RU13969U1 - INTERNAL COMBUSTION DIESEL ENGINE - Google Patents

Abstract

Utility Model Abstract

Diesel internal combustion engine,

The utility model relates to the field of engine building, namely, to the production of tractor diesel internal combustion engines (ICE). The problem solved by the claimed model is installation, installation and ease of maintenance during the operation of a modern engine in the engine compartment of an existing tractor with all the functional capabilities of the tractor.

The utility model provides: a modified design of the flywheel and power take-off mechanism, the installation of the transmission shutdown mechanism, the presence of mounting holes on the rear end of the housing and the transmission shutdown shaft for installing the additional flywheel and flywheel housing - the convenience of engine mounting and the reliability of the tractor transmission, the installation of the centering pin - bushings at the junction of the front support bracket and front cover, the front support beam, rigidly mounted on the crown ring, is efficient whether there is a fan belt drive, a modified design of the exhaust manifolds, installation of a frame with an air filter and a silencer pipe, connection of the fooltpipe pipe to the turbine outlet, connection of the air filter to the compressor inlet, a modified design of the adjustment rod for the regulator, a fan impeller mounted on the radiator - convenience mounting the engine in the engine compartment, oil sump with drain valve, oil filler pipe and oil dipstick located above the right exhaust with a manifold, a manual injection pump installed on the rear of the left intake manifold, a belt drive of the fan and generator directly from the drive pulley of the aggregates, sunas installed on the rear of the cylinder head covers - easy maintenance of engine systems, a fan impeller with an increased outer diameter and a burst width , the presence of gaps in the pipelines of the cooling system for connecting the radiator for cooling the gear oil, the reliability of the cooling system and hydraulic system of the tractor, a fan impeller with a variable airtight note - the driver’s convenience in summer and winter, the installation of an air damper with manual and electromagnetic drive - improving the tractor’s ease of use and engine protection in emergency situations, installing a turbocharger in the upper, rear of the engine, exhaust manifold pipe to the flywheel housing through the delivery, by connecting the exhaust manifold pipe to the rear exhaust manifolds using an additional nnny connecting pipes - increase in tonny profitability of the engine.

Description

Diesel internal combustion engine.

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

Known diesel ICE SA6D-155-4A, which is installed on D355A bulldozers and pipe layers D355C manufactured by Komatsu (Yanonia) 1, 2.

The engine compartment of these tractors is designed and manufactured for the SA6D-155-4A engine, however, the operational characteristics of this engine (specific fuel consumption minimum - 175 g / h.p., nominal - 190 g / h.p.), as well as the high cost of engines and spare parts supplied to spare parts, do not allow the efficient use of tractors in Russia.

Also known is the YaMZ - 8424.10 liquid-cooled diesel engine, manufactured by the Tutaevsky Motor Plant, whose operational characteristics meet the modern requirements of the economy of an internal combustion engine of this purpose (specific fuel consumption of at least 149 g / h.p., nominal - 162 g / h.p. hours), and the prices are acceptable in Russia 3. This engine is the closest in combination of essential features with the claimed utility model and is selected as a prototype.

The YaMZ 8424.10 engine has a V-shaped cylinder block on which all units, assemblies, 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 is fixed, and on the back - a flywheel with a mechanism for selecting mopschenii mounted in it in the form of a dry double-disc friction clutch. The front support bracket is located in front of the engine, which is attached to the cylinder block by bolts passing through the front cover, and the flywheel housing is attached to the rear end of the cylinder block. On the cylinder block, cylinder heads with intake and exhaust manifolds and caps are installed. The exhaust manifolds are made with a common cylindrical part raised upward relative to the outlet of the cylinder head. The engine is equipped with a lubrication system comprising an oil sump with a drain plug, an oil dipstick, the outer end of which is outside the external dimensions of the front of the engine, a fuel supply system containing a high pressure fuel pump with an installed

