Internal combustion engine and method of its operation

FIELD: engines and pumps.

SUBSTANCE: invention relates to in-line four-cylinder internal combustion engines. Summary: engine comprises at least one cylinders head, four cylinders (1, 2, 3, 4) with linear arrangement along longitudinal axis of said at least one cylinders head and crankshaft (15), which belongs to crank drive and which comprises crank (11, 12, 13, 14) for each cylinder (1, 2, 3, 4), installed in accordance with specified cylinder (1, 2, 3, 4). Crankshaft cranks (11, 12, 13, 14) are equally spaced relative to each other along crankshaft (15) longitudinal axis (15a). Each cylinder (1, 2, 3, 4) contains at least one outlet (5) to discharge exhaust gases from cylinder (1, 2, 3, 4) through exhaust system (6), for this purpose discharge line (8) adjoins each outlet hole (5). Cylinders (1, 2, 3, 4) are arranged in two groups, wherein in each case one outer cylinder (1, 4) and adjoining to it inner cylinder (2, 3) form group, and discharge lines (8) of cylinders (1, 2, 3, 4) are merged together, to produce common discharge line (10), so that exhaust manifold (7) is formed in stages. At that, in each case outlet lines (8) of each group of cylinders are merged together to make partial discharge line (9), and then occurs merging of two partial discharge lines (9) of two groups of cylinders, and common discharge line (10) is produced. According to invention, two cylinders (1, 2, 3, 4) crankshaft two cranks (11, 12, 13, 14) of each set of cylinders are not shifted relative to each other in circular direction around crankshaft (15) longitudinal axis (15a), so that cylinders (1, 2, 3, 4) of said group of cylinders are mechanically synchronized to each other. At that, one group of cylinders crankshaft cranks (11, 12, 13, 14) are arranged so, that are displaced by 180 in circular direction of crankshaft (15) relative to cranks (11, 12, 13, 14) of another group of cylinders.

EFFECT: technical result is exclusion of pressure waves mutual influence or fluctuations in exhaust system in case of charge in cylinders change.

17 cl, 3 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: proposed engine comprises crankshaft 52, compression piston 74 fitted in compression cylinder 68 to slide therein and engaged with crankshaft 52 to reciprocate in intake and compression strokes per one revolution of crankshaft. It includes also adapter channel 78 communicating high pressure gas source with expansion cylinder 68 and fuel injector 90 to force fuel into adapter channel 78. Adapter expansion channel 86 controls communication between adapter channel 78 and expansion cylinder 68. Valve 86 comprises head and stem. Fuel injector 90 comprises set of orifices arranged at injector nozzle and directed to, at least, one target whereto fuel is forced to make, at least, one spray. At least, one target is located above adapter valve head seat 86 and between adapter channel walls 78 and expansion valve rod. Invention covers also design versions and method of fuel injection.

EFFECT: better fuel spray.

27 cl, 21 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed engine consists of cylinder block 1, cylinders 2, con-rod-and-piston mechanism, composite crankshaft 3, cylinder block head 5, and valve timing gear. Cylinder block 1 consists of, at least, two composite coupled sections 5. Said sections are coupled by bolts fed through openings made in cylinder block parallel with crankshaft rotational axis. Every said section 5 represents a bulky structural H-beam-shaped part. Its top section has recesses made opposite semicircular webs 9, their sizes corresponding to those of outer contour of cylinder sleeve 11 dissected in axial line. Section center has through hole 13 of crankshaft bearing 13. Con-rod-and-piston modules are mounted between sections 5. Said module comprises sleeve 11 to house piston 15 pin-coupled with con-rod 17 wherein fitted is rod bearing 19 with support bush 19 coupled with webs 20 via spacer rings 21, blocks 22 and bolt joint 23. Webs 20 accommodate modules of main bearings composed of main bearing 12, split splined bush 24, blocks 25, spacer rings 25 coupled by bolts 27. End cover 30 of auxiliary mechanism drive 31 and clutch case are fitted on sides of cylinder block 1.

EFFECT: decreased weight and overall dimensions, higher quality of assembly.

8 dwg

The invention relates to engine, in particular to a multi-cylinder internal combustion engines (ice) with fuel injection into the cylinders

The invention relates to the design and construction of internal combustion engines

The invention relates to heat engines, in particular internal combustion engines with self-ignition (fuel injected), and gasoline used in road transport and aviation

Piston machine // 2078941
The invention relates to the field of engineering, namely, piston machines, and relates to improvements in compressors, pumps, engines, cryogenic devices

FIELD: transport.

SUBSTANCE: used gas exhaust system (10) for mechanical vehicle comprises proportioner (14) to feed reducing means to exhaust pipe (12) for additional treatment of used gas. At least one vent element (18, 26, 28, 34, 38, 40, 44, 46, 48, 50) feeds gas (24, 36) to exhaust pipe section (12) for feed of said reducing means. Note here that vent element (18, 26, 28, 34, 38, 40, 44, 46, 48, 50) at discharge pipe (12) nearby wall (22) can set higher content of gas (24, 36) than that in section of exhaust pipe (12) remote from wall (22). Besides, invention relates to operation of abode described system (10).

EFFECT: higher reliability.

18 cl, 8 dwg

FIELD: transport.

SUBSTANCE: device (2) for vehicle (4) exhaust gases (20) aftertreatment by means of liquid reducing agent (18) delivery to exhaust gases (20) in exhaust pipe (32). The device (2) can locally heat surface (31) inside exhaust pipe with the help of Peltier element (6) using heating energy of exhaust gases (20) to evaporate liquid reducing agent (18) which reaches surface (31) and thus to prevent formation of reducing agent deposits inside exhaust pipe (32). Proposed invention also relates to method of vehicle exhaust gas aftertreatment using device (2) containing Peltier element (6).

EFFECT: higher speed of injected reducer evaporation and providing device operation at low temperatures of exhaust gases.

12 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed device comprises mixing pipe (2), fluid injector (4) to force fluid in the latter and inlet channel (6) arranged upstream of mixing pipe. Inlet channel comprises first and second circular-section sections (14) and (15), second one being arranged downstream the first one to surround the mixing pipe. First section surrounds the second section. Mixing branch pipe comprises flow reversing section (18) to communicate first section circular outlet (16) with second section circular inlet (17). It can reverse exhaust gas flow in inlet channel to make it flow via second section in direction opposite that of exhaust gas flow in first section.

EFFECT: efficient distribution of urea solution in exhaust gases to decrease risks of urea solution attack the one and the same wall point at mixing pipe.

10 cl, 2 dwg