RU16385U1 - INTERNAL COMBUSTION DIESEL ENGINE - Google Patents

Abstract

DIESEL INTERNAL COMBUSTION ENGINE

The utility model relates to the field of engine building, namely, to the production of automotive internal combustion engines (ICE).

The problem solved by the claimed utility model, installation, installation, ensuring reliable operation in conditions of high forces and ease of maintenance during operation of a modern, economical engine in the engine compartment of BelAZ mining dump trucks with a lifting capacity of 32 tons and 36 tons, ensuring all the functionality of this equipment .

The utility model provides: a modified design of the front end of the cylinder block, front cover, crankshaft, gear drive of the fan and the water pump, the friction clutch of the drive of the fan - the required reliability and service life of the drive of the fan and water pump and the reduction of the complexity of maintenance, the presence of a drain valve and a minimum sensor the oil level in the oil sump, installing a centrifugal oil filter in the front of the left row of the cylinder block, manual fuel its pump on the back of the left intake manifold, the oil filler pipe in front of the left intake manifold, the oil dipstick in the front of the engine in front of the head of the first cylinder, the generator in the front of the engine in front of the oil filter, the drain valve on the fuel filter - ease of operation and maintenance of the engine, installing the front cuffs of the crankshaft into the front cover through an additional housing - improving the maintainability of the engine, the presence of a heat exchanger for preheating oil in the oil sump - the convenience of operating the engine in winter, the groove on the rear end of the shaft of the fuel injection advance clutch to provide a mechanical drive for the tachometer sensor; the ability to operate the inventive engine with a hydromechanical transmission with an automatic gear shift system, an oil pump with an increased length of the main gears - engine reliability high forces, fan impeller with increased outer diameter and width of the blades, the presence of additional flanges on the core water tanks for connecting transmission oil cooling radiators - the reliability of the engine cooling system and the hydraulic system of the truck, the modified design of the intake manifold pipe, the possibility of air movement, both along a small circuit using only a water-to-air charge air cooler, and along a large circuit using a water-to-air charge air cooler and a cooler

USEFUL MODEL ABSTRACT

air-to-air charge air with two turbocompressors installed on the flanges of the rear exhaust manifolds, charge air cooler with two inlet and two outlet openings, the design of exhaust manifolds with the separation of exhaust gas flows from the engine cylinders in accordance with the order of operation of the cylinders - required indicators reliability and resource, as well as the required power, economic and environmental performance of the engine, installing the flywheel inside the flywheel housing - convenience installation of the leading coupling half, breathers on the cylinder head covers - improving the operation of the crankcase ventilation system.

Description

DIESEL INTERNAL COMBUSTION ENGINE

The utility model relates to the field of engine building, namely to the production of automotive diesel internal combustion engines (ICE). The inventive diesel engine two is designed for installation on BelAZ mining dump trucks with a carrying capacity of 32 tons and 36 tons.

The engine compartment of these vehicles is designed for the inventive diesel engine. Also known is the diesel engine YaMZ8424.10-03, manufactured by the Tutaevsky Motor Plant, the operational characteristics of which meet the modern requirements of the economy of an engine of this purpose (minimum specific fuel consumption-149 g / s.s.ch., relative oil consumption for burning - 0.3 % of fuel consumption). 1 ; 2. This engine is closest in combination of essential features with the claimed utility model and is selected as a prototype.

The YaMZ-8424.10-03 engine has a cylinder block on which all components, parts and systems of the engine are hung and mounted. A crankshaft is installed in the bore of the cylinder block, on the front toe of which the drive pulley of the units and the gear wheel of the oil pump drive are installed. On the cylinder block are attached cylinder heads with intake and exhaust manifolds and caps. At the front end of the cylinder block, a front cover with a front cuff of the crankshaft is installed. The engine is equipped with a lubrication system containing an oil filler pipe located in front of the head of the first cylinder, an oil dipstick whose outer end is outside the outer dimensions of the front of the engine, an oil sump, an oil pump, a centrifugal oil filter installed on the fan drive fluid coupling housing, oil channels, connecting nodes and units of the system, a fuel supply system having a fuel injection advance clutch, a high pressure fuel pump with a manual fuel pump installed on it pump and fuel filter, a cooling system containing a water pump with an impeller installed on the rear end of the roller, a fan drive fluid coupling, a water pump and fan belt drive with tensioning devices, a fan impeller, one water box for installing thermostats mounted on a hydraulic coupling body and pipelines connecting the nodes and aggregates of the system, the intake manifold pipe with one inlet on the rear wall of the pipe, charge air cooler with one inlet and one an outlet sleeve connecting pipe inlet headers and charge air cooler, crankcase ventilation breather with one located in front of the camber cylinder, turbocharging system with a turbocharger mounted on the exhaust pipe

