Abstract: A three-wheeled vehicle has a pair of right and left wheels provided at either end of the vehicle body and a single wheel provided at the other end of the vehicle body. The pair of wheels are spaced from each other laterally with respect to the vehicle body. The three-wheeled vehicle is further provided with a steering mechanism for steering the pair of wheels, and a mechanism which cooperates with the steering mechanism for displacing the single wheel substantially laterally with respect to the vehicle body and in the direction opposite to the direction of turning of the vehicle caused by the steering operation of the steering mechanism. In another embodiment the single wheel is also pivoted in a direction opposite the turning of the pair of wheels.

Abstract: A three-wheeled motor vehicle having a vehicle body and an engine mounted on the vehicle body. A pair of laterally spaced wheels is disposed on the front of the vehicle body and a single wheel is disposed on the rear. The speed change transmission has a shift spindle on the same side as the vehicle door and a shift control mechanism includes a shift lever in the driver's compartment on the other side of the vehicle with a laterally extending rod mounted on the floor to transmit the shift selection motion to an operating wire and then to the transmission.

Abstract: A display system for a vehicle utilizing two vehicle operating parameters as input signals on axes of a different direction on a display surface. The position on the display surface designated by the two signals is displayed.

Abstract: A vehicle in which a pair of driving wheels are disposed on both left and right sides of a vehicle body frame, the vehicle comprising a power unit composed of an engine and a pair of transmission devices extended from both ends of the engine to individually transmit power of the engine to the driving wheels, and a casing for the power unit supports the driving wheels and is supported on the body frame inserted between both the transmission devices.

Abstract: A three-wheeled motor vehicle has a vehicle body on which two front wheels and a single rear wheel are rotatably mounted. The vehicle body includes a front portion covering the two front wheels and having a wide and flat shape, and a rear portion having a driver's compartment and covering the rear wheel, the rear portion being narrower than the front portion and progressively higher in a rearward direction of the vehicle body. The front and rear portions of the vehicle body include slanted continuous side surfaces tapered toward a longitudinal axis of the vehicle body in the rearward direction thereof.

Abstract: An engine employing oval pistons and cylinders with dual connecting rods for each piston. The connecting rods are connected to each piston by a common wrist pin and to a composite crankshaft. The crankshaft includes a main bearing between the connecting rods of each of the pistons. It also includes a middle portion associated with each piston including two crank pins and the shaft therebetween for receipt of the centrally located main bearing.

Abstract: A piston and cylinder are oblong in cross section with the major dimension at right angles to the crankshaft axis. An inlet valve and an exhaust valve are mounted near opposed end portions of the oblong cylinder with a spark plug arranged along the minor centerline, either between the valve or displaced laterally from the major centerline of the cylinder. The valves are symmetrically inclined with respect to the central axis of the oblong cylinder, and are operated from separate camshafts. The combustion chamber roof is a concave surface having both major and minor centerline surface elements which employ radii of curvature greater than the radius of curvature of the cross-sectional ends of the oblong cylinder.

Abstract: An engine employing oval pistons and cylinders with dual connecting rods for each piston. The connecting rods are connected to each piston by a common wrist pin and to a composite crankshaft. The crankshaft includes a main bearing between the connecting rods of each of the pistons. It also includes a middle portion associated with each piston including two crank pins and the shaft therebetween for receipt of the centrally located main bearing.

Abstract: An internal combustion engine is provided with at least one oblong cylinder and an oblong piston mounted to reciprocate therein. A piston ring is positioned within an annular piston ring groove formed in the piston, the piston ring including an outer ring in contact with the cylinder, an inner ring and a biasing means such as a corrugated plate spring positioned between the inner ring and the outer ring. The inner ring is normally slightly spaced apart from the inner periphery of the piston ring groove so that the piston ring is allowed to be laterally displaced the amount of such spacing during piston oscillation, thereby providing improved sealing between the piston and cylinder.

Abstract: A four cylinder four cycle spark ignition engine has oblong pistons each mounted to reciprocate in sliding contact with an oblong cylinder. Intake valves in a series are positioned in a straight line on one side of and parallel to a central plane extending through the longest dimension of each oblong cylinder. Exhaust valves in a series are positioned in a straight line on the other side of and parallel to that central plane. A cam shaft operates all of the intake valves and another cam shaft operates all of the exhaust valves.

Abstract: Each cylinder of an internal combustion spark ignition V-8 engine is provided with a main combustion chamber and an auxiliary combustion chamber connected by a torch opening. A lean air-fuel mixture is supplied to the main combustion chambers and a rich air-fuel mixture is supplied to the auxiliary combustion chambers. An exhaust reaction chamber assembly is positioned between the two banks of cylinders and is provided with a liner having a first reaction chamber therein. Four exhaust tubes each connected to receive exhaust gases from two adjacent cylinders project into the reaction chamber and each has a discharge end in close proximity and in substantial alignment with the discharge end of another exhaust tube so that exhaust gases discharged by each exhaust tube enter another exhaust tube and also enter into the first reaction chamber. The first reaction chamber discharges into an enclosing second reaction chamber from which heat is derived to vaporize both of the air-fuel mixtures.

Abstract: Apparatus to detect deceleration of a motor vehicle having an automatic transmission includes a first electrical switch operated by release of pressure from the accelerator pedal and a second electrical switch operated by application of pressure to the brake pedal. A detector device having an output signal is connected in parallel with the electric switches. The output signal of the detector device is employed to vary the spark timing of an internal combustion engine. In a modification, the electric switches are connected in series.

Abstract: An internal-combustion spark-ignition V-8 piston engine has an exhaust gas reaction chamber body positioned between its two banks of cylinders. Each cylinder has a main combustion chamber communicating with an auxiliary combustion chamber by means of a torch opening. A main intake manifold with branching portion over the reaction chamber communicates with main intake passages to supply a lean air-fuel mixture to the main combustion chambers. An auxiliary intake manifold with branching portion directly below the central portion of the branching portion of the main intake manifold communicates with auxiliary intake passages to supply a rich air-fuel mixture to the auxiliary combustion chambers. Exhaust passages supply hot exhaust gases from the cylinders to exhaust gas conduits, each of which receives hot exhaust gases from two adjacent cylinders and projects through an insulated wall of the reaction chamber to discharge into it toward an end wall thereof.