Set of cylinder head and engine block

FIELD: engines and pumps.

SUBSTANCE: single cylinder head of a cylinder (1) for installation on one of the multiple cylinder sections of a large internal combustion engine comprises a cylinder head body (2) having a gas system side (6), a rod pusher side (8) located opposite the gas system side (6) and a circular surface of the cylinder jacket (4) with a nozzle central hole (10), a pair of inlet holes and a pair of outlet holes. The nozzle central hole is in the center of the circular surface of the cylinder jacket (4). The central axis passes through the nozzle central hole from the gas system side (6) to the rod pusher side (8). The pair of outlet holes and the pair of inlet holes are on the opposite sides with respect to the central axis. A nozzle central recess (18) passes through the cylinder head body (2) to the nozzle central hole. The channel system of gas inlet (20) passes from the gas system side (6) through the cylinder head body (2) to the pair of inlet holes. A gas discharge channel system (22) passes from the pair of outlet holes through the cylinder head body (2) to the gas system side (6). The channel of the rod pusher (28) passes through the cylinder head body (2) on the rod pusher side (8). In total, there are five-cylinder attachment holes (30, 32, 34, 36, 38) passing through the cylinder head body (2) on the outer circular area of the single cylinder head (1). In total, there are five-cylinder attachment holes (30, 32, 34, 36, 38) arranged at a different distance from each other around the nozzle central recess. The engine block for a large internal combustion engine and the large internal combustion engine are also disclosed.

EFFECT: optimised structure of intake air circulation channel and exhaust gas, increased rigidity of the structure.

15 cl, 7 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises crankshaft 52, compression piston 72 fitted in compression cylinder 66 to slide therein and engaged with crankshaft 52 to reciprocate in intake and compression strokes per one rpm of crankshaft. Engine comprises expansion piston 74 fitted in compression cylinder 68 to slide therein and engaged with crankshaft 52 to reciprocate in expansion and exhaust strokes per one rpm of crankshaft. It includes, at least, two adapter channels 78 communicating said compression and expansion cylinders 66, 68. Each of said two channels 78 comprises adapter compression valve 84 and adapter expansion valve 86 to make pressure chamber 81 there between. Compression cylinder 66 receives air charge to compress it in, at least, one of said two adapter channels 78 per one crankshaft revolution. Invention covers designs versions and method of engine operation in idling.

EFFECT: maintaining high pressure in idling in adapter channels.

39 cl, 10 dwg, 1 tbl

FIELD: engines and pumps.

SUBSTANCE: intake channel 1 is cast in ICE cylinder block 2 to communicate with engine combustion chamber via valve annular seat 4. Intake channel 1 comprises, in fact, flat surface 6a conjugated with seat 4 via rounded transition zone 7b making rounded ledge 7a in cylinder block body 2. Invention covers also cylinder block head with intake channel, ICE with cylinder block head with intake channel, and method of cylinder block head fabrication.

EFFECT: optimum straight airflow to create large head ahead of valve.

11 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine (ICE) with split cycle includes crankshaft (52), compression (66) and expansion (68) cylinders, compression (72) and expansion (74) pistons, and spiral bypass channel (38). Compression piston (72) performs inlet and compression strokes per one turn of crankshaft (52). Expansion piston (74) performs expansion and outlet strokes per one turn of crankshaft (52). Spiral bypass channel (38) connects compression (66) and expansion (68) cylinders. Spiral bypass channel (38) includes bypass compression and expansion (41) valves, straight-line (39) and end (40) parts. High pressure cavity is made between bypass valves. Expansion bypass valve (41) includes stock (42) and head (43). Straight-line part (39) is located in end section of spiral bypass valve (38). Spiral end part (44) is an integral part of straight-line part (39). Spiral end part (40) is located above bypass expansion valve (41). Spiral end part (40) represents funnel (44). Funnel (44) is twisted about stock (42). Also, the invention deals with ICE containing two tangential spiral bypass channels (78). Channels (78) connect compression (66) and expansion (68) cylinders. Each tangential spiral bypass channel includes bypass valves (84, 86), straight-line tangential part (100) and spiral end part (102). Spiral end parts (102) are twisted in one direction.