IPC 6 F02B 75/22

on it there is a manual fuel priming pump and a control regulator drive with a rigid draft, a cooling system; it has a water pump, a fan impeller with a belt drive and an air flow direction from the radiator to the engine mounted on the driven shaft of the fan drive hydraulic clutch mounted directly on the cylinder block cooling strips in the cylinder block and pipelines connecting the nodes and aggregates of the system with a crankcase ventilation system with one breather located in front of the camber of the cylinder block s, nozzle inlet headers and charge air cooler interconnected sleeve. The turbocharger is mounted at the rear in the upper part of the engine to the exhaust manifold pipe, which is attached directly to the flywheel housing, and the connection of the exhaust manifold pipe to the rear exhaust manifolds is carried out through the supply pipes and bellows. The generator is driven by two belts from the hydraulic coupling pulley, which is driven into rotation by three other belts from the crankshaft pulley through a tensioner.

The disadvantage of this engine is the impossibility of installing it and the engine compartment of the already existing Komatsu tractor (in this case, a bulldozer and pipe-laying machine based on the tractor) without changing its design, as well as the inconvenient location of some units for maintenance during operation of the tractor.

The problem solved by the claimed utility model is the installation, installation and ease of maintenance during operation of a modern, economical, affordable engine in Russia in the engine compartment of an existing tractor with all its functional capabilities.

The essence of the claimed utility model is that:

- the engine flywheel is made flat, without a protrusion along the outer diameter, in order to increase the reliability of the power take-off mechanism and the tractor's transmission as a whole;

- the power take-off mechanism is made in the form of a leading coupling half mounted on the flywheel with the help of shock absorbers, and a ring gear in order to ensure the operability of the power take-off mechanism in oil fog;

-the front support bracket is attached to the cylinder block by bolts passing through the front cover, and at the junction of the bracket with the front cover two centering pins - bushings are installed, for the convenience of mounting the engine in the tractor engine compartment;

-exhaust manifolds are made with the common cylindrical part lowered downward relative to the outlet of the cylinder head in order to provide the necessary mounting gap between the exhaust manifolds and the walls of the tractor engine compartment;

- the oil sump contains a drain valve (in the prototype a drain plug, which is inconvenient to use), providing ease of maintenance when changing oil;

- the oil filler pipe and dipstick are located above the right exhaust manifold for the purpose of ease of maintenance;

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

- the regulator control drive rod is made of two parts with a spring installed between them and a cable connecting the movable part to the fuel cut-off bracket for the convenience of mounting and operating the engine;

- the fan wheel (not shown in the figure) is made with an increased outer diameter and width of the blades, as well as with a variable air flow direction due to the rotation of the blades in order to ensure the reliability of the tractor cooling system and the convenience of the driver in summer and winter;

- the fan wheel and the fan drive shaft (not shown in the figure) are installed directly on the radiator of the tractor cooling system, and the belt drive is carried out directly from the crankshaft pulley through a tensioner for the convenience of engine installation and maintenance;

- pipes of the cooling system connecting the water pump with the right row of cylinders and the water pump with a water-oil radiator have gaps in which the radiator for cooling the transmission oil is included to ensure the reliability of the tractor hydraulic system;

-two breather crankcase ventilation systems are installed on the inclined surface of the cylinder head cover at the rear of each row of cylinders for the purpose of ease of maintenance of injection pump;

- The connection of the intake manifold pipe and charge air cooler is carried out by an air damper with a manual and electromagnetic drive for the purpose of convenience

tractor operation and engine protection in emergency situations;

- the turbocharger is installed at the rear in the upper part of the engine to the exhaust manifold pipe, which is attached to the flywheel housing through spacers in order to ensure low specific fuel consumption;

- The connection of the exhaust manifold pipe with the rear exhaust manifolds is carried out using bellows, supply pipes, as well as additional connecting pipes in order to ensure low specific fuel consumption;

- a temporary drive of the generator installed in the front upper part of the engine close to the vertical axis of the engine, is carried out directly from the crankshaft pulley without a tension device, since the belt is tensioned by the generator, for the purpose of ease of maintenance;

-On the collapse of the cylinder block, a frame is mounted on which an air filter and an exhaust silencer pipe are mounted (the prototype does not have a frame, an air filter and a silencer pipe), which simplifies the installation of the engine in the engine compartment;

