RU12436U1 - INTERNAL COMBUSTION DIESEL ENGINE - Google Patents

Abstract

Abstract of a utility model. 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 is installation, installation, ensuring reliable operation in conditions of high forces and ease of maintenance in the operation process of a modern, economical engine in the engine compartment of BelAZ mining dump trucks with a lifting capacity of 32t and 36t, ensuring all the functional capabilities 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 water pump, friction clutch of the drive of the fan - the required reliability and service life of the drive of the fan and water pump and reduce 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 w, its pump at the rear on the left intake manifold, two breathers on the horizontal surface of the cylinder head covers at the rear of each row of cylinders, the generator in the front of the engine under the right exhaust manifold - ease of operation and maintenance of the engine, installing the front crankshaft cuff in 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 - ease of operation of the engine in Mnee time, the presence of a groove on the rear end of the shaft of the fuel injection advance clutch to provide a mechanical drive for the tachometer sensor and the engine shutdown mechanism with an electromagnetic drive - the possibility of operating the inventive engine with a hydromechanical transmission with an automatic gear shift system, an oil pump with an increased length of the main gears - reliability engine with high boosts, a water pump with an increased impeller diameter, a fan impeller with an increased external diameter with the diameter and width of the blades, the presence of gaps in the pipelines of the cooling system for connecting the radiators for cooling transmission oil - the reliability of the engine cooling system and the hydraulic system of the truck.

a modified design of the intake manifold pipe, the possibility of air movement, both for a small circuit using only “water-to-air type charge air cooler, and along the circuit using“ water-air type charge air cooler and air-to-air charge air cooler two turbochargers mounted on the ends of the rear exhaust manifolds, a charge air cooler with two inlet and two outlet openings, the design of the exhaust manifolds with HAND reptiles exhaust flow from the engine cylinders in accordance with noryadkom work cylinders - wanted, reliability and service life, as well as the desired cardinality, economic and environmental performance of the engine.

Description

Diesel internal combustion engine.

The utility model relates to the field of engine construction, namely, to the production of automotive diesel internal combustion engines (DZS). The inventive diesel engine is designed for installation on BelAZ dump trucks with a lifting capacity of 32t and 36t.

The engine compartment of these vehicles is designed for the inventive diesel engine. The diesel engine YaMZ8424.10 produced by the Tutaevsky Engine Plant is also known, the operational characteristics of which meet the modern requirements of fuel efficiency of an engine of this purpose (specific fuel consumption of 153 g / hp.h, relative oil consumption for waste - 0.3% of the consumption fuel) 1. This engine is the most similar in aggregate of essential features with the claimed utility model and is selected as a prototype.

The YaMZ - 8424.10 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 sump, an oil pump, a centrifugal oil purification filter mounted on the fan drive fluid coupling housing, oil channels connecting the units and assemblies of the system, a fuel supply system having a fuel injection advance clutch, and a high pressure fuel pump with an installed on it a manual fuel priming pump and a motor shutdown mechanism with a mechanical drive, a cooling system containing a water pump with an impeller mounted on the rear end th, hydraulic coupling of the fan drive, the belt drive of the water pump and fan with tensioning devices, the fan impeller, cooling cavities in the cylinder block and pipelines connecting the units and assemblies of the system, the intake manifold pipe with one inlet on the rear wall of the pipe, the sleeve connecting the intake manifold pipe and charge air cooler, crankcase ventilation system with one breather,

located in the middle of the collapse of the cylinder block, a turbocharging system with one turbocharger installed on the exhaust manifold pipe at the upper rear of the engine, and one air-to-air charge air cooler with one inlet and one outlet, a generator with a phase output to the tachometer sensor .

The disadvantage of this engine is the impossibility of installing it in the motor compartment of BelAZ mining dump trucks with a carrying capacity of 32t and 36t without changing its design, the insufficient reliability of some components and assemblies in conditions of high forces, as well as the inconvenient location of individual components for maintenance during operation of the specified equipment.

The problem solved by the claimed utility model is 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 32t and 36t, ensuring all the functionality of the specified equipment.

