초록 ▼

An internal combustion engine in which each cylinder or combustion volume includes a separate ignition chamber which communicates with the main combustion chamber through a relatively narrow channel or channels. The combustible mixture is delivered to the separate chamber exclusively through these c

An internal combustion engine in which each cylinder or combustion volume includes a separate ignition chamber which communicates with the main combustion chamber through a relatively narrow channel or channels. The combustible mixture is delivered to the separate chamber exclusively through these channels by the compressive action of the piston and is ignited there by a suitable electrical spark, for example. There is no additional admission of fuel or fuel mixture to the separate ignition chamber. The channel or channels terminate in the ignition chamber in such a manner, for example, tangentially, that one or more vortices are generated in the chamber prior to ignition. The channels are so oriented that the emerging igniter flames are directed to potential hot cells in the main combustion chamber where auto-ignition could occur.

대표청구항 ▼

In an internal combustion engine which includes a housing, means in said housing defining a main combustion chamber, means for generating a combustible vapor mixture and means for admitting said combustible vapor mixture to said main combustion chamber, the improvement comprising: an ignition chambe

In an internal combustion engine which includes a housing, means in said housing defining a main combustion chamber, means for generating a combustible vapor mixture and means for admitting said combustible vapor mixture to said main combustion chamber, the improvement comprising: an ignition chamber defined within said housing and having an arcuately shaped side wall, said ignition chamber being disposed separate from said main combustion chamber and communicating therefrom through two oppositely disposed channels arranged tangentially with respect to said arcuately shaped side wall which terminate in said ignition chamber in such a manner that the flow of combustible vapor from said main combustion chamber into said ignition chamber generates therein two vortices rotating in opposite directions; said main combustion chamber having a minimum volume at the top of the compression cycle which is at least 5 times as great and preferably 10 to 25 times as great as the volume of said ignition chamber; said channels having a flow cross section of between 0.1 to 0.4 and preferably between 0.15 to 0.3 of the cross-sectional area of said ignition chamber; whereby the passage of said vapor mixture into said ignition chamber along said ignition chamber side wall creates therein a vortex flow of homogeneous vapor without supplementary fuel admission to said chamber and without charge stratification.