Pump SMD 14-13С2-1A Pump 14 SMD

The main applicability of engines SMD-14 and SMD-18 – tractors for forestry purposes TDT-55A and the tractors DT-75. Modification for trelevochnaja TDT-55A is the engine of SMD-18H.01. Engine SMD-18 equipped with a starting engine PD-10UD and the turbine ТКР8,5-H1. Rated power of SMD-18 is 58.8 kW (80 HP). Specific fuel consumption at rated power – 218 g/kW.h. (160 g/HP-HR).

Water pump engine SMD-14, like other engines, is a common node with a fan. The pump housing (in the figure POS. 25) with cover (POS. 13) mounted on the front of the block of cylinders bolts. Between the butt surfaces of the cover and the housing are installed the gasket (POS. 23). In the case that the pump 14 is 13С2-1A is the cushion (POS. 7) mounted on bearings (POS. 8) ball-type. To the hub (POS. 4) fixed on the shaft by key and nut bolted pulley with fan blades (POS. 3, 1), the receiving rotation from the engine crankshaft through V-belt (POS. 2). At the rear end of the shaft is fixed impeller (POS. 16), placed in a water cavity of the cap. The rotation of the impeller creates centrifugal forces which throw the water into the cavity of the discharge. This cavity has a helical extension in the direction of rotation of the impeller that provides a reduction in water velocity, but increasing its pressure. At the exit of water from mezhlopastnogo space of the impeller at its center creates a vacuum, through which water comes in here a continuous flow from the suction chamber. In the lid (top portion) with an opening for removal of air from the pump when filling with water system. In the bottom of the cover is a hole to drain the water. To prevent water leakage from the pump cavity, there is a special seal. Washer (POS. 21), made of PCB, includes protrusions in the grooves of the impeller, rotating together with it. Spring (POS. 17) tightly presses the washer to the end of the sleeve (POS. 24). Cuff (POS. 20) blocks the access of water into the space between the washer and roller. Bearing lubrication is performed with grease. To prevent leakage of lubricant in the housing of the pump is installed oil seals.