Driven Camshaft Power Mechanism of the Vehicle Diesel Engine Fuel Pump

Abstract

The article deals with the actual problem associated with poor-quality operation of vehicle engines with incomplete loading and operation at partial high-speed modes. It is shown that such engine operating modes make up the bulk of the time, especially when the vehicle operates in urban conditions. Poor engine performance in these modes results in decline in fuel economy and environmental performance. To improve the technical performance of diesel engines, a device is proposed that allows control the uneven rotation of camshaft of vehicle diesel fuel pump. The kinematic schemes of the angular velocity transducers for fuel pump camshaft power mechanism, the kinematic and power drive calculation method are developed.

Determination Coefficient of Stress Concentration Using a Conformed Display on a Circle of a Single Radius

“…, after which, considering (21) it follows that А = 1. This way, reflecting function for the circular holler type crack will be as follows , then, considering (22) it follows that…”

“…and subsequently, From equation (22) we arrive to the final function of conforming reflection of the circular whole type crack surface into the singular radius circle ( ) ( )…”

Spring-back effect during multi-pass bending of sheet blanks

“…Steel sheet products and products from it are the most common product of metallurgical and machine-building enterprises [1][2][3], also, very stringent requirements are imposed of the geometric accuracy of these products [4][5][6][7]. Steel reinforcing cold-formed shapes are common products manufactured by enterprises specializing in the metal forming processes.…”

“…It is also known that the sheet blank is prone to springing at bending on multi-roll rollforming mills [8,15]. The spring-back angle can be determined based on experimental analysis of the measuring experiments [1][2][3][4][5][6][7].…”

Enhancing the Stability of Diesel Vehicle Environmental Performance by Improving Catalytic Converter's Construction

“…Для покращення екологічних показників автомобільного транспорту активно ведуться роботи в різних напрямках. Значне покращення екологічних показників автомобіля дає застосування альтернативних видів палива, зокрема, використання біопалив [4] та їх сумішей із дизельним паливом [5,6].…”