Lightweight engine

Abstract

Weight saving of industrial engines. Making pollution-causing material harmless. Improvement in thermal efficiency and reduction of operating cost. Arrangement To produce compressed air, air is pressurized by a turbo charger or a super turbo charger and stored in an air tank. The air is fed, at an optimum temperature and a given pressure, to a cylinder liner shortened according to the pressure. Valves for taking in and out air are hydraulically driven for individual opening and closing according to a computer-aided optimum valve timing diagram. The engine is controlled under high-oxygen high-temperature lean burn condition, and a hydrocarbon is injected into an exhaust manifold to reduce peroxides, thus making pollution-causing material harmless. Effects Reduction of operating cost. Increase in carrying capacity due to the weight reduction of the vehicle body in the case of a vehicle-mounted engine.

Description

TECHNICAL FIELD [0001] This invention relates to the technology of cars, construction machineries, marine vessels, and electrical generators, which achieves great lightening the engine and the purification of the exhaust gas at the same time. BACKGROUND ART [0002] A pressurizing type engine using the turbo-charger having the intercooler with the low condensation was used for the fighter aircraft in 1940. Thereafter, it was applied for the motor racing such as F1. However, there are no technologies using the turbo-charger for the purpose of lightening the engine up to now. In the past, the principal object of the turbo-charger has been the improvement of the output power, and the purification of the exhaust gas.[0003] There ware few ideas that try to use the exhaust gas in the prior art. There are only ideas such as the actuation of the turbo-charger by the exhaust gas, or the recirculation of the exhaust gas controlling burning temperature to be lower in the liner, etc. [0004] In th...

AI Technical Summary

Benefits of technology

[0018] According to the present invention, pressurized air or fuel mixture gas with 2 to 4 times or more makes the stroke distance of the piston short. Decreasing the momentum in the compression process improves the thermal efficiency of the engine.

[0020] After firing in the combustion chamber of the engine, gas is exhausted from the liner with the high pressure and the high temperature compared with the inhaled gas. It is called exhaust gas hereafter. The combustion can be gone with the lean condition compared with the theoretical air fuel ratio, because the temperature at the combustion can be set with the expectation that the temperature of the liner will fall by vaporization of liquid fuel. The exhaust gas rotates turbochargers and is released into the atmosphere through the muffler. Therefore, the pressure of the liner decreased to be about 1 atmosphere immediately. So, blow-by of the inhalation gas is not concerned when the valve diagram is set, and the valve can be opened and shut with the best thermal efficiency.

[0022] The intake valve and the exhaust valve are controlled directly by using the oil pressure, so the conventional valve operation using the camshaft is discontinued and the direct operation using the microcomputer. The electrical control allows the setting of the best valve timing from the low rotation to the high rotation.

Problems solved by technology

However, there are no technologies using the turbo-charger for the purpose of lightening the engine up to now.

Therefore, a mixture ratio of the fuel of the engine could not be set most appropriate theoretically.

In addition, the environmental standards and the fuel efficiency standards of cars are made strict worldwide, and the technology that saves weight of engine and purifies the exhaust gas are still incomplete.

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