The essence of the claimed utility model is that:

- the block of cylinders is made with modified oil channels at the front end for supplying and draining oil from a centrifugal oil purification filter, with additional boring and mounting holes for installing the axis of the intermediate gear of the fan drive and the water pump, with the upper sealing surface raised to the collapse of the cylinder block and fixing threaded holes, with an additional oil channel for supplying oil to the axis of the intermediate gear, with fixing holes for the device extending beyond the sealing surface anovki centrifugal filter to improve the reliability nrivoda fan and water pump;

-the crankshaft of the engine has on the front toe an additional gear of the fan drive and the water pump 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 and mounting holes raised up to the collapse of the engine and has additional bores for installing the fan drive clutch and water pump, as well as a flange and a bore for installing the front crankshaft housing for increasing the reliability of the fan drive and water a pump;

the oil sump contains a drain clan (in the nototype - drain

inconvenient to use stopper) for convenience

maintenance when changing oil, minimum sensor

oil level for easy engine operation, and

heat exchanger for preheating oil with hot water from

a heater providing ease of operation of the engine in

winter time;

gear oil pump is made with increased length

main gears to ensure engine reliability

at high boosts;

centrifugal oil filter installed in front

left row of cylinder block for technical convenience

service;

the fuel injection lead clutch is made with a groove in the rear

shaft end to provide mechanical drive tachometer sensor

in order to enable the operation of the engine with

hydromechanical transmission (GMF) with automatic

gear shifting;

manual fuel priming pump is installed on the rear left

the intake manifold and connected to the injection pump pipe

ease of maintenance of the engine fuel system;

engine shutdown mechanism is made with electromagnetic

drive and is installed in the front of the cylinder block with the aim of

enable operation of an engine with GMP system

automatic gear shift;

the water pump is made with an impeller of increased diameter on

front toe of the roller and gear of the drive on the rear toe of the roller with

the purpose of ensuring the reliability of the water pump drive and

engine cooling systems in general;

vesulator drive is carried out using gears with

the use of a friction clutch to ensure

reliability of the fan drive;

fan impeller performed with increased outer

the diameter and width of the blades in order to ensure the required

air flow to increase system reliability

cooling the engine and hydraulic system of the car;

cooling pipe connecting the water pump to

the right row of cylinders, as well as the pipeline connecting the pump to

water-oil radiator, have gaps, which include

transmission oil cooling radiators to provide

the inlet manifold and air-to-air charge cooler “water - air” is made with three air dampers and the air-to-air charge air cooler interconnected by special nozzles and connecting pipes, and provides air movement only along a small circuit or only along a large circuit through an air-to-air charge-air cooler, the front ends of the inlet and outlet pipes being brought out of the external dimensions of the front of the engine to ensure the required My indicators of reliability and resource;

-the crankcase ventilation system has two breathers installed on the horizontal surface of the cylinder head covers at the rear of each row of cylinders in order to facilitate the maintenance of the high-pressure fuel pump;

-the turbocharging system has two turbochargers installed directly on the flat plates of the left and right rear exhaust manifolds, a charge air cooler of the type “water-air with two inlet and two outlet openings, and a charge-air cooler of the type“ air - air mounted on the car frame, and exhaust the collectors are made with the separation of exhaust gas flows from the engine cylinders in accordance with the order of operation of the FIdroves in order to ensure the required reliability and resource indicators, as well the required moshiostnyh, economic and environmental indicators of the engine;

-the generator is installed in the front of the engine and the iodine with a custom exhaust manifold in order to facilitate access to the generator and belt drive during maintenance;

In FIG. 1 shows a front view of the engine, in FIG. 2 is a side view of the engine (left), in FIG. 3 is a top view of the engine, in FIG. 4 is a side view of the engine (right), in FIG. 5 is a diagram of a gear gear drive of a fan and a water pump; FIG. 6 is a diagram of an oil pump drive; FIG. 7 is a longitudinal section through a water pump; FIG. 8 is a schematic diagram of the installation of a tachometer sensor with a mechanical drive; FIG. 9 is a view of the front end of the cylinder block, FIG. 10 is 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 5,6,7, for supplying and discharging oil with a centrifugal, bore 8 and bore holes 9 for installing the axis of the intermediate gear wheel 10, with the upper sealing lip raised up to the collapse of the cylinder block 11 and the mounting threaded

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. An additional gear 16 of the fan drive and the water pump is installed on the front nose of the crankshaft 2. The front cover of the cylinder block 17 is made with the upper sealing surface 18 raised to the collapse of the cylinder block and the mounting holes 19; 20 and has additional bores 21 and 22 for installing the fan drive clutch 23 and the water pump 24, as well as a flange 25 and a bore 26 for installing the housing 27 of the front sleeve 28 of the crankshaft 2.

