CN109252955B - Multicylinder high power density high efficiency dual cycle internal combustion engine - Google Patents

Multicylinder high power density high efficiency dual cycle internal combustion engine Download PDF

Info

Publication number
CN109252955B
CN109252955B CN201810384373.1A CN201810384373A CN109252955B CN 109252955 B CN109252955 B CN 109252955B CN 201810384373 A CN201810384373 A CN 201810384373A CN 109252955 B CN109252955 B CN 109252955B
Authority
CN
China
Prior art keywords
cylinder
air chamber
branch channel
sealing
auxiliary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810384373.1A
Other languages
Chinese (zh)
Other versions
CN109252955A (en
Inventor
李忠福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CN109252955A publication Critical patent/CN109252955A/en
Application granted granted Critical
Publication of CN109252955B publication Critical patent/CN109252955B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/36—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/06—Engines with prolonged expansion in compound cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/002—Double acting engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
    • F01L15/18—Valves arrangements not provided for in preceding subgroups of this main group
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1812—Number of cylinders three

Abstract

The invention belongs to the technical field of internal combustion engines, and particularly relates to a multi-cylinder high-power-density high-efficiency dual-cycle internal combustion engine. Including first cylinder, second cylinder and the vice jar that is four-stroke double-cycle, first cylinder, second cylinder and vice jar structure are the same, all including last air chamber and the lower air chamber that is located the piston both sides, and the piston all with same crank connection, air chamber air intake valve intercommunication on first cylinder air chamber exhaust valve and the second cylinder air chamber exhaust valve all with the vice jar, air chamber air intake valve intercommunication under first cylinder air chamber exhaust valve and the second cylinder air chamber exhaust valve all with the vice jar of vice jar. The invention uses the special combination of the pure double-circulation internal combustion engine cylinder, improves the power density, does not consume fuel in the auxiliary cylinder, only uses waste gas to do work, and greatly improves the efficiency, thereby realizing the purpose of high power density and high efficiency of the internal combustion engine.

Description

Multicylinder high power density high efficiency dual cycle internal combustion engine
Technical Field
The invention belongs to the technical field of internal combustion engines, and particularly relates to a multi-cylinder high-power-density high-efficiency dual-cycle internal combustion engine.
Background
The present applied multi-cylinder internal combustion engine has single circulation of each cylinder, and each cylinder consumes fuel, so that the internal combustion engine has low power density and low efficiency.
At present, in order to improve the power density, a plurality of people propose to seal the end close to the crank of the cylinder, form an upper air chamber and a lower air chamber at the two ends of the piston for working, and add parts such as a piston rod, a guide rail, a cross head and the like between the piston and a connecting rod, so that the volume is increased by about one third, the power density of the internal combustion engine is greatly reduced, and the serious defect of the double-circulation internal combustion steam engine is caused.
At present, the theory that the cylinders in the multi-cylinder combination do not consume fuel exists, the single-cycle is adopted, when the piston reciprocates, the piston is pushed by waste gas in one way, the other way consumes energy, the efficiency is improved a little, and the power density is small; the double-circulation cylinder is not a pure internal combustion engine, so that the efficiency is improved relatively high, and the power density is low. Internal combustion engines with high power density and efficiency are lacking.
Disclosure of Invention
In view of the above problems, the present invention provides a multicylinder high power density high efficiency dual cycle internal combustion engine to solve the problem of improving both power density and efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high-efficient dual cycle internal-combustion engine of multi-cylinder high power density, is including first cylinder, second cylinder and the vice jar that is four-stroke dual cycle, first cylinder, second cylinder and vice jar all including the last air chamber and the lower air chamber that are located the piston both sides, and the piston all with the crank connection through the connecting rod, air chamber exhaust valve on the first cylinder of first cylinder with air chamber exhaust valve on the second cylinder of second cylinder all with air chamber intake valve intercommunication on the vice jar of vice jar, air chamber exhaust valve under the first cylinder of first cylinder with air chamber exhaust valve under the second cylinder of second cylinder all with air chamber intake valve intercommunication under the vice jar of vice jar.
The first cylinder and the second cylinder are one or a plurality of cylinders arranged in parallel, an intake valve, an exhaust valve and a spark plug or an oil nozzle are arranged on an upper cylinder cover and a lower cylinder cover of each of the first cylinder and the second cylinder, and an intake valve and an exhaust valve are arranged on an upper cylinder cover and a lower cylinder cover of the auxiliary cylinder.
