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:
May. 31, 2005
Filed:
Jan. 09, 2004
John L. Loth, Morgantown, WV (US);
John L. Loth, Morgantown, WV (US);
Other;
Abstract
The herein disclosed Compression Ignition By Air Injection (CIBAI) cycle and internal combustion engine has following advantages over Otto and Diesel cycles: higher thermal efficiency and operating like a stratified charge engine on lean mixtures. More reliable by lack off: spark ignition, high-pressure fuel pump and injectors; throttle valve and cold starting problems. Only one valve is required in addition to the usual I.C. engine components. However the CIBAI cycle requires one or more pairs of piston/cylinders to operate together in phase. During the compression stroke a closed cylinder-connecting valve isolates the cylinders. One cylinder compresses an air-fuel mixture to below knock level. The other cylinder compresses only air to high pressure and temperature. Near top dead center, the cylinder-connecting valve opens allowing the high-pressure air to compress, heat and ignite the pre-evaporated air-fuel mixture. This valve remains open during following power stroke and scavenging of exhaust products.