DE80120C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

CLASS 77: Sports.

The present invention aims to provide a further development of the patent No. 77060 protected toy gas engine, as the latter for the purpose of sucking in the Fresh air and exhausting the combustion residues through the arrangements a device are replaced, which due to greater simplicity for the particular purpose is more suitable.

As is apparent from FIGS. 1 and 2 of the drawing, is in the cover b of the cylinder only arranged a t the type of Hülfsventils at Pat. No. 77060 executed Lufteinlafsventil which is rectilinearly displaceable in the perforated valve body.

The same is done in the same way as the auxiliary valve of the main patent when proceeding of the piston is opened by the suction of the latter, but by the explosion closed.

In order to be able to use this valve also to exhaust the combustion residues, it is controlled by means of a disk seated on the shaft k , which slides with its flat side over the head t _{l of} the valve during rotation and depresses the latter.

The shape of this disk shown in Fig. 3 and 4 is chosen so that it only acts on the valve head during the piston retraction and keeps the valve open.

The device described therefore functions in the following way:

When the piston moves forward, the suction effect of the piston first opens the valve t and the amount of air required to form the gas-air mixture is sucked in. In the now following explosion respectively. Expansion, the valve is closed by the pressure prevailing in the cylinder and is maintained in this position during the further forward movement of the piston. When the latter decreases, the disc Z ₁ presses on the valve head fj and keeps the valve open until the combustion residues have been exhausted.

The regulation of the air supply can be carried out in a manner similar to that of patent no Way can be achieved that the stroke of the valve is changed by an adjusting screw.

To secure the movement of the valve, the same can be done in the rest position by a weak spring to be pressed onto its seat.

Claims (1)

Patent claim: An embodiment of the protected Patent No. 77060 toy -. Gas engine, characterized in, that sowohldas sucking the fresh air as the exhaust pipes of the combustion residues by a mounted at the rear Cylinderende valve (t) takes place, which behufs introduction of fresh air through the suction effect of the foregoing piston, and in order to exhaust the combustion residues by means of a correspondingly shaped disc (I ₁ ) arranged on the control shaft. 1 sheet of drawings.