The exhaust valve of the first air cylinder upper air chamber is provided with a first air cylinder upper air chamber exhaust branch channel and a first air cylinder upper air chamber air supply branch channel, the air inlet valve of the auxiliary air cylinder upper air chamber is communicated with the first air cylinder upper air chamber air supply branch channel, and the first air cylinder upper air chamber exhaust branch channel and the first air cylinder upper air chamber air supply branch channel are respectively provided with a first air cylinder upper air chamber positive branch throttle valve and a first air cylinder upper air chamber auxiliary branch throttle valve; the exhaust valve of the first lower air cylinder is provided with an exhaust branch channel of the first lower air cylinder and an air supply branch channel of the first lower air cylinder, the inlet valve of the lower air cylinder of the auxiliary cylinder is communicated with the air supply branch channel of the lower air cylinder of the first air cylinder, and the exhaust branch channel of the lower air cylinder of the first air cylinder and the air supply branch channel of the lower air cylinder of the first air cylinder are respectively provided with a positive branch throttle valve of the lower air cylinder of the first air cylinder and an auxiliary branch throttle valve of the lower air cylinder of the first air cylinder.
The exhaust valve of the upper air chamber of the second cylinder is provided with an exhaust branch channel of the upper air chamber of the second cylinder and an air supply branch channel of the upper air chamber of the second cylinder, the inlet valve of the upper air chamber of the auxiliary cylinder is communicated with the air supply branch channel of the upper air chamber of the second cylinder, and the exhaust branch channel of the upper air chamber of the second cylinder and the air supply branch channel of the upper air chamber of the second cylinder are respectively provided with a positive branch throttle valve of the upper air chamber of the second cylinder and a secondary branch throttle valve of the upper air chamber of the second cylinder; and the lower air chamber exhaust valve of the second cylinder is provided with a lower air chamber exhaust branch channel of the second cylinder and a lower air chamber air supply branch channel of the second cylinder, the lower air chamber inlet valve of the auxiliary cylinder is communicated with the lower air chamber air supply branch channel of the second cylinder, and the lower air chamber air supply branch channel of the second cylinder are respectively provided with a positive air chamber branch throttle of the lower air chamber of the second cylinder and a secondary air chamber branch throttle of the lower air chamber of the second cylinder.
The first cylinder leads the secondary cylinder stroke by 180 degrees, the second cylinder lags the secondary cylinder stroke by 180 degrees, and the first and second cylinder strokes differ by 360 degrees.
The cylinder diameters of the first cylinder and the second cylinder are the same, the cylinder diameter of the auxiliary cylinder is 1-34 times of the cylinder diameter of the first cylinder, and the mass of the cylinder, the piston and the connecting rod part of the auxiliary cylinder is 0.01-3.14 times of the mass of the corresponding part of the first cylinder.
One end of the connecting rod is hinged to the piston, the other end of the connecting rod penetrates through the lower cylinder cover and is connected with the crank, a lower cylinder cover opening is arranged on the lower cylinder cover, the two ends of the lower cylinder cover opening are arched, the middle of the lower cylinder cover opening is of a rectangular structure, and a sealing device used for sealing a gap between the connecting rod and the lower cylinder cover is arranged in the lower cylinder cover opening.
The inner wall of the lower cylinder cover opening is provided with a cover groove with a double-layer structure, the sealing device comprises a sealing sheet group I, a sealing sheet group II and sealing cakes, the sealing sheet group I and the sealing sheet group II are respectively connected in the two layers of grooves of the cover groove in a sliding mode, the sealing sheet group I and the sealing sheet group II respectively comprise a plurality of sealing sheets which are overlapped and gradually increased in length or gradually decreased in length, strip-shaped holes are formed in the sealing sheets along the length direction, the sealing cakes are contained in the strip-shaped holes of the shortest sealing sheets in the sealing sheet group I and the sealing sheet group II and can rotate, and the connecting rod penetrates through the sealing cakes and can move along the axial direction.
The strip-shaped holes on the plurality of sealing sheets are equal in width, the length of the strip-shaped holes is gradually increased or decreased, and the lower cylinder cover opening is completely sealed by the sealing cakes and the plurality of sealing sheets.
The sealing cake is provided with a cylindrical hole along the radial direction, a plurality of ring grooves distributed along the axial direction are arranged in the cylindrical hole, a rod ring is arranged in each ring groove, and the connecting rod penetrates through the cylindrical hole and is sealed through the rod ring; the inner part of the closed cake is provided with three cake substrate elastic layers which are vertical to each other, and the outer surface of the closed cake is provided with a cake substrate wear-resistant layer.
