초록 ▼

A cam operated internal combustion engine of piston type positive displacement variety, having novel piston-to-cam connecting means. The pistons are cam operated to optimize the aspiration, combustion and expansion process. Executed in axial and radial cam versions, with alternatively a two cycle, f

A cam operated internal combustion engine of piston type positive displacement variety, having novel piston-to-cam connecting means. The pistons are cam operated to optimize the aspiration, combustion and expansion process. Executed in axial and radial cam versions, with alternatively a two cycle, four cycle or novel three cycle mode of operation. The arrangements provide advantages in manufacturing and construction, as well as improved thermal efficiencies.

대표청구항 ▼

In an internal combustion engine having a separate compressor for compressing an air charge to a fixed precombustion pressure, a cylinder block having a number of cylinders with a number of pistons, one piston in each cylinder, said pistons operatively connected to cause rotation of a shaft rotatabl

In an internal combustion engine having a separate compressor for compressing an air charge to a fixed precombustion pressure, a cylinder block having a number of cylinders with a number of pistons, one piston in each cylinder, said pistons operatively connected to cause rotation of a shaft rotatably supported in said block with movement of said pistons, and a cylinder head means secured to said block to close said cylinders, said cylinder head means including cylinder heads associated with and closing each cylinder and freely moveable between a fixed end position and an adjustable end position, each cylinder head sliding within a bore of said cylinder head means to vary a volume of a combustion chamber defined between each cylinder head and the piston in said associated cylinder, each cylinder head including an admission port communicating with said cylinder and said separate compressor for admission of said air charge into said combustion chamber, an admission valve for closing of said admission port, and an admission valve mechanical actuator including a connecting means moveable with each cylinder head and in engagement with a cam actuated valve control mechanism secured in said cylinder block for opening of said admission port by movement of said admission valve determined by said cam actuated valve control mechanism, said admission valve when seated with said admission port causes said cylinder head to move to said fixed end position due to a pressure bias created by said air charge prior entry into said cylinder and exerted on said cylinder head as said piston moves toward said cylinder head in an exhaust stroke to increase positive exhaust, said adjustable end position of said cylinder head defining a desired combustion chamber volume, said cylinder head being biased to move to said adjustable end position by said compressed charge when said admission valve is open, said fixed end position being determined by a stop face provided in said bore for engagement with a stop face provided on said cylinder head, said adjustable end position being determined by a mechanical actuator provided with a stop face for contact with a further stop face of said cylinder head, said mechanical actuator adjusting the position of the stop face thereof which determines said desired combustion chamber volume, the power output of said engine being controlled by controlling said mechanical actuator by means of adjusting said combustion chamber volume.