PART LOAD AND VARYING SPEED FUEL CONSUMPTION OF TRACTORS

摘要

Tractor engines operate mostly at part load. A mathematical re-lationship is presented for fuel consumption at part load and at reduced speed, based on reports from official tractor testing. The relationship is compared to a theoretical relationship using the indicated thermal efficiency and the friction mean effective pressure.nThe values for the tested tractors indicated a considerable dif¬ference between the tractors. Average values were determined.