The invention has the advantages and beneficial effects that:
the invention has the following advantages:
1. the double-circulation internal combustion engine of the invention has the advantages that the volume is increased by less than one tenth of the original engine, the power can be increased by about 80 percent, the power density is increased by about 73 percent, the volume of the engine is increased little, the power is increased greatly, and the aim of greatly increasing the power density which is most desired by people is fulfilled.
2. The invention uses the special combination of the double-circulation internal combustion engine cylinder, uses the waste gas to do work, and improves the efficiency.
3. Compared with other double-circulation heat engines, the double-circulation heat engine has the advantages of small volume, simple structure, easy improvement and easy manufacture.
Drawings
FIG. 1 is a schematic representation of the operation of the first stroke of the third cylinder bank of the present invention;
FIG. 2 is a schematic representation of the operation of the second stroke of the third cylinder bank of the present invention;
FIG. 3 is a schematic representation of the third stroke operation of the third cylinder bank of the present invention;
FIG. 4 is a schematic representation of the fourth stroke operation of the third cylinder bank of the present invention;
FIG. 5 is a schematic diagram of a four-stroke, two-cycle internal combustion engine according to the present invention;
FIG. 6 is a schematic structural view of the lower cylinder head of the present invention;
FIG. 7 is a perspective view of a double cover groove of the present invention;
FIG. 8 is a schematic cross-sectional view of a double-layered lid of the present invention;
FIG. 9 is a schematic view of the construction of the closure panel of the present invention;
FIG. 10 is a schematic view of the structure of the closure strip assembly of the present invention;
FIG. 11 is a schematic structural view of a first embodiment of the closure panel of the present invention;
FIG. 12 is a schematic structural view of a closed cake according to the present invention;
FIG. 13 is a side view of FIG. 12;
FIG. 14 is a cross-sectional view of a closed cake of the present invention;
FIG. 15 is a schematic structural view of a second embodiment of the closure panel of the present invention;
FIG. 16 is a schematic structural view of a third embodiment of the closure panel of the present invention.
In the figure: a is a first cylinder, 4aA is an inlet valve of an upper air chamber of the first cylinder, 5aA is an exhaust valve of the upper air chamber of the first cylinder, 4bA is an inlet valve of a lower air chamber of the first cylinder, 5bA is an exhaust valve of the lower air chamber of the first cylinder, and K1For positively throttling the upper air chamber of the first cylinder, S1For the auxiliary part of the upper chamber of the first cylinder, K3Is a positive partial throttle valve of a lower air chamber of a first cylinder S3The air chamber is a sub-air throttle of a lower air chamber of the first cylinder;
b is a second cylinder, 4aB is an inlet valve of an upper air chamber of the second cylinder, and 5aB is an upper air chamber of the second cylinderA chamber exhaust valve, 4bB is an intake valve of a lower air chamber of a second cylinder, 5bB is an exhaust valve of a lower air chamber of the second cylinder, K2Is a positive partial throttle valve of an air chamber on a second cylinder S2For a secondary partial throttle of the upper air chamber of the second cylinder, K4Is a positive partial throttle valve of a lower air chamber of a second cylinder S4The air chamber is a secondary sub-throttle valve of a lower air chamber of a second cylinder;
c is an auxiliary cylinder, 4aC is an inlet valve of an upper air chamber of the auxiliary cylinder, 5aC is an exhaust valve of the upper air chamber of the auxiliary cylinder, 4bC is an inlet valve of a lower air chamber of the auxiliary cylinder, and 5bC is an exhaust valve of the lower air chamber of the auxiliary cylinder;
the cylinder is 1, the piston is 2, the connecting rod is 3, the crank is 4, the upper cylinder cover is 5, the lower cylinder cover is 6, the upper air chamber is 7, the lower air chamber is 8, the lower cylinder cover is 9, the opening of the lower cylinder cover is 10, the cover groove is 10, the upper side wall of the upper groove of the cover groove is 11, the middle partition plate is 12, the lower side wall of the lower groove of the cover groove is 13, the sealing sheets are 14a-14n, the sealing sheets in the sealing sheet group I are 14a '-14 n', the sealing sheets in the sealing sheet group II are 15, the strip-shaped holes are 16, the sealing cakes are 17, the cylindrical holes are 18, the ring groove is 26, the cake substrate elastic layer is 27, the cake substrate wear-resistant layer is 34, and the rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1 and FIG. 5, the multi-cylinder high-power-density high-efficiency dual-cycle internal combustion engine provided by the invention comprises a first cylinder A, a second cylinder B and an auxiliary cylinder C which are all four-stroke dual-cycle, wherein the first cylinder A, the second cylinder B and the auxiliary cylinder C respectively comprise an upper air chamber 7 and a lower air chamber 8 which are positioned at two sides of a piston 2, the piston 2 is connected with a crank 4 through a connecting rod 3, a first cylinder upper air chamber exhaust valve 5aA of the first cylinder A and a second cylinder upper air chamber exhaust valve 5aB of the second cylinder B are both communicated with an auxiliary cylinder upper air chamber intake valve 4aC of the auxiliary cylinder C, and a first cylinder lower air chamber exhaust valve 5bA of the first cylinder A and a second cylinder lower air chamber exhaust valve 5bB of the second cylinder B are both communicated with an auxiliary cylinder lower air chamber intake valve 4bC of the auxiliary cylinder C.