-the muffler pipe is connected using a special pipe and connecting pipe to the turbine outlet (the prototype does not have one), for the convenience of mounting the engine in the engine compartment;

- the air filter is connected using two special nozzles to the compressor inlet, with the upper nozzle mounted on the frame (the prototype is missing), for the convenience of mounting the engine in the engine compartment;

on the bracket of the front engine mount the beam of the front suspension is rigidly mounted (the prototype does not have it) for ease of installation and to ensure the operability of the belt drive of the fan mounted on the tractor radiator;

- on the flywheel’s housing, a transmission shutdown mechanism is installed (the prototype does not have one), which provides torque transmission from the leading coupling half and the ring gear through the driven coupling half, by moving the tractor transmission from the engine, to the transmission shutdown shaft, then to the additional flywheel and then to tractor torque converter, for ease of installation and engine start at low temperatures;

mounting and docking with an existing tractor transmission;

- on the rear end of the shaft of the transmission shutdown mechanism, mounting holes are made for installing an additional flywheel from the engine 8А6Д - 155 - 4А.

Figure 1 shows a side view (left) of the inventive engine; figure 2 - transmission shutdown mechanism; in Fig.3 is a front view of the engine; figure 4 is a diagram of the mounting bracket of the front support; in Fig.5 - control circuit of the regulator and the fuel shut-off mechanism, Fig. 6 is a side view of the engine (right); Fig.7 is a view of the rear end of the housing of the transmission shutdown mechanism.

Diesel two contains a cylinder block 1, in the bore of which a crankshaft 2 is installed. An aggregate drive pulley 3 is installed on the front toe of the crankshaft and a flywheel 4. On the cylinder block 1, the flywheel housing is installed. The flywheel 4 is made flat without protrusion on outer diameter. The power take-off mechanism is made in the form of a leading coupling half 6 mounted on the flywheel 4 with the help of shock absorbers 7 and a ring gear 8. The front support bracket 9 is attached to the cylinder block 1 by bolts 10 passing through the front cover 11, so that at the junction of the bracket 9 and the front cover 1 mounted pin - sleeve 12. Exhaust manifold 13; fourteen; fifteen; 16 are made with the common cylindrical part 20 lowered downward relative to the outlet 17 of the cylinder head 18. The oil sump 21 has a drain valve 22. An oil filler pipe 23 and an oil 24 are located above the front right exhaust manifold 13. A manual fuel pump 25 is located at the rear of the left exhaust manifold 26 and connected to the injection pump 27 by a pipe 28. The control drive rod of the injection pump controller is made of a movable part 29 and a fixed 30 with a spring 31 installed between them. A cable 32 connects the movable part 29 of the rods with bracket 33 off the fuel supply. The fan impeller belt drive is carried out directly from the crankshaft pulley 3 through the tensioner 34. In the gap of the cooling system pipe 35 connecting the water pump 36 with the cooling cavity of the right row of the cylinder block 1, a transmission oil cooling radiator (not shown) is connected between the flanges 37 and 38 . In the gap of the pipeline 39 connecting the water pump 36 with the oil-water radiator 40, a radiator is included between the flanges 41 and 42

