Patent 4031867 Issued on June 28, 1977. Estimated Expiration Date: June 28, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
123/430, Stratification in combustion chamber123/299, Using multiple injectors or injections123/431, Having a single combustible mixture inlet combined with means for injecting additional fuel into the combustion chamber60/278, Material from exhaust structure fed to engine intake60/320Exhaust gas or exhaust system element heated, cooled, or used as a heat source
An internal combustion engine combustion process in which fuel injected from an injection nozzle takes the form of liquid droplets distributed in a combustion chamber so that a slow burning of the combustion at relatively low maximum combustion temperature is achieved. An exhaust system of the engine has a section which acts as a heat insulator. This construction provides a proper environment for oxidation of exhaust gases.