EFFECT: quick flow of flammable mixture, its quick mixing and distribution prior to the beginning of combustion.

16 cl, 11 dwg

Ice cylinder head // 2406852

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine cylinder head comprises combustion engine with intake and discharge openings communicated with intake and discharge channels, ignition source and fuel feed mount assemblies. Intake and exhaust openings at the joint with combustion chamber are cylindrical, while their cross sections and, hence, those of intake and exhaust ducts differ. Intake openings are arranged diagonally relative to cylinder axis. Cylinder axis complies with intersection of lengthwise and lengthwise axes of cylinder head. Intake ducts, tangential in cross section, are curved in plan so that their part terminated in combustion chamber is oriented tangentially to engine cylinder wall, while outlet ducts are curved in plan with their outlet in combustion chamber oriented toward cylinder axis.

EFFECT: optimised engine operating in all operating conditions, reduced toxicity of waste gases.

2 dwg

Diesel engine // 2300650

FIELD: mechanical engineering; diesel engines.

SUBSTANCE: proposed diesel engine contains cylinder block, cylinder covers bolted to cylinder block, connecting rod-and-crank mechanism, valve-timing mechanism, high-pressure pump, auxiliaries drive and lubrication, fuel, cooling and starting systems. Double-acting cylinders are used in engine. Each cylinder is provided with outlet branch pipes from one side in upper and lower parts which are connected through valves of valve timing mechanism with exhaust manifold and through exhaust fan with atmosphere. Inlet branch pipes are made at other side in upper and lower part of each double-acting cylinder. Fitted inside double-acting cylinders are pistons with seals which are connected with crankshaft through connecting rod and piston rod connected with connecting rod. Combustion chamber separated from double-acting cylinders, two chambers per cylinder, are of similar design, being made in form of hollow vessel designed for high pressure. Each combustion chamber has cooling jacket, inlet and outlet branch pipes, outlet branch pipe of one combustion chamber being connected through valve of valve-timing mechanism with upper inlet branch pipe of double-acting cylinder. Outlet branch pipe of other combustion chamber is connected with lower inlet branch pipe of the same double-acting cylinder. Each combustion chamber has nozzle connected by pipeline with high-pressure pump which is kinematically coupled with crankshaft, glow plug being essentially a spiral wound on insulation base and heated by electric current, and inlet scavenging valve communicating with atmosphere through air filter. Cylinder-receiver is furnished with inlet and outlet branch pipes, the latter being connected with inlet branch pipes of each combustion chamber through valves of valve-timing mechanism. Multicylinder compressor whose shaft is coupled with shaft of electric motor supplied by storage batteries or dc generator is pneumatically connected with inlet branch pipes of cylinder-receiver. Inlet branch pipe of said compressor communicates with atmosphere through air filter.

EFFECT: increased efficiency of diesel engine, provision of uniform rotation and load on crankshaft, reduced discharged of non-combusted fuel.

11 dwg

The invention relates to the field of engineering, in particular to the development of diesel engines with undivided combustion chamber

Collector blower // 2078233
The invention relates to the field of internal combustion engines and is intended for use on automotive engines

The invention relates to internal combustion engines

FIELD: engines and pumps.

SUBSTANCE: control module comprises cylinder head cover (10) and camshaft (14), particularly, spline shaft with cam (16, 17) fitted on camshaft (14). Cylinder head cover (10) incorporates split support (12) for fitting the camshaft (14) in place with support basic part (28) and support cover (30) that make the support bore with inside radial support surface (32). Cam (16, 17) has support element (26) arranged in support (12) radially between camshaft (14) and support surface (32). Invention covers also the control module assembly procedure.

EFFECT: simplified assembly, possibility to vary cam lift.

15 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: two-stroke piston diesel engine comprises a cylinder with blowdown windows, a piston installed in it with a steam, a cylinder lid with one outlet valve and one or two nozzles installed in it. A steel insert is installed (pressed) in the cylinder lid with end ledges in the form of a ring with tangential slots, forming channels that connect the zone of displacement of air volume limited between the outer diameter of the insert ring and the cylinder diameter and flat sections of the insert and the bottom of the piston with the combustion chamber, and the vector of speeds has identical direction, the insert ring enters the cylindrical part of the groove in the piston bottom with the piston position in the upper dead point. The rounded edge is made from heat-resistant steel pressed in the bottom of the piston in the form of a ring or is coated with fire-resistant steel, for instance, by the method of plasma sputtering.