g o g -4 - I- o -9 J H -

MZIK 7 F 02 at 75/22

collectors in the upper rear part of the engine and connected to the charge air cooler with a sleeve, and exhaust manifolds made with the common cylindrical part raised upward relative to the outlet of the cylinder head, a generator with a phase output to the tachometer sensor and a belt drive from the hydraulic coupling pulley.

The disadvantage of this engine is the impossibility of its installation in the engine compartment of BelAZ mining dump trucks with a carrying capacity of 32 tons and 36 tons without changing its design, the insufficient reliability of certain components and assemblies in conditions of high forces, as well as the inconvenient location of individual components for maintenance during operation of this technicians.

The problem solved by the claimed utility model, installation, installation, ensuring reliable operation in conditions of high forces and ease of maintenance during operation of a modern, economical engine in the engine compartment of BelAZ mining dump trucks with a lifting capacity of 32 tons and 36 tons, ensuring all the functionality of this equipment .

The essence of the claimed model is that: the cylinder block is made with modified oil channels at the front end for supplying and draining oil from a centrifugal oil filter, with an extra bore and mounting holes for mounting the axis of the intermediate gear of the fan drive and the water pump, raised to the collapse of the cylinder block with the upper sealing surface and mounting threaded holes, with an additional oil channel for supplying oil to the axis of the intermediate gear, removed from the seal mounting surface for mounting a centrifugal filter in order to increase the reliability of the fan drive and the water pump;

the front cover of the cylinder block is made with the upper sealing surface raised to the collapse of the engine and mounting holes and has additional bores for installing the fan drive clutch and the water pump, as well as a flange and a bore for installing the front crankshaft casing to increase the reliability of the fan drive and water pump ;

the front cuff of the crankshaft is installed in the front cover of the cylinder block through an additional housing in order to improve the maintainability of the engine;

the engine crankshaft has an additional gear of the fan drive and the water pump on the front toe in order to increase the reliability of the fan drive and the water pump;

an oil filler pipe is located in front of the left intake manifold for the purpose of ease of maintenance of the lubrication system; an oil dipstick is located in front of the engine in front of the head of the first cylinder for the purpose of ease of maintenance of the lubrication system;

the oil sump contains a drain valve (in the prototype a drain plug, which is inconvenient to use) that provides ease of maintenance when changing the oil, a minimum oil level sensor that provides ease of engine operation, and a heat exchanger for preheating oil with hot water from the heater, which makes it easy to use the engine in winter time;

gear oil pump is made with an increased length of the main gears to ensure the reliability of the engine at high boosts;

a centrifugal oil filter is installed in front of the left row of the cylinder block, for ease of maintenance;

the fuel injection advance clutch is made with a groove on the rear end of the shaft to provide a mechanical drive for the tachometer sensor with the aim of

providing the possibility of operating an engine with hydromechanical transmission (GMF) with an automatic gear shift system;

a manual fuel priming pump is installed at the rear on the left intake manifold and is connected to the high-pressure pump by a pipe for the purpose of convenient maintenance of the engine fuel system;

the fuel filter is equipped with a drain valve in order to facilitate maintenance of the engine fuel system; the water pump is driven by gears; the water pump is made with an impeller on the front toe of the roller and the gear of the drive on the rear toe of the roller in order to ensure the reliability of the drive of the water pump and the engine cooling system as a whole;