transmission oil cooling. Crankcase ventilation system vents 43 are located on an inclined surface 44 of the covers 45 of the cylinder heads 18. The intake manifold pipe 46 is connected to the charge air cooler 47 via an air damper 48. The turbocharger 49 is mounted on the exhaust manifold pipe 50 attached to the flywheel housing 5 through spacers 51. The pipe exhaust manifolds 50 are connected to the rear exhaust manifolds 14 and 16 by means of bellows 52, supply pipes 53 and 54, as well as using additional connecting pipes 55 and 56. Generator 57 is connected by a belt drive 58 to the drive pulley of the units 3. Above the collapse of the cylinder block 1, closer to the rear end of the engine, a frame 59 is mounted on which the air filter 60 and the exhaust silencer pipe 61 are mounted. The muffler pipe 61 is connected to the turbine compressor 49 turbine outlet 48 by a special nozzle 63 and a connecting pipe 64. The air filter 60 is connected to the turbocharger compressor 49 inlet by two special nozzles 65 and 66, with the upper nozzle 65 mounted on the frame 59. Pa to the front support bracket 9, a beam 67 of the front suspension is rigidly mounted. On the flywheel housing 5, a housing 68 of the transmission shutdown mechanism is installed. Pa shaft 69, the shutdown mechanism installed in the housing 68, is a driven coupling half 70, which engages with the ring gear 8 and the movement of which is carried out by disconnecting the tractor transmission from the engine. At the rear end of the housing 68 of the shutdown mechanism, mounting holes 71 are made for installing an additional flywheel housing (not shown). At the rear end of the shaft 69, mounting holes 72 are made for installing an additional flywheel (not shown). When the engine is installed in the tractor engine compartment, the front support bracket 9, mounted using a hub pin 12, and the front suspension beam 67, rigidly connected to the bracket 9 and the tractor frame, facilitate engine mounting and ensure a stable center-to-center distance of the fan drive belt transmission. The power take-off mechanism, made in the form of a leading coupling half 6, mounted on the flywheel 4 with the help of shock absorbers 7, and a ring gear 8, which engages with the driven coupling half 70, ensures the operability of this unit in conditions of heavy oil fog. Exhaust manifold 13; fourteen; fifteen; 16, made with the common cylindrical part 20 lowered down, provide the necessary clearance between the exhaust manifolds and the walls of the tractor engine compartment. The oil sump 21 is located at

installation deep in the tractor frame, so the drain valve 22, oil filler pipe 23 and oil 24 located above the right exhaust manifold 13 provide ease of maintenance of the engine lubrication system in operation. A manual fuel priming pump 25, located on the rear left intake manifold 26, facilitates maintenance of the engine fuel system in operation. A cable 32 connecting the movable part 9 of the thrust of the drive of the high pressure fuel pump regulator with the fuel shutoff bracket 33 simplifies engine installation and eliminates the installation of an additional fuel shutdown drive. The fan drive belts are installed on the pulley 3 of the drive of the units and the fan drive pulley (not shown) through the pulley of the tensioner 34, and the location of the pulley of the tensioner 34 in the front of the engine provides easy access when adjusting the belt tension and replacing them. Coolant supply pipes are attached to the output flanges 37 and 41 of pipelines 35 and 39, the fluid to the transmission oil cooling radiator is attached to it, and coolant pipes are attached to the input flanges 38 and 42 to the cooling cavity of the right row of cylinder block 1 and to the oil-water radiator 40. Installation a breather 43 on an inclined surface 44 of the head cover 45 of the cylinder head 18 facilitates access to the high pressure fuel pump regulator during maintenance of the fuel system. The installation of an air damper 48 with manual and electromagnetic drive provides a quick stop and engine protection in emergency situations. The installation of the exhaust manifold pipe 50 to the flywheel housing 5 through spacers 51, the connection of the exhaust manifold pipe 50 to the rear exhaust manifolds 14 and 16 by means of bellows 52, supply pipes 53 and 54, as well as an additional pipe 55 and 56, allow the installation of a turbocharger 49 in the upper rear engine, which allows to reduce specific fuel consumption during engine operation on a tractor. The location of the generator 57 in the upper front of the engine facilitates access to it during installation of the electric circuit of the tractor and maintenance, and the belt drive 58 directly from the drive pulley of the units 3 facilitates the adjustment of the tension of the drive belts. The installation of a frame 59 with an air filter 60 and a muffler nozzle 61 on the engine, as well as a connection of the nozzle 61 to the turbine compressor 49 turbine outlet 62 and the air filter 60 with compressor inlet 49 made on the engine, make it easy to mount the engine in the tractor engine compartment. Housed

a transmission shutdown mechanism that can be switched off by moving the driven coupling half 70 along the splines of the shaft 69 gear 8 70 provides the convenience of starting the engine at low temperatures. Completed mounting holes 71 and 72 on the rear end of the housing 68 of the transmission shutdown mechanism and shaft 69 for installing an additional flywheel and flywheel housing provide ease of installation and docking of the inventive engine with an existing tractor transmission. A fan impeller with an increased outer diameter and width of the blades, as well as with a variable air flow direction, ensures the reliability of the cooling system and the convenience of the driver in summer and winter. The installation of a fan impeller on the radiator of the cooling system and its belt drive directly from the crankshaft pulley 3 provide ease of installation and maintenance.

