Rotary engine and rotary unit thereof
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Dec 1, 2011
filing date -
Dec 16, 2010
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Abstract
A rotary engine and a rotary unit thereof are provided. The rotary engine includes an air-compressed rotary unit provided in an engine body and a power rotary unit moving in coordination with the air-compressed rotary unit. Each rotary unit includes an outer rotor and an inner rotor provided eccentrically within the outer rotor, inner teeth constituted by convex arc surfaces are formed in an inner circumference of the outer rotor and outer teeth constituted by concave arc surfaces are formed in an outer circumference of the inner rotor, such that intake and compression strokes of the air-compressed rotary unit and power and exhaust strokes of the power rotary unit are achieved during the engagement and disengagement between the inner and outer teeth. The rotary engine has a compact structure, a smooth output torque, a high power per liter, and can be widely used in fields of vehicle, power machinery, etc.
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