the fan drive is carried out using gears using a friction clutch to ensure the reliability of the fan drive;

the impeller of the fan is made with an increased outer diameter and width of the blades in order to ensure the required air flow to increase the reliability of the engine cooling system and the hydraulic system of the car;

two water boxes are located in the front upper part of the engine on the front water pipes; in two (with a view of the transmission oil to ensure the reliability of the hydraulic system of the truck; the intake manifold pipe is made with an additional inlet on the front wall of the pipe for the convenience of mounting the engine air supply system, the air-to-air charge cooler is made with two inlet and two outlet openings; the connection of the inlet manifold pipe and the charge air cooler of the “water-air” type is made using three air dampers, special of flax nozzles and connecting pipes and provides air movement only along a small circuit directly from a charge-air cooler of the water-air type through one of the air dampers to the intake manifold pipe or only along a large circuit through two other air dampers and a charge air cooler of the air-air type mounted on the vehicle frame, in order to provide the required reliability and resource indicators; the crankcase ventilation system has two breathers mounted on the head covers cylinder wok to improve crankcase ventilation; the turbocharger system has two turbochargers mounted directly on the flange and right rear exhaust manifolds in order to ensure the required fraudulent and economic performance of the engine; compressor outlets are connected to the charge air cooler with the help of special nozzles and sleeves for the convenience of mounting the turbocharging system; exhaust manifolds are made with the separation of exhaust gas flows from the engine cylinders in accordance with the operating order of the engine cylinders in order to ensure the required power and economic performance of the engine; generator belt drive is carried out directly from the crankshaft pulley; the generator is installed in front of the engine in front of the oil filter in order to facilitate access to the generator and belt drive during maintenance. In FIG. 1 shows a front view of an engine; in FIG. 2 azan engine side view (left); in FIG. 3 shows a top view of the hammer; in FIG. 4 shows a side view of the engine); in FIG. 5 shows a diagram of a gear front water fan and a water pump; in FIG. 6 shows the ma of the oil pump drive; FIG. 7 shows a longitudinal section of a water pump; FIG. 8 shows a diagram of the installation of a mechanically driven tachometer chuck; FIG. 9 is shown on the front end of the cylinder block; FIG. 10 shows a view of the front cover.

Diesel two contains a cylinder block 1, in the bore of which a crankshaft is installed 2. On the front toe of the crankshaft, a generator drive pulley 3 and an oil pump drive gear 4 are installed. The cylinder block 1 is made with modified oil valves 5, b, 7, for feeding and draining oil from a centrifugal filter, a bore 8 and mounting holes 9 for installing the axis of the intermediate gear 10, with the upper sealing surface 11 raised to the collapse of the cylinder block and mounting screw holes 12, with an additional oil channel 13 for supplying oil to the axis of the intermediate gear and fixing holes 14 extended beyond the sealing surface for installing the centrifugal filter 15. The front cover of the cylinder block 16 is filled with the upper sealing surface 17 raised to the collapse of the cylinder block and the mounting holes 18 and has additional bores 19 and 20 for installing the fan drive clutch 21 and the water pump 22, as well as a flange 23 and a bore 24 for installing the housing 25 of the front cuff 26 of the crankshaft 2 . On the front toe of the crankshaft 2 has an additional gear 27 of the fan drive and the water pump. The outer end of the flywheel 28 is located inside the flywheel housing. Oil filler pipe 29 is located in front of the left intake manifold. An oil dipstick 30 is mounted in front of the engine in front of the head of the first cylinder.

