Two-way rotary supercharged, variable compression engine
First Claim
1. An internal-combustion engine having:
- at least one cylinder with a supercharge section of the cylinder at a supercharge end of the cylinder;
a power section of the cylinder at a power end of the cylinder having a selectively smaller diameter than a diameter of the supercharge section of the cylinder;
a piston having a power section of the piston in sliding-seal contact with inside peripheral walls of the power section of the cylinder and a supercharge section of the piston in sliding-seal contact with inside peripheral walls of the supercharge section of the cylinder;
exhaust ports at an exhaust end of the power section of the cylinder;
a transfer channel positioned circumferentially at an outside periphery of a bottom end of the supercharge section of the cylinder;
a plurality of outlet transfer ports in fluid communication from a low portion of the supercharge section of the cylinder to the transfer channel;
a plurality of inlet transfer ports in fluid communication from the transfer channel to a selectively higher portion of the supercharge section of the cylinder;
a one-way-inlet-valved port in the supercharge section of the cylinder;
an inlet port positioned centrally in a head of the piston;
an intake transfer conveyance within the piston positioned in fluid communication between the supercharge section of the cylinder and the intake port that is positioned centrally in the head of the piston;
an ignition means proximate a head of the cylinder; and
rotational power-takeoff means in rotational-power-takeoff relationship to the piston and the cylinder.
0 Assignments
0 Petitions
Accused Products
Abstract
A variable-compression internal-combustion engine has a two-stage cylinder with a relatively large diameter at a first-stage, supercharge end, which is also a power-takeoff end, than at a second-stage, combustion end of the cylinder. Intake air is drawn into the first-stage, supercharge end of the cylinder by a matching larger-diameter, first-stage, supercharge end of a two-stage piston during a compression stroke of a two-stroke cycle of the two-stage piston. During a power stroke, intake air is directed into and contained under pressure in an air-transfer passage that is positioned circumferentially and externally around an outside periphery of a bottom end of the first-stage cylinder. At a bottom end of the power stroke, intake air is directed from the air-transfer passage into a transfer conveyance extended from the supercharge end to tile second-stage head of the two-stage piston where the intake air is venturi-accelerated to the second-stage head of the two-stage cylinder while exhaust escapes through exhaust ports at a bottom of the second stage of the two-stage cylinder. Cylinder heads can be variable in distance from top dead center of piston travel to regulate compression ratio as desired for different operating conditions. Reciporcative travel of a plurality of the two-stage pistons is convened to rotary motion preferably by a pinch plate in working relationship to an angled cam plate. The pinch plate cam-drives the angled cam plate with a large contact surface for long wear life. Other rotational means can be employed.
-
Citations
15 Claims
-
1. An internal-combustion engine having:
-
at least one cylinder with a supercharge section of the cylinder at a supercharge end of the cylinder; a power section of the cylinder at a power end of the cylinder having a selectively smaller diameter than a diameter of the supercharge section of the cylinder; a piston having a power section of the piston in sliding-seal contact with inside peripheral walls of the power section of the cylinder and a supercharge section of the piston in sliding-seal contact with inside peripheral walls of the supercharge section of the cylinder; exhaust ports at an exhaust end of the power section of the cylinder; a transfer channel positioned circumferentially at an outside periphery of a bottom end of the supercharge section of the cylinder; a plurality of outlet transfer ports in fluid communication from a low portion of the supercharge section of the cylinder to the transfer channel; a plurality of inlet transfer ports in fluid communication from the transfer channel to a selectively higher portion of the supercharge section of the cylinder; a one-way-inlet-valved port in the supercharge section of the cylinder; an inlet port positioned centrally in a head of the piston; an intake transfer conveyance within the piston positioned in fluid communication between the supercharge section of the cylinder and the intake port that is positioned centrally in the head of the piston; an ignition means proximate a head of the cylinder; and rotational power-takeoff means in rotational-power-takeoff relationship to the piston and the cylinder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification