The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2002
Filed:
Aug. 31, 2000
Applicant:
Inventors:
Yukio Otake, Suntou-gun, JP;
Shinichiro Tanaka, Mishima, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 1/136 ;
U.S. Cl.
CPC ...
B64C 1/136 ;
Abstract
An airplane engine control method and apparatus are provided which form an engine control system easy to operate, which set a reciprocating engine of an airplane in such an operating condition in a partial power mode as to maximize the efficiency of the airframe and the engine as a whole, and which enable setting of suitable partial power in a reciprocating engine with a variable-pitch propeller in such a manner that, when predetermined partial power is set, a relationship expressed by Te ∝ &rgr;N is established with respect to the engine torque (Te), the number of engine revolutions (N) and the atmospheric density (&rgr;).