This SAE Recommended Practice is applicable to all types of reciprocating engines including two-stroke cycle and free piston engines, and was prepared to facilitate clear understanding and promote uniformity in nomenclature. Modifying adjectives in some cases were omitted for simplicity. However, it is good practice to use adjectives when they add to clarity and understanding.
SAE J604-2011 history
2011SAE J604-2011 Engine Terminology and Nomenclature General
1995SAE J604-1995 Engine Terminology and Nomenclature - General
1986SAE J604-1986 ENGINE TERMINOLOGY AND NOMENCLATURE--GENERAL
1979SAE J604D-1979 ENGINE TERMINOLOGY AND NOMENCLATURE-GENERAL
1958SAE J604-1958 Engine Terminology and Nomenclature - General