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:
Jul. 10, 2001
Filed:
Jan. 09, 1998
David Richard Worth, Shenton Park, AU;
Orbital Engine Company (Australia) Pty Limited, Balcatta, AU;
Abstract
In introducing fuel to a combustion chamber, the end of air (EOA) is established in the crank angle domain. For example, determination of the average or raw speed is utilize to determined an appropriate crank angle for the closing of the delivery injector (EOA). Once the end of air (EOA) is established in the crank angle domain, the start of air (SOA) may be set in the time domain (by a processor) at a time prior end of air (EOA) by duration equal to the time which the delivery is required to remain open. The required pulse width for the fuel metering injector and the desired fuel-air delay time may then be subtracted from the start of air (SOA) to obtain the start of fuel (SOF) and end of fuel (EOF) in the time domain. Other ways may be utilized to calculate SOA, SOF and EOF. For example, SOA may be estabished in the crank angle domain.