The upper cylinder cover 5 and the lower cylinder cover 6 of the first cylinder A and the second cylinder B are respectively provided with an intake valve, an exhaust valve, a spark plug or an oil nozzle, and the like, the upper cylinder cover and the lower cylinder cover of the auxiliary cylinder C are respectively provided with an intake valve, an exhaust valve, a spark plug or an oil nozzle, and the like, and the spark plug or the oil nozzle is not arranged.
The exhaust branch channel of the upper air chamber of the first air cylinder and the air supply branch channel of the upper air chamber of the first air cylinder are arranged at the position of 5aA of the exhaust valve of the upper air chamber of the first air cylinder, the inlet valve 4aC of the upper air chamber of the auxiliary air cylinder is communicated with the air supply branch channel of the upper air chamber of the first air cylinder, and the exhaust branch channel of the upper air chamber of the first air cylinder and the air supply branch channel of the upper air chamber of the first air cylinder are respectively provided with a positive branch throttle valve K of the upper air1And a secondary air chamber sub-throttle valve S of the upper air chamber of the first cylinder1(ii) a The exhaust branch channel of the first lower air cylinder and the air supply branch channel of the first lower air cylinder are arranged at the position of 5bA of the exhaust valve of the first lower air cylinder, the inlet valve 4bC of the auxiliary lower air cylinder is communicated with the air supply branch channel of the first lower air cylinder, and the exhaust branch channel of the first lower air cylinder and the air supply branch channel of the first lower air cylinder are respectively provided with a positive branch throttle K of the first lower air cylinder3And a sub-air-chamber sub-air-throttle valve S of the lower air chamber of the first cylinder3。
The exhaust branch channel of the upper air chamber of the second cylinder and the air supply branch channel of the upper air chamber of the second cylinder are arranged at the position of 5aB of the exhaust valve of the upper air chamber of the second cylinder, the inlet valve 4aC of the upper air chamber of the auxiliary cylinder is communicated with the air supply branch channel of the upper air chamber of the second cylinder, and the exhaust branch channel of the upper air chamber of the second cylinder and the air supply branch channel of the upper air chamber of the second cylinder are respectively provided with a positive branch throttle valve K of the upper air chamber of the second cylinder2And a secondary sub-throttle valve S of an upper air chamber of a second cylinder2(ii) a A lower air chamber exhaust branch channel of the second air cylinder and a lower air chamber air supply branch channel of the second air cylinder are arranged at the position of 5bB of an exhaust valve of the lower air chamber of the second air cylinder, an inlet valve 4bC of a lower air chamber of the auxiliary cylinder is communicated with the lower air chamber air supply branch channel of the second air cylinder, and a positive branch throttle valve K of the lower air chamber of the second air cylinder is respectively arranged on the lower air chamber air supply branch channel of the second air cylinder and the lower air chamber air supply branch channel of the second air cylinder4And a sub-partial throttle valve S of a lower air chamber of a second cylinder4。
And the waste gas from the exhaust valve of the first cylinder A and the second cylinder B is exhausted through the exhaust branch channel or used for supplying air for the auxiliary cylinder through the air supply channel. The exhaust valves of the first cylinder A and the second cylinder B for waste gas are respectively provided with a larger advance angle and a larger delay angle, the advance angle and the delay angle of the inlet valve of the auxiliary cylinder C connected with the first cylinder A are very small or none, the exhaust valve of the cylinder and the inlet valve of the auxiliary cylinder are asynchronous, when the exhaust valve of the supply cylinder is opened and the inlet valve of the auxiliary cylinder is closed, the positive throttle valve is opened to provide a discharge channel for waste gas, and the auxiliary sub-throttle valve is closed to prevent the waste gas from flowing into other supply cylinders. Therefore, the auxiliary partial throttle and the positive partial throttle are used for solving the problems of the advance angle and the delay angle of the exhaust valves and the auxiliary cylinder intake valves of the first cylinder A and the second cylinder B.
