Table of Contents
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Table of Contents
Summary of Contents for Kioti 4A200T
- Page 1 CHAPTER 2 ENGINE...
- Page 3 ENGINE 1. GENERAL 1.1 APPEARANCE 632W201A The DAEDONG A series engines are vertical, water- cooled, 4-cycle, three or four cylinders diesel engines, they concentrate DAEDONG’s foremost technologies. With swirl combustion chamber, bosch K type fuel in- jection pump, well-balanced designs, they feature greater power, low fuel consumption, less vibration and noise, and low emission.
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Page 4: Specifications
ENGINE 1.2 SPECIFICATIONS MODEL 4A220 4A200T Type Vertical, water-cooled, Vertical, water-cooled, 4-cycle diesel engine 4-cycle diesel engine (Turbo) Number of cylinder Bore and stroke mm (in.) 87.0 x 92.4 (3.43 x 3.64) 83.0 x 92.4 (3.27 x 3.64) Total displacement 2.197 (134.1) -
Page 5: Performance Curve
ENGINE 1.3 PERFORMANCE CURVE 632W204A 632W203A... -
Page 6: General Warning
Sample/td Spec. mm (in.) φ 400 (15.75) 4A220 697.3 (27.45) 817.3 (32.18) 280 (11.02) 502.6 (19.79) 262.5 (10.33) φ 400 (15.75) 4A200T 697.3 (27.45) 817.3 (32.18) 280 (11.02) 519 (20.43) 282.4 (11.12) φ 321 (12.64) 4A220 736 (28.98) 260 (10.24) 240 (9.45) -
Page 7: Structure And Function
ENGINE 2. STRUCTURE AND FUNCTION 2.1 BODY A. CYLINDER HEAD The cylinder head is made of special alloy cast iron which can resist high temperature and pressure caused by combustion. The intake and exhaust ports are arranged cross-flow type to get high combustion efficiency by protecting the suction air from being heated and expanded by heated exhaust air. -
Page 8: Piston And Piston Rings
The top ring is plated with hard chrome to increase wear resistance (The ring of 4A200T engine is mode of a special steel). 632W210A (1) Top Ring... -
Page 9: Fuel Camshaft
ENGINE F. CAMSHAFT The camshaft (3) is made of forged steel and it’s jour- nals and cams are hardened to increase wear resistance. The cams on the camshaft open and close the intake and exhaust valves with the push rods and rocker arms. -
Page 10: Intake And Exhaust Valves
ENGINE I. INTAKE AND EXHAUST VALVES The valve and its guide of the intake are different from those for the exhaust. Other parts, such as the spring, spring retainers, valve spring collets, valve stem seals are the same for both the intake and the exhaust. All contact or sliding surfaces are hardened to increase wear resistance. -
Page 11: Lubricating System
ENGINE 2.2 LUBRICATING SYSTEM A. FLOW OF LUBRICATING OIL The lubricating oil is forced to each journal through the oil passages of the cylinder block, cylinder head and shafts. The oil, splashed by the crankshaft or thrown off from the bearings, lubricates other engine parts such as the push rods (11), tappets (12), piston pins and timing gears. -
Page 12: Oil Pressure Switch
ENGINE C. OIL FILTER AND RELIEF VALVE The lubricating oil force-fed by the pump is filtered by the filter cartridge, passing through the filter element from the outside to the inside. When the filter element accumulates dirt and the pressure difference between the inside and the outside rises more than 98 kPa (1.0 kgf/cm , 14 psi), the bypass valve (1) opens to... -
Page 13: Water Pump
ENGINE 2.3 COOLING SYSTEM A. FLOW OF COOLING WATER The cooling system consists of a radiator (5), a cen- trifugal water pump (7), a cooling fan (6) and a thermo- stat (2). The water is cooled as it flows through the radiator core, and the fan behind the radiator pulls the cooling air through the radiator core. -
Page 14: Radiator Cap
ENGINE C. THERMOSTAT The thermostat is wax pellet type, which controls the flow of the cooling water to the radiator to keep the proper temperature. The case has a seat (1) and the pellet has a valve (2). The spindle attached to the case is inserted into the synthetic rubber in the pellet. -
Page 15: Fuel Filter
ENGINE 2.4 FUEL SYSTEM A. FLOW OF FUEL The fuel is fed from the fuel tank (1) through the fuel feed pump (7) to the injection pump (3) thru the fuel filter (2). The injection pump force-feds the fuel through the injection nozzles (5), which inject the fuel into the cylinders for combustion. -
Page 16: Fuel Feed Pump
ENGINE C. FUEL FEED PUMP The diaphragm (6) is linked to the tappet (3) with a push rod (2). The tappet is reciprocated by the eccen- tric cam on the fuel camshaft (7). (A) Inlet stroke When the diaphragm is pulled down by the spring, vacuum in the chamber (5) causes the outlet valve (4) to close and the atmospheric pressure in the fuel tank forces the fuel into the chamber, opening the inlet valve... - Page 17 ENGINE a . Pump Element The pump element (1) consists of a plunger (3) and cylinder (2), their sliding surfaces are precision ma- chined to maintain fuel tightness. The plunger (3) fits in the control sleeve (5) at the driving surface (7). The sleeve is engaged with the control rack, which rotate the plunger in the cylinder to control the amount of fuel delivery.
- Page 18 ENGINE c. Amount of Fuel Delivery (A) No fuel delivery At the engine stop position of the control rack (3), the lengthwise slot (1) on the plunger (2) aligns with the feed hole (5). The delivery chamber (4) is led to the feed hole during the entire stroke of the plunger.
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Page 19: Fuel Injection Nozzle
ENGINE E. FUEL INJECTION NOZZLE The nozzle is a throttle-type. It features low fuel con- sumption and works well with DAEDONG combustion chamber. The nozzle valve opening pressure is about 13.7 to 14.7 MPa (140 to 150 kgf/cm , 1,991 to 2,134 psi), the pressure overcomes the counterforce of nozzle valve spring, and push the valve up instantly, the fuel is then injected in a proper quantity into the swirling air in... - Page 20 ENGINE b. Operation of Governor a) At start The steel balls (13) have no centrifugal force. As the fork lever 1 (4) is pulled by the start spring (1), the control rack (14) moves to the maximum injection posi- tion. At start, the sufficient injection of the fuel enables easy starting.
- Page 21 ENGINE c) At High Speed Running with a Load When a load is applied to an engine running at high speed, the engine speed drops and the centrifugal force of steel ball (13) becomes less, the fork lever 2 (5) is pulled forward by the governor spring 1 (2) and 2 (3), this increases the amount of fuel injected.