This International Standard describes and systematically defines the principal technical characteristics of hydraulic pumps, motors and integral transmissions.
It allots letter symbols to these characteristics, and indicates how they can be more clearly defined by suffixes correspond-ing to particular cases. It also lists an analysis of parameter dimensions.
IS 11147-1984 history
1985IS 11147-1984 Recommendations for parameter definitions and letter symbols for hydraulic fluid power pumps, motors and integral transmissions