaps, the torque that becomes effective during the work cycle is transmitted to the output shaft. Serves as a transmission link a star-shaped body along which all the cantilever arms of the flaps slide.

The 4-stroke processes can be optimized through the shaping of the outer curves of the star body.

The combustion chamber is sealed to the outside via valves.
The advantages of the construction are low reciprocating masses. Another advantage is that with each revolution of the
Star body takes place two 4-stroke work cycles per combustion chamber, so that, for example, with an engine with 4 flaps, eight work cycles
are executed.

The moment given to the star body via the cantilever arm of the flaps is very large.

The output shaft is not cranked. Between the (piston
corresponding) flaps and the output shaft, no gears are required.

The dimensions of the motor are spec. low and inexpensive to manufacture. The compact assembly of several
Units is possible.
The method of operation is described below and

in Figure 11 is

shown: Stretch in combustion chambers 1 and 3

After ignition, the burning gases work out,
press the cantilever arms of the flaps
on the star body so that the output shaft rotates = work cycle.

The combustion chambers 2 and 4 fill with fresh gas = intake stroke.

509826/0409

Figure 13 shows:

Combustion chambers 1 and 3 fill with fresh gas = intake stroke.

After in chambers 2 and 4 the ignition took place, the cantilever arms of the flaps drive the star; body = work cycle.

Figure 14 shows:

The gas mixture in the chambers 1 and 3 are compressed.

The burned gases are pushed out of the combustion chambers 2 and 4.

Of course, the invention is not based on the above embodiment described and shown in simplified form on the accompanying drawing, but are Changes possible without deviating from the basic idea to produce an internal combustion engine that is one-sided stored flaps seals the combustion chambers and, on the other hand, that due to the expansion of the burned gases from the flaps directly over a correspondingly - shaped body the output shaft transmits.

Claims (1)

Claim: Device for operating an internal combustion engine thereby characterized in that flaps mounted on one side seal the combustion chamber and, on the other hand, that the expansion The torque generated by the burned gases is transmitted directly to the output shaft via a correspondingly shaped body will. 509 8-2 6/0409 Blank page