lia cylinder block 1 has an oil sump 29, which has a drain valve 30, a maximum oil level sensor 31 and a heat exchanger 32 for preheating the oil. Gear oil pump 33 is made with an increased length of the main gears 34. A centrifugal oil filter 15 is installed in front of the left row of the cylinder block 1. The fuel injection advance clutch 35 has nai 36 at the rear end of the shaft 3,7. Manual tonkopachayuschy Pasos 38 is installed on the left intake manifold 39 at the rear and connected to the TIVD 40 by a pipe 41. The engine stop mechanism with an electromagnetic drive 42 is installed in the front of the cylinder block 1. The water passos 24 has an impeller 44 with an increased diameter on the non-uniform toe of the roller 43, and a drive gear 45 on the rear nose. The fan drive is dry, even 11 from gear 16, through the intermediate gear 10 and gear 46 of the friction clutch 23. Fan impeller 47 has an increased outer diameter and blades 48 with increased width. In the gap of the pipe 49 of the cooling system connecting the water pump 24 to the right row of the cylinder block 1, between the flanges 50 and 51 one of the radiators for cooling the transmission oil of a dump truck (not shown) is included. And in the gap of the pipe 52 of the cooling system connecting the water pump 24 with the oil-water radiator 53, between the flanges 54 and 55 a second cooling oil cooler for the transmission oil of the dump truck (not shown) is included. The inlet manifold pipe 56 has an inlet 57 on the rear wall of the pipe and an additional inlet 58 on the front wall. Charge air cooler 59 of the type “water-air has two inlet openings 60 and 61, as well as two outlet openings 62 and 63. The connection of the inlet manifold pipe 56 and the cooler 59 is carried out at negative ambient temperatures through the outlet pipes 64 and 65, the connecting pipes 66 and 67, connecting pipe 68 and open emergency air damper 69 with closed air

the damper 70, and at positive ambient temperatures through the exhaust pipes 64 and 65, the connecting pipes 66 and 67, the connecting pipe 68, the air damper 70 with the emergency air damper 69 closed, the inlet pipe 71, the inlet pipe 72, type 73 charge air cooler “Air — air, exhaust pipe 74 and a second emergency air damper 75. Crankcase ventilation system breathers 76 are located on the horizontal surface 77 of the cylinder head covers 78 at the rear of each engine cylinder bank. Turbochargers 79 and 80 of the turbocharging system are located on the flanges of the rear upper manifolds 81 and 82. The front upper manifolds 83 and 84 and the rear exhaust manifolds 81 and 82 are made with the separation of exhaust gas flows from the engine cylinders in accordance with the order of operation of the cylinders. Turbochargers 79 and 80 are connected to a charge air cooler 59 of the “water-air” type with special nozzles 85 and 86. Generator 87 has a belt drive 88 from pulley 3 and is installed under the right exhaust manifold 83.

When the engine is installed in the engine compartment of the dump truck, design changes for the cylinder block 1, front cover 17, crankshaft 2 and gear drive of the fan 47 and the water pump 24, consisting of gears 16; ten; 46 and 45, provide the required reliability of the fan drive and the water pump, and reduce the complexity of maintenance. The oil sump 29 is located deep in the frame of the truck, so the drain valve 30 and the minimum oil level sensor 31 provide convenient maintenance and operation of the lubrication system, and the heat exchanger 32 for preheating the oil provides oil heating and facilitates the start of the truck at low temperatures

By increasing the length of the mating gears 34, the oil pump 33 provides the supply of 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 36 at the rear end of the shaft 37 of the fuel injection advance coupling 35 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 change. A manual fuel priming pump 38, mounted on the rear left intake manifold 39, facilitates maintenance and operation of the engine fuel system. The engine shutdown mechanism 42 with an electromagnetic drive allows you to set on

GMP dump truck with automatic gear shift. A water pump 24 with an increased diameter of the impeller 44 provides an increased amount of coolant to the cooling system, thereby ensuring the reliability of the cooling system and the engine as a whole. The impeller of the fan 47 with an increased outer diameter and the width of the blades ensures the guiding of the required amount of air to radiators and cooling systems. A pipe for supplying coolant to one of the transmission oil cooling radiators is attached to the output flange 50 of pipeline 49 connecting the water pump to the right row of the cylinder block, and a pipe for draining the coolant from the radiator is attached to the input flange 51 of pipeline 49, which charges the liquid to the cooling cavity of the right cylinder block row. A pipe for supplying coolant to the second transmission oil cooling radiator is attached to the output flange 54 of the pipe 52 of the cooling system connecting the water pump to the engine oil-water radiator 53, and a pipe for draining the coolant from the radiator to the engine oil cooler is attached to the inlet flange 55 of the pipe 52.

