METHOD OF DETERMINATION OF HOURLY FUEL ENDURANCE OF TRACTIVE TRANSPORT FACILITY INTERNAL COMBUSTION ENGINE Russian patent published in 2006 - IPC F02M65/00 G01M15/00 

FIELD: manufacture of engines; tests of internal combustion engines.

SUBSTANCE: proposed method includes measurement of radius "r_w" of prime mover and total weight G. Magnitude of torque M_en is changed by loading brake. Then, magnitude of torque M_en and number of revolutions "n" set by means of regulator for each magnitude of torque M_en are measured. Fuel consumption for each magnitude of torque is measured and control characteristic is plotted. Thrust force is determined. Theoretical speed of tractive transport facility V_tr is determined by the following expression V_tr=0,377·r·n/1, slippage coefficient δ of tractive transport facility is determined, actual speed V of tractive transport facility is determined by the following expression V=V_tr-(1-δ),magnitudes thus obtained are converted into electrical signals which are shaped and directed to computer and dependence of hook force P_h versus engine torque M_g is plotted, dependences of theoretical speeds V_tr of tractive transport facility for various transmissions are plotted, dependence of slippage coefficient δ versus force thrust P_h on transport facility hook and dependence of actual speed V of transport facility versus hook thrust force P_h are plotted and signal for determination of maximum thrust force P_h.max. on transport facility hook and respective speed V_max1 is formed; said force is created by prime movers of transport facility at total preset weight with slippage coefficient taken into account. After determination of maximum thrust force P_h.max. on tractive facility hook for each transmission of transport facility signals are shaped and directed to computer for determination of respective magnitude of torque M_en for maximum thrust force P_h.max. on transport facility hook from dependence of hook thrust force P_h versus torque M_en, after which signal is shaped and directed to computer for determination of hourly fuel consumption G_f.max. versus maximum thrust force on transport facility hook by magnitude of torque M_en1 from control characteristic of fuel consumption G_f. Fuel endurance q_100.max. of transport facility by maximum fuel consumption per 100 km of run for maximum thrust force P_h.max. on hook and preset transmission is determined by hourly fuel consumption G_f.max. from the expression q_100.max=100·G_f.max/γ·V_{max 1} , where γ is fuel specific weight.

EFFECT: enhanced efficiency of use of internal combustion engine due to enhanced accuracy of measurement of fuel consumption.

2 cl, 1 dwg