Page 134 - Mechanical Engineer's Data Handbook
P. 134

THERMODYNAMICS AND HEAT TRANSFER                                                  123

                                                                      ,Rich











           Mechanical efliclency ' s brake power               Crank angle, e

                                                       Elfa 01  mixture strength MI p -e -am








                                                     4
                                                     P
                 BMEP vs toque




                                                        1
                                                                  speed. N
                                                       Power, MEP, mechanical efficiency vs speed

                                                                     Max. '\i




                                N
               VOlUmenie efficiency vs speed                            power




                                                               Max. economy








                                 V
            Effect of mixture strength M p - vdisgram
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