An exhaust pipe 74 is attached to the outlet flange of the charge air cooler 73 of the “air-to-air” type, which through the open emergency air damper 75 leads the air cooled along the large circuit to the intake manifold pipe 56. The lead pipe 72 is attached to the input flange of the charge air cooler of the “air-air” type which provides, through the inlet pipe 71, an open air damper 70 with the emergency shutter damper 69 closed, a connecting nozzle 68, connecting pipes 66 and 67, outlet pipes 64 and 65 intake of air from a charge air cooler of the type "water-air to a large circuit through a charge air cooler of the type" air-air at positive ambient temperatures. At low ambient temperatures, the claimed design of the air supply from the charge air cooler type "water - air to the intake manifold pipe allows air movement along a small circuit from the charge air cooler type" water - air through the exhaust pipes 64 and 65, connecting pipes 66 and 67 , connecting nipple 68, open emergency air damper 69 with closed air damper 70 directly to the inlet manifold pipe 56. Two emergency air 69 and 75 with manual and electromagnetic drive provides quick engine shutdown in emergency situations both when the engine is running using a small as well as a large air circuit.

entering the engine cylinders. Structural changes in the engine's air supply system, exhaust system, turbocharging system provide the required and economic characteristics of the engine, the required reliability and resource indicators, as well as the performance of regulatory environmental indicators.

The installation of breathers 76 of the crankcase ventilation system on the horizontal surface of 77 covers 78 of the cylinder head facilitates access to the high pressure fuel pump regulator during maintenance. The belt drive 88 of the generator 87 directly from the crankshaft pulley reduces the complexity of maintenance.

Sources of information:

1. OAO Tutaevsky Motor Plant

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

Claims (1)

A diesel engine with a U-shaped arrangement of cylinders, comprising a cylinder block with a crankshaft installed in its bore and having a front drive pulley and an oil pump drive gear, a front cylinder block cover with a front crankshaft collar, an oil lubrication system a crankcase, an oil filter, a centrifugal oil filter and oil channels, a cooling system having a water pump, a fan and a water pump drive, a fan drive clutch, an impeller fan fan, cooling cavities in the engine and pipelines, fuel supply system with a fuel injection advance clutch, a high pressure fuel pump with a manual fuel priming pump and a mechanically driven engine shutdown mechanism, intake manifold pipe, connection of the intake manifold pipe and charge air cooler water-to-air type, crankcase ventilation system, turbocharging system, exhaust manifolds, generator, characterized in that the front end of the cylinder block The ditch is made with additional and modified oil channels, with additional 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 with mounting holes extended for the installation of the centrifugal filter, an additional toe of the crankshaft is installed gear of the fan drive and the water pump, the front cover of the cylinder block is made with the upper plate raised up to the collapse of the engine the relative surface and mounting holes, with additional bores for installing the fan drive clutch, water pump and front cuff housing, the front crankshaft cuff is installed in the front cover through an additional housing, the oil sump is equipped with a drain valve, a minimum oil level sensor and a heat exchanger for preheating oil , the gear oil pump is made with an increased length of the main gears, a centrifugal oil filter is installed in front of the left a row of the cylinder block, a groove is made at the rear end of the shaft of the fuel injection advance coupling, a manual fuel priming pump is installed at the rear of the left intake manifold and connected to the injection pump, the engine shutdown mechanism is electromagnetically driven and installed at the front of the cylinder block collapse, the water pump has the front toe of the roller is the impeller of an increased diameter and the gear of the drive is on the rear toe, the fan is driven by gears and a clutch of the drive of the friction type, the impeller is vent the radiator is made with an increased outer diameter and width of the blades, the pipelines of the cooling system connecting the water pump to the right-hand side of the cylinder block and the water pump with a water-oil radiator have gaps, which include transmission oil cooling radiators, the intake manifold pipe is made with an additional inlet on the front the wall of the pipe, the connection of the pipe of the intake manifolds and the air-to-air charge air cooler is made using three air dampers and cool I charge air of the air-to-air type, interconnected by special nozzles and connecting pipes, and provides air movement only along a small circuit or only along a large circuit through the air-to-air charge-air cooler, the front ends of the inlet and outlet pipes are led out for the external dimensions of the front of the engine, the crankcase ventilation system has two breathers installed on the horizontal surface of the cylinder head covers at the rear of each cylinder bank, a turbocharging system and it has two turbochargers installed directly on the flanges of the left and right rear exhaust manifolds, a water-to-air charge air cooler with two inlet and two outlet openings, and an air-to-air charge air cooler mounted on the vehicle’s frame, exhaust manifolds made with the separation of exhaust gas flows from the engine cylinders in accordance with the order of the cylinders, the generator is installed in front of the engine under the right exhaust manifold.