Sources of information:

1. Firm "Komatsu. “Pipelayer D - 355C. Technical description and instruction manual. Japan, 1990

2. The company "Komatsu. “Bulldozer D - 355A. Technical description and instruction manual. Japan, 1989

3.AOOT “Tutaevsky Motor Plant.

“YaMZ engines -8421.10; YaMZ - 8424.10; YaMZ 8424.1001. Technical description and operating instructions, Tutaev, 1990.

Claims (1)

A V-shaped internal combustion diesel engine containing a cylinder block with a crankshaft installed in its bore and having a drive pulley on the front toe and a flywheel with power take-off on the rear, front support bracket, exhaust manifolds, lubrication system with oil sump, oil filler pipe and oil dipstick, fuel supply system having a high pressure fuel pump with a manual fuel priming pump installed on it and a control actuator ohm, a cooling system with a water pump, a water-oil cooler, a fan impeller, a belt fan drive, cooling cavities in the cylinder block and pipelines, a crankcase ventilation system, an intake manifold pipe and a charge air cooler interconnected, a flywheel housing, a turbocharger, an exhaust pipe , connection of the pipe of the exhaust manifolds to the rear exhaust manifolds, a generator, characterized in that the engine flywheel is made flat without a protrusion on the outer side For example, the power take-off mechanism is made in the form of a leading coupling half mounted on the flywheel with the help of shock absorbers and a gear ring, centering pin sleeves are installed at the junction of the front support bracket with the front cover, the exhaust manifolds are made with the cylindrical cylinder head lowered downward relative to the outlet part, the oil sump contains a drain valve, the oil filler pipe and the dipstick are located above the right exhaust manifold, the manual fuel priming pump is installed flax on the back of the left intake manifold and connected to the injection pump pipe, the thrust of the control drive of the regulator is made of two parts with a spring installed between them and a cable connecting the movable part to the fuel cut-off bracket, the fan impeller is made with an increased outer diameter and width of the blades, and with a variable air flow direction due to the rotation of the blades, the fan impeller and the fan drive shaft are installed directly on the radiator of the tractor cooling system, belt The fan drive is carried out directly from the crankshaft pulley through a tensioner, the cooling system pipelines connecting the water pump to the right row of cylinders, and the water pump with a water-oil cooler have gaps provided with outlet and inlet flanges, two crankcase breather systems are installed on an inclined surface cylinder head covers at the rear of each row of cylinders; the intake manifold pipe and charge air cooler are connected by an air damper oh with manual and electromagnetic drive, the turbocharger is installed at the top of the engine at the rear of the exhaust manifold pipe, attached to the flywheel housing through spacers, the connection of the exhaust manifold pipe to the rear exhaust manifolds is carried out using bellows, supply pipes, as well as additional connecting pipes, a belt drive a generator installed in the front upper part of the engine, carried out directly from the crankshaft pulley without a tension device, on a frame mounted above p at the end of the cylinder block, the air filter and the exhaust muffler pipe are fixed, the muffler pipe is connected to the turbine outlet using a special pipe and connecting pipe, the air filter is connected to the compressor inlet using two special pipes, and the upper pipe is mounted on the frame, on the front bracket the support is fixedly mounted on the front suspension beam, the transmission shutdown mechanism mounted on the flywheel housing is made in the form of a gear that can be switched off, in the rear tse disable transmission mechanism housing formed fastening holes for the installation of additional flywheel casing, at the rear end of the shaft disconnect transmission mechanism formed fastening holes for the installation of additional flywheel.