02-01-2020 дата публикации
Номер: US20200003112A1
An internally cooled internal combustion piston engine and method of operating a piston engine is provided, with the combination of liquid water injection, higher compression ratios than conventional engines, and leaner air fuel mixtures than conventional engines. The effective compression ratio of the engines herein is greater than 13:1. The engines may employ gasoline or natural gas and use spark ignition, or the engines may employ a diesel-type fuel and use compression ignition. The liquid water injection provides internal cooling, reducing or eliminating the heat rejection to the radiator, reduces engine knock, and reduces NOx emissions. The method of engine operation using internal cooling with liquid water injection, high compression ratio and lean air fuel mixture allow for more complete and efficient combustion and therefore better thermal efficiency as compared to conventional engines. 125-. (canceled) This application is a continuation application of co-pending U.S. patent application Ser. No. 14/949,523 filed Nov. 23, 2015, which is a continuation application of U.S. patent application Ser. No. 14/598,935 filed Jan. 16, 2015, now U.S. Pat. No. 9,194,339 issued Nov. 24, 2015, which is a continuation application of U.S. patent application Ser. No. 13/444,533 filed Apr. 11, 2012, now U.S. Pat. No. 8,935,996 issued Jan. 20, 2015, which has been filed as U.S. Reissue patent application Ser. No. 15/410,356 filed Jan. 19, 2017, which application claims priority under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application No. 61/474,240, filed Apr. 11, 2011, the disclosure of which is hereby incorporated by reference in its entirety.The present disclosure pertains to the field of internal combustion engines, including engines for motor vehicles, railways, ships, aircraft, or electrical power generation.This disclosure pertains to internal combustion engines that operate far more efficiently than conventional engines. The principles set forth herein can be used ...
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