EFFECT: increased capacity, improved environmental parameters.

2 cl, 2 dwg

FIELD: metallurgy.

SUBSTANCE: cast iron alloy with flaked graphite contains, wt %: 2.80-3.60 carbon, 1.00-1.70 silicon, 0.10-1.20 manganese, 0.03-0.15 sulfur, 0.05-0.30 chrome, 0.05-0.30 molybdenum, 0.05-0.20 tin, iron and regular contaminant admixtures - balance.

EFFECT: improved heat conductivity, tensile strength, reduced probability of fatigue crack appearance, providing for increased durability.

10 cl, 1 dwg, 1 tbl, 4 ex

FIELD: engines and pumps.

SUBSTANCE: bimetallic bottom of internal combustion engine (ICE) cylinder head includes body of cylinder head (1) with cast-iron insert (2). Hemispherical cavities (3) located along concentrical circles are provided in insert (2), between edge of insert and valve holes, in upper interface plane of insert (2) and body of cylinder head (1).

EFFECT: reducing thermal movements and improving the design reliability.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: exhaust device comprises cylinder head block 10 with exhaust channels 12. Each first end 14 of every channel is communicated with combustion chamber 16 while second ends enters air collector chamber 20 of exhaust manifold 22 integrated into cylinder head block. In compliance with this invention, said air collector chamber 20 is arranged in element 26 arranged inside cylinder head 10. Note here that said plug-in element 26 is thermally isolated from cylinder block 10 by thermal isolation means 28. Plug-in element 26 is made up of tubular insert 26 with orifices 34 and outlet channel 24 fitted in cylinder head block inlet 32. Orifice 24 communicated with exhaust channel second ends 18 while inlet channel 24 extends beyond cylinder head 10. The inlet channel (24) is communicated with the exhaust gases cleaning device.

EFFECT: efficient off-gas cleaning, thermal isolation of manifold from cylinder head block.

7 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: head of cylinder block consists of case of cylinder block head, of case of cam shaft set on case of cylinder block head and of cover of cam shafts assembled on case of cam shafts. The case of the cam shafts has through orifices wherein there are installed bolts for fixing the case of the cam shafts together with the cover of the cam shafts to the case of the cylinder block head at engine assembly. Internal threads are made on internal surfaces of through orifices correspondingly. At treatment of orifices for the cam shafts before assembly of the engine the second bolts of bigger diametre, than the first bolts, are temporarily screwed into internal thread of through orifices for fixing the cover of the cam shafts to the case of the cam shafts.

EFFECT: simplified process of making orifices for cam shafts.

3 cl, 5 dwg

Cylinder head // 2397349

FIELD: engines and pumps.

SUBSTANCE: proposed cylinder head comprises: section of lower support wall, section of outer peripheral wall that sets inner chamber accommodating valves opening and closing combustion chamber, rockets, camshaft to drive rockers and rocker shaft, section of lengthwise wall running along camshaft inside aforesaid chamber, crosswise wall section with one end made integral with lengthwise wall section, camshaft backup section arranged on crosswise wall section, rocker shaft backup section arranged on crosswise section wall so that rocker shaft position in height from lower wall section is shifted from camshaft position in height from lower wall section, and section of sleeves receiving cylinder bolts arranged on lower wall section to overlap crosswise wall section in height. Crosswise wall section comprises transition section through which cylinder head attachment bolt passes into bolt sleeve to overlap section of aforesaid sleeves in height.

EFFECT: higher rigidity and decreased weight of head.

4 cl, 6 dwg

Head of cylinders // 2391527

FIELD: engines and pumps.