The stroke of the first cylinder A is advanced 180 degrees than that of the auxiliary cylinder C, the stroke of the second cylinder B is delayed 180 degrees than that of the auxiliary cylinder C, and the stroke difference between the first cylinder A and the second cylinder B is 360 degrees. The cylinder diameters of the first cylinder A and the second cylinder B are the same, the cylinder diameter of the auxiliary cylinder C is 1-34 times of the cylinder diameter of the first cylinder A, the mass of parts such as a cylinder, a piston, a connecting rod and the like of the auxiliary cylinder C is 0.01-3.14 times of the mass of corresponding parts of the first cylinder A, and the mass of unit volume is light.
As shown in fig. 5, the first cylinder a, the second cylinder B and the auxiliary cylinder C are all a four-stroke two-cycle internal combustion engine, and include a cylinder 1, a piston 2, a connecting rod 3 and a sealing device, wherein both ends of the cylinder 1 are provided with an upper cylinder cover 5 and a lower cylinder cover 6, the piston 2 is accommodated in the cylinder 1 and divides the cylinder 1 into an upper air chamber 7 and a lower air chamber 8, one end of the connecting rod 3 is hinged to the piston 2, the other end of the connecting rod 3 penetrates out of the lower cylinder cover 6 and is hinged to a crank 4, the lower cylinder cover 6 is provided with a sealing device for sealing a gap between the connecting rod 3 and the lower cylinder cover 6, and the sealing device is used for sealing a gap between the connecting rod 3 and the lower cylinder cover 6 which do reciprocating.
As shown in fig. 6, the lower cylinder cover 6 is provided with a lower cylinder cover opening 9 with two ends being arched and a middle being rectangular, the inner wall of the lower cylinder cover opening 9 is provided with a cover groove 10, and the sealing device is a sheet ring sealing device which is accommodated in the lower cylinder cover opening 9 and is in fit connection with the cover groove 10. The side wall and the bottom wall of the cover groove 10 are perpendicular to each other, the side wall is perpendicular to the cylinder wall, and the bottom wall is parallel to the cylinder wall.
As shown in fig. 7-8, the cover groove 10 is a double-layer structure, the cover groove 10 includes two layers of grooves arranged from top to bottom, the two layers of grooves are separated by a middle partition plate 12, the middle partition plate 12 is a lower side wall of the upper groove and an upper side wall of the lower groove, and two sides are an upper side wall 11 of the upper groove in the cover groove and a lower side wall 13 of the lower groove in the cover groove respectively.
As shown in fig. 9-11, the sheet ring sealing device includes a sealing sheet group i, a sealing sheet group ii and a sealing cake 16, the sealing sheet group i and the sealing sheet group ii are respectively slidably connected in two grooves of the cover groove 10, the sealing sheet group i and the sealing sheet group ii both include a plurality of sealing sheets 14 which are stacked and gradually increased in length or gradually decreased in length, each sealing sheet 14 is provided with a strip-shaped hole 15 which is arched at both ends and rectangular in middle along the length direction, the sealing cake 16 is accommodated in the strip-shaped hole 15 of the shortest sealing sheet 14 in the sealing sheet group i and the sealing sheet group ii and can rotate, and the connecting rod 3 passes through the sealing cake 16 and can move axially.
As shown in fig. 10, closure panel set i comprises short to long closure panels 14a, 14b … …, closure panel 14n-1, closure panel 14 n; similarly, closure panel set II includes short to long closure panels 14a ', 14 b', … …, closure panel 14n '-1, and closure panel 14 n', as shown in FIG. 11.
The strip-shaped holes 15 on the plurality of closing sheets 14 are equal in width, the length of the strip-shaped holes is gradually increased or gradually reduced, and the gap between the lower cylinder cover opening 9 and the closing cake 16 is completely closed by the plurality of closing sheets 14.