An oil sump 31 is installed on the cylinder block 1, which has a drain valve 32, a minimum oil level sensor 33, and a heat exchanger 34 for preheating the oil. The gear oil pump 35 is made with an increased length of the main gears 36. A centrifugal oil filter 15 is installed in front of the left row of the cylinder block 1. The fuel injection advance clutch 37 has a groove 38 at the rear end of the shaft 39. A manual fuel pump 40 is mounted on the left intake manifold 41 at the rear and connected to the high pressure fuel pump. The fuel filter 42 is equipped with a drain valve 43. The water pump 22 has an impeller 45 on the front toe of the roller 44, and an actuator gear 46 on the rear toe. The fan is driven from gear 27, through the intermediate gear 10 and gear 47 of the friction clutch 21. Fan impeller 48 has an increased outer diameter and blades 49 with an increased width. The right and left water boxes 50 and 51 are made with additional flanges 52 and 53 for connecting transmission oil cooling radiators. The pipe of the intake manifolds 54 has an inlet 55 on the rear wall of the pipe and an additional inlet 56 on the front wall. The water-to-air charge air cooler 57 has two inlet openings 58 and 59, as well as two outlet openings 60 and 61. The connection of the intake manifold pipe 54 and cooler 57 is carried out at negative ambient temperatures through the pipe 62, connecting pipe 63 and an open emergency aerial

damper 64 when the air damper 65 is closed, and at positive ambient temperatures through the nozzle 62, open air damper 65 when the emergency air damper 64 is closed, connecting pipe 66, and flange 67, charge air cooler type “air-air (not shown in Fig. not shown ) and a second emergency air damper 68. The breathers 69 of the crankcase ventilation system are located on the covers 70 of the cylinder heads at the rear of each row of engine cylinders. Turbochargers 71 and 72 of the turbocharging system are located on the flanges of the rear exhaust manifolds 73 and 74, the front exhaust manifolds 75 and 76 and the rear exhaust manifolds 73 and 74 are configured to separate the exhaust gas flows from the engine cylinders in accordance with the order of operation of the cylinders. Turbochargers 71 and 72 are connected to a charge air cooler 57 of the “water-air” type with special nozzles 77 and 78. Generator 79 has a belt drive BO from pulley 3 and is installed in front of the oil filter in front of the engine.

When installing the engine in the engine compartment of the dump truck, design changes for the cylinder block 1, front cover 16, crankshaft 2 and the gear drive of the fan 48 and the water pump 22, consisting of gears 27, 10, 46, 47, provide the required reliability of the fan drive and the water pump , reducing the complexity of maintenance. The oil sump 31 is located deep in the frame of the truck, so the drain valve 32 and the minimum oil level sensor 33 provide ease of maintenance and operation of the lubrication system, and the heat exchanger 34 for preheating the oil provides oil heating and facilitates engine starting at low temperatures.

By increasing the length of the main gears 36, the oil pump 35 delivers an increased amount of oil to the engine lubrication system, which improves the reliability and life of the engine at high boosts. A centrifugal oil filter 15, mounted in front of the left side of the cylinder block, provides easy maintenance. The presence of a groove 38 at the rear end of the shaft 39 of the fuel injection advance clutch 37 makes it possible to provide a mechanical drive for the tachometer sensor, which makes it possible to install a hydromechanical transmission (GMF) on the dump truck with automatic gear shifting. A manual fuel priming pump 40, mounted on the rear left intake manifold 41, facilitates maintenance and operation of the engine fuel system. The fan impeller 48 with an increased outer diameter and width of the blades provides the required amount of air to the radiators of the cooling system. To additional flanges 52 and 53 of water boxes 50 and 51, pipes for supplying coolant to transmission oil cooling radiators are attached. To the flange of the emergency air damper

68, an air exhaust pipe from the air-to-air charge air cooler is attached to the intake manifold pipe 54. An air supply pipe is attached to the flange 67 to the air-to-air charge air cooler. The inventive design of the connection of the pipe 54 of the intake manifolds and charge air cooler 57 allows air to move at low ambient temperatures along the small circuit through the pipe 62, pipe 63 and the open emergency air damper 64 with the air damper 65 closed, and at large ambient temperatures the circuit through the pipe 62, the open air damper 65 with the emergency shutter 64 closed, the pipe 66, the flange 67 and the air-air charge air cooler open and the second emergency air damper 68. The presence of two emergency air damper 64 and 68 with manual and electromagnetic drive provides quick engine stop in emergency situations when the engine is running using a small as well as a large loop of air flowing into the engine cylinders. Structural changes in the engine's air supply system, exhaust system, turbocharging system provide the required economic characteristics of the engine, the required reliability and resource indicators, as well as the performance of regulatory environmental indicators.

