A pneumatic motor with screw drive

Abstract

The invention discloses a pneumatic engine adopting a spiral rod for transmission and belongs to the field of new-energy pneumatic engines. The device comprises two parts, namely a spiral rod transmission mechanism and a large-bore cylinder, wherein the spiral rod transmission mechanism is positioned above the cylinder, the spiral rod transmission mechanism comprises the spiral rod with opposite rotation directions of threads at the two ends, a gear, a one-way bearing, a bolt, an inner ring of the one-way bearing contacts an external thread of the spiral rod, an outer ring of the one-way bearing is fixed on the side end surface of the gear by the bolt, the spiral rod is subjected to the push-pull motion of a piston, and the upward and downward movements of the spiral rod act on the gear through the one-way bearing respectively to do work against an output shaft. The pneumatic engine disclosed by the invention reduces the influence of pressure changes in a gas storage tank on output of the engine, simultaneously utilizes atmospheric pressure to do work, and upgrades the energy utilization rate of compressed air, so that economy and efficiency of the pneumatic engine are improved.

Description

technical field [0001] The invention relates to a pneumatic motor driven by a screw rod, which belongs to the field of new energy pneumatic motors. Background technique [0002] The emergence of the internal combustion engine has greatly promoted the progress of human society. However, with the rapid entry of cars into ordinary people's homes, energy issues and environmental issues have become increasingly prominent. Countries in the world have begun and have achieved results in the field of new energy vehicles. Our country has already had electric vehicles and hybrid vehicles. It has the achievement of independent intellectual property rights, but it has just started in the research and development of pneumatic vehicles powered by compressed air. [0003] Pneumatic engine refers to the use of compressed air or liquid nitrogen as a power source to drive the car, which can be said to be a zero-emission car. However, the expansion and heat absorption of the working medium of...

AI Technical Summary

Problems solved by technology

However, the pure pneumatic engine working fluid expands and absorbs heat, which causes the temperature of the cylinder wall, cylinder head and other components to drop, and even frost, which has the disadvantages of low output power and low energy utilization rate.

[0004] Most of today's pneumatic vehicles use piston-type pneumatic engines. The compressed air expands in the cylinder to push the piston to do work, and the return exhaust is exhausted under the action of the inertial force of the crankshaft and flywheel. Every time the compressed air expands to do work, it must overcome the atmospheric pressure or even higher. pressure, high energy consumption

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