SUBSTANCE: head of cylinders includes the following: section of lower support wall, section of external peripheral wall having the space inside itself, section of longitudinal wall, which passes and has in that cavity the inlet side where the outlet distributing shaft is located, the first sections of transverse walls, which are located on the inlet side, on which there are support sections for supporting the inlet distributing shaft on them, the second sections of transverse walls, which are located on the inlet side, on which there formed are the second support sections for supporting drive units of controlled valves on them, sections of transverse walls, which are located on the outlet side, on which there formed are support sections for supporting outlet distributing shaft on them. The second sections of transverse walls are located below the first sections of transverse walls in direction as to height from section of lower support wall. Sections of transverse walls of the outlet side are located above the second sections of transverse walls in direction as to height. Upper end surface of section of lower wall, which is located on outlet side, is located above the upper end surface of section of lower wall, which is located on inlet side in direction as to height.

EFFECT: increasing rigidity of inlet side and outlet side and maintaining rigidity balance between them.

3 cl, 6 dwg

FIELD: mechanical engineering; diesel engines.

SUBSTANCE: cylinder head of diesel engine contains housing, intake and outlet holes with valve seats with fitted-in valves with bridge in between, nozzle cup installing the nozzle arranged in housing, and thermocompensating slots for compensating deformations at heating and cooling. Said slots are straight-line through ones, being arranged close to nozzle hole square to fire bottom. Said thermocompensating slots in normal section are rectangular, one of smaller sides of rectangle pointed to nozzle is rounded off. Depth of thermocompensating slots does not exceed 3.5-5 mm, and their width is 1 mm. Invention reduces thermofatigue stresses in bridge area by 50% and prevents accumulation of residual stresses. Implementing of process does not required complex tooling and rigging.

EFFECT: increased service life of cylinder head, reduced time taken for implementing the process.

4 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed cylinder block of liquid-cooled internal combustion engine contains walls forming cylinder spaces made in form of plate members united in upper part by ring projections with support and centering surfaces for mounting cylinder liners. Compensating cavities of depth equal to 1.0-1.5 mm and width equal to width of support surface are made in ring projections from side of support surfaces. Orientation and extension of compensating cavities in cylinder block are determined by chord 1 of arc of circumference with radius R equal to radius of centering surface of ring projection, and central angle α equal to 35°-45° related by l=2R sin α/2, chord being parallel to axis of crankshaft.

EFFECT: increased wear resistance of parts of cylinder-piston group of engines, reduced specific fuel consumption and oil burning loss.

17 cl

FIELD: engines and pumps.

SUBSTANCE: invention relates to injection control in engines with fuel spontaneous combustion. The invention essence consists in that the fuel injection pressure is regulated, and also the starting moment of its injection in response to the fuel-air mix combustion feedback. And the injection pressure is increased if the starting moment of injection is late.

EFFECT: decrease of toxicity of the exhaust gases at combustion of fuels with different cetane numbers.

10 cl, 5 dwg

Rotary diesel ice // 2416727

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises stator with epitrochoidal bore to accommodate compressor rotor to perform planetary motion therein and engine rotor, both rotors being separated by a web. Said web has channel to communicated compressor with engine. Said rotors feature triangular section. Aforesaid channel made in said web communicates pressure chamber of compressor with after-suction chamber of the engine. Compressor rotor revolves in synchronism with engine rotor to outrun the latter. Shaft eccentric journals whereon compressor and engine rotors run are turned through 45-60 degrees relative to each other. Compressor rotor forces air into rotary engine via aforesaid channel to reach maximum pressure in compression stroke. Engine stator accommodates two fuel injectors. First injector, as seen along engine rotor rotation, serves to inject fuel charge during engine operating volume decrease. Second injector (for diesel fuel) serves to start and idle rotary engine.

EFFECT: increased compression ratio, higher efficiency, longer life.

Oxygen-oil engine // 2400639

FIELD: engines and pumps.

SUBSTANCE: proposed engine runs on oxygen-air mix compressed to initiate chain reaction of carbon molecules of engine oils fed into compression chamber as a microdose when piston reaches TDC. Oxygen is fed from oxygen tank on starting, while in engine stable operation compressor is cut in, arranged in the chamber with set of molecular sieves and membrane modules to clean atmospheric oxygen of nitrogen and fill up oxygen in said tank.

EFFECT: higher efficiency and reduced toxicity of waste gases.

2 dwg.

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