Abstract:
A two piece intake or exhaust valve for internal combustion engines comprising an inner and an outer valve which can be designed with orbicular heads. The inner valve including a stem of a smaller outside diameter than the outer valve. The outer valve including a hollow stem large enough to accept the inner valve, and also including a valve seat in the center of its bottom face to seat the inner valve. The head, or base, being equipped with one or more vents which communicate between the intake port and the combustion chamber and being releasably opened and sealed off by the inner valve. The vented valve unit incorporating an independent actuation means by way of pressure differentials created by the induction cycle, and/or directional inertia factors of the mechanically controlled valve element.
Abstract:
An inlet and exhaust valve in internal combustion engines is described in the form of a vessel, designed with a large through cavity in its interior. The valve has two guiderods (8, 9) and two seating zones (1, 2), one on its internal side in which a conventional valve is fitted, and the other (1) on its external side where it itself fits onto the cylinder head. The design of this valve allows it to have a large dimension and from which it adjusts on its inside, factors which result in an increase in the combustibility of the gases, improving the efficiency of the engine. This improvement brings with it in addition a reduction in the emission of pollutant gases.
Abstract:
Combustion engine having a cylinder and a piston movable therein and having a spark plug for igniting the combustible fuel. Three valves are concentricly located coaxially with the spark plug for separately controlling the flow of incoming fresh air to the cylinder and the flow of the fuel mixture to the cylinder and the flow of the exhaust gases from the cylinder. The engine presents the necessary valve seat for the exhaust valve, and the other two valves are also provided with valve seats, and springs urge each of the valves toward their respective seated positions. Also, push rods and rocker arms are arranged for opening the valves, as required. The entire arrangement provides for introducing a layer of clean air next to the cylinder wall and then introducing the fuel mixture into the center of the cylinder and adjacent the spark plug. Upon firing, the flame is primarily confined by the boundary of fresh air, and the flame is thus away from the cylinder wall. The exhaust gas then moves from the region adjacent the cylinder wall and out of the cylinder.
Abstract:
A four-cycle internal combustion engine having an intake and exhaust valve which operate in response to gas pressure generated in the engine cylinder during the operating cycle of the engine, rather than by external cams mounted on a camshaft. Pressure responsive control valves mounted on the cylinder admit fresh charges of air and fuel beneath the piston in the cylinder during its compression and exhaust strokes and the piston pumps these fresh charges back into the cylinder above the piston through the intake valve during the intake stroke, resulting in twice the air charge of a conventional engine. At the end of the power stroke another pressure responsive valve opens to relieve the pressure generated in the cylinder after ignition, to enable gas pressure previously generated in an air chamber above the cylinder and acting on the exhaust valve to open it to expel the burnt charge. The exhaust passage of the engine is also located so as to place the burnt gases in heat exchange relation with the fresh charge to preheat the charge, increasing the thermal efficiency of the engine.
Abstract:
The invention relates to a valve arrangement containing at least two valves (2 and 3) with a body (7,4) and a seat (8,6). The valves (2 and 3) are located inside of each other, whereby the outer valve (3) contains a hollow body (4) with a passage (5), whereby a part of this body (4) forms the seat (8) for the body (7) of the inner valve (2) located inside the body (4).