초록 ▼

In an internal-combustion piston driving apparatus comprising a housing, a cylinder cover fixed to the housing, a cylinder slidably provided to the housing, a piston reciprocally slidably provided in the cylinder, a combustion chamber defined by the housing, the cylinder, and the piston, a fuel supp

In an internal-combustion piston driving apparatus comprising a housing, a cylinder cover fixed to the housing, a cylinder slidably provided to the housing, a piston reciprocally slidably provided in the cylinder, a combustion chamber defined by the housing, the cylinder, and the piston, a fuel supplying device for supplying fuel to the combustion chamber, and an ignition control device for producing a high voltage to ignite the fuel supplied to the combustion chamber, piston position detector for detecting a position of the piston is provided at the wall of the cylinder between top dead point and bottom dead point of the piston. Besides, a decompression channel is provided so as to connect the combustion chamber placed upper than the top dead point with atmosphere for exhausting a combusted gas in the combustion chamber when the piston passes the piston position detector. The decompression channel is opened and closed by means of slide of the cylinder. In addition, a suction valve is provided to the cylinder cover to be placed lower than bottom dead point of the piston whereby the piston is returned by means of atmospheric pressure after a power stroke of said piston.

대표청구항 ▼

An internal-combustion piston driving apparatus comprising: (a) a housing having an opening at one end thereof; (b) a cylinder cover fixed to said housing; (c) a cylinder fixed to said housing; (d) a piston reciprocally slidably received in said cylinder, a combustion chamber being defined by said h

An internal-combustion piston driving apparatus comprising: (a) a housing having an opening at one end thereof; (b) a cylinder cover fixed to said housing; (c) a cylinder fixed to said housing; (d) a piston reciprocally slidably received in said cylinder, a combustion chamber being defined by said housing, said cylinder, and said piston; (e) means for supplying fuel to said combustion chamber; (f) an ignition device for igniting said fuel supplied into said combustion chamber; (g) valve means for moving a valve between first and second position, said valve means being provided around said combustion chamber; and (h) a decompression channel for establishing communication between said combustion chamber and atmosphere at a place above top dead point of said piston when said valve is in said second position, said decompression channel being closed when said valve is in said first position.