Internal-combustion engines – Rotary – Only combustion and expansion of charge in engine
Reexamination Certificate
2000-02-10
2001-10-16
Nguyen, Hoang (Department: 3748)
Internal-combustion engines
Rotary
Only combustion and expansion of charge in engine
C418S191000
Reexamination Certificate
active
06302079
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of The Invention
The present invention relates to rotary motors, and more particularly, to an improved rotary piston and motor having a regulated air intake and methodology. The regulated intake mechanism allows the rotary motor to efficiently achieve maximum revolutions per minute (rpm). Additionally, the rotary motor shown is designed to accommodate a dual ignition mechanism. The combination of a dual ignition mechanism with a regulated intake applied to a rotary motor results in a superior motor design with respect to rpm and overall efficiency.
2. Background Information
Reciprocating engine motors on the market today generally involve pistons which are thrust in one direction as a result of combustion. Generally, where one piston is thrust in an upward direction a second is thrust downward. However, the pistons may rest at non-vertical angles with respect to one another resulting in a more side to side movement. Whatever the case, once a piston reaches a maximum velocity it must come to a complete stop and be forced in the opposite direction. This process repeats over and over again as the engine runs. The fundamental design of a motor with this version of reciprocating parts is inefficient. This version of a reciprocating parts motor involves an inherent defect in that every stroke of a piston requires that it come to a complete stop.
There is a long felt unmet demand for more efficient internal combustion reciprocating parts motors. The use of rotary motors, often referred to as Wankel motors, is known in the prior art in various forms. Of those found, the closest patent to the present invention was issued to Knickerbocker. Knickerbocker, U.S. Pat. No. 3,923,014 discloses a rotary motor utilizing a pair of complimentary rotors in place of a typical piston design. However, Knickerbocker fails to disclose the regulated intake necessary to achieve even a modest level of efficiency. Without a controlled intake mechanism an ignited fuel and air mixture will enter the air supply and significantly decrease its effectiveness. The Knickerbocker design reveals other deficiencies as well. For example, it cannot accommodate dual ignition without substantial modifications.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an efficient rotary motor.
It is another object of the present invention to provide a rotary motor utilizing a controlled intake which preserves the pressurization of an adjacent plenum.
It is another object of the present invention to provide a rotary motor capable of efficiently utilizing dual ignition within a single piston assembly.
It is yet another objective of the present invention to provide a rotary motor providing sufficient combustion area in all rotary chambers so as to maximize overall viability of the motor.
It is a further object of the present invention to provide a rotary motor maximizing removal of spent fuel based on positioning of the exhaust.
It is a further object of the present invention to provide a rotary motor having a balanced design with minimal vibration.
It is a further object of the present invention to provide a rotary motor having a high degree of utility as a pump.
It is a further object of the present invention to provide a rotary motor designed with efficient means of cooling and oiling.
It is a further object of the present invention to provide a first piston rotary assembly designed to work in conjunction with a second piston rotary assembly to provide a four ignition rotary motor.
It is another object of the present invention to provide a method of operation for a rotary motor to increase efficiency over the known art.
In satisfaction of these and related objectives, the present invention provides a novel rotary motor with increased efficiency and maximum performance resulting from a particularly designed controlled intake mechanism and dual ignition means. Other features of the motor add to its overall efficiency and performance as disclosed herein.
REFERENCES:
patent: 1704938 (1929-03-01), Gardes
patent: 3923014 (1975-12-01), Knickerbocker
patent: 4747762 (1988-05-01), Fairbairn
patent: 6079386 (2000-06-01), Barker et al.
Gunn, Lee & Keeling
Nguyen Hoang
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