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:
Jan. 23, 2007
Filed:
May. 16, 2005
Applicants:
Walt Froloff, Aptos, CA (US);
Kenneth C Miller, Aptos, CA (US);
Inventors:
Walt Froloff, Aptos, CA (US);
Kenneth C Miller, Aptos, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01); F02D 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A variable compression ratio internal combustion engine is programmably configured to operate in a plurality of compression ratios. Internal combustion engines with electronically controlled engine components that include electronic valve operation are programmed to operate individual engine cylinders with component states and stoke sequences that provide variable compression ratios by creation of a virtual cylinder within a physical cylinder. Cylinder volume dictates maximum compression ratio, which acts as a ceiling for the variable compression ratio that can be provided.