The installation of crankcase ventilation system 69 breathers on the covers of 70 cylinder heads improves the operation of the crankcase ventilation system. The belt drive 80 of the generator 79 directly from the crankshaft pulley reduces the complexity of maintenance.

Sources of information:

1. JSC “Tutaevsky Motor Plant

“Engines YaMZ-8421.10, YaMZ-8424.10, YaMZ-8424-10-01. Technical description and instruction manual. Tutaev, 1996

2. JSC "Tutaevsky Motor Plant

“YaMZ-8424.10-03 engines. Supplement to the operating instructions, Tutaev, 1996

Claims (2)

1. A V-shaped internal combustion diesel engine comprising a cylinder block, a front cylinder block cover with a front crankshaft collar, a crankshaft having an aggregate drive pulley and an oil pump drive gear on the front toe and a flywheel on the rear, system lubricants with oil sump, oil pump, oil filler pipe, oil dipstick, centrifugal oil filter and oil channels, fuel supply system with a manual fuel priming pump, forward timing clutch fuel and fuel filter, cooling system having a water pump, fan and water pump drive, fan drive clutch, fan impeller, water box, connection of the intake manifold pipe to a water-to-air charge air cooler, crankcase ventilation system, turbocharging system , the connection of the compressor with the charge air cooler, exhaust manifolds, alternator belt drive, generator, characterized in that the front end of the cylinder block is made with additional oil channels, with an extra bore and mounting holes for installing the axis of the intermediate gear, with the upper sealing surface raised to the collapse of the cylinder block and the mounting holes extended for the centrifugal filter extending beyond the sealing surface, the front cover of the cylinder block is made with the upper sealing raised to the collapse of the engine surface and mounting holes, with additional bores for installing the fan drive coupling, water pump and housing cuff, on the front toe of the crankshaft there is an additional gear of the fan drive and the water pump, a centrifugal oil filter is installed in the front of the left row of the cylinder block, the water pump has an impeller on the front toe of the roller and the gear on the back, the water pump is driven using gears, a water-to-air charge air cooler is made with two inlet and two outlet openings, the turbocharging system has two turbochargers installed on indirectly on the flanges of the left and right rear exhaust manifolds, exhaust manifold configured to split the flow of exhaust gases from the engine cylinders in accordance with the work order. 2. The diesel internal combustion engine according to claim 1, characterized in that the front cuff of the crankshaft is installed in the front cover through an additional housing, the outer end of the flywheel is located inside the crankcase of the engine flywheel, the oil filler pipe is located in front of the left intake manifold, the oil dipstick is located in front the engine in front of the head of the first cylinder, the oil sump contains a drain valve, a minimum oil level sensor, and a heat exchanger for preheating oil, gear oil the pump is made with an increased length of the main gears, the fuel injection lead-in clutch is made with a groove on the rear end of the shaft to provide a mechanical drive for the tachometer sensor, a manual fuel priming pump is installed at the rear on the left intake manifold and is connected to the injection pump, the fuel filter is equipped with a drain valve, the fan is driven with the help of gears and a friction-type drive coupling, the fan impeller is made with an increased outer diameter and width of the blades, two boxes are water-mounted They are worn in the front upper part of the engine on the front water pipes, the right and left water boxes are made with additional flanges for connecting transmission oil cooling radiators, the intake manifold pipe is made with an additional inlet on the front pipe wall, the connection of the intake manifold pipe and the charge air cooler type water - air "is made using three air dampers, special nozzles and connecting pipes and provides air movement only at small a circuit directly from a water-to-air charge air cooler through one of the air dampers to the intake manifold pipe or only through a large circuit through two other air dampers and an air-to-air charge air cooler mounted on the vehicle frame, ventilation system the crankcase has two breathers installed on the caps of the cylinder heads, the outlet openings of the compressors are connected to the charge air cooler with the help of special nozzles and sleeves, od generator carried directly by the crankshaft pulley, the generator is installed in front of the engine to the oil filter.