As shown in fig. 6, the depth of both ends of the cover groove 10 is a, and the depth of one side surface is b. As shown in fig. 9, the strip-shaped hole 15 of each closure piece 14 has a length a 'from one end to the outside and a width b' from one side surface. a 'is 0.001-5mm smaller than a, b' is 0.001-5mm smaller than b, the width of the strip-shaped hole 15 on each sealing sheet 14 is equal and is 0.001-5mm smaller than the width of the lower cylinder cover opening 9, the length of the strip-shaped hole 15 in each sealing sheet is different, the length of the strip-shaped hole 15 of the first sealing sheet 14a is equal to 1.2-3 times of the diameter of the connecting rod 3 (to provide a space for sealing cakes), the length of the strip-shaped hole 15 of the second sealing sheet 14b is the most a longer than that of the strip-shaped hole 15 of the first sealing sheet 14a, the length of the strip-shaped hole 15 of the n-th sealing sheet 14n is the most a longer than that of the strip-shaped hole 15 of the n-1-th sealing sheet 14(n-1), and the lower cylinder cover opening 9 can be completely sealed until one end of each sealing sheet is close to one end of the lower cylinder cover opening 9. The length of the lower cylinder head opening at the distal crank end may be shorter than the length of the cylinder head opening at the proximal crank end
Figure BDA0001641825540000071
[ wherein D is the distance between two adjacent rectangular openings on the lower cylinder head, L is the length of the connecting rod, and r is the radius of the crank]. The number of the sealing sheets of the sealing sheet group at the far crank end is 0-6 less than that of the sealing sheets at the near crank end, and the sealing sheets 14 in the group are mutually shielded, so that the function of sealing the gap between the cylinder cover opening 9 and the sealing cake 16 is realized. The combination of each group of sealing pieces can be arranged from short to long and can also be arranged from long to short.
As shown in figures 12-13, the closed cake 16 is provided with a cylindrical hole 17 along the radial direction, the inner wall of the cylindrical hole 17 is provided with 2-5 ring grooves 18, a rod ring 34 is arranged in the ring groove 18, and the rod ring 34 is sleeved on the connecting rod 3. The rod body of the connecting rod 3 is cylindrical, and the connecting rod 3 can swing left and right in the slidable sealing piece 16 and can do linear reciprocating motion in the rod ring 34 in the sealing cake 16. The ring groove 18, the rod ring is similar to the piston ring groove, the piston ring, except that the piston ring outer surface is wear resistant and the rod ring inner surface is wear resistant.
As shown in figure 14, the closed cake 16 is internally provided with three mutually vertical cake substrate elastic layers 26, the surface of the closed cake 16 is provided with a cake substrate wear-resistant layer 27, the cake substrate elastic layers 26 are structurally characterized in that asbestos fibers (with broken copper wires or steel scraps) are arranged inside, copper sheets, steel sheets or carbon ink thin sheets and the like are wrapped outside, and the thickness of the closed cake 16 is 0.0001mm-0.2mm larger than the width of the closed sheet strip-shaped hole 15.
The connecting rod 3 swings, the sealing sheet group I and the sealing sheet group II slide left and right in the opening 9 of the lower cylinder cover along with the connecting rod 3, the sealing cake 16 can rotate left or right in the strip-shaped hole 15, and the connecting rod 3 can slide axially in the cylindrical hole 17, so that the connecting rod 3 can swing left and right and reciprocate axially in the sealing device on the lower cylinder cover 6.
The thickness of the lower cylinder cover 6 at the position of the lower cylinder cover 6 with the cover groove 10 is increased to 1-2 times of the original thickness, the cylinder diameter of the lower end of the cylinder corresponding to the arches at the two ends of the lower cylinder cover opening 9 and the diameter of the lower cylinder cover 6 are lengthened to 1-1.5 times of the original thickness, and the depth a of the two ends of the cover groove 10 is larger than the depth b of the two sides.
Two sets of closure flaps, one closure flap 14a and 14a 'of shortest length, are provided, and closure patties 16 are placed on closure flaps 14a and 14 a'In the strip-shaped hole 15, the diameter D of the sealing cake 16 is greater than the length of the shortest sealing piece strip-shaped hole 15, and the difference between the two is:
Figure BDA0001641825540000081
[DcakeThe diameter of the sealing cake when being put into the sealing sheet is D is the distance between two lower cylinder cover openings 9 of the double-layer groove]The contact part of the sealing sheet 14a and the sealing sheet 14 a' and the sealing cake 16 is of a concave spherical surface shape, so that the sealing degree and the wear resistance degree of the sealing cake 10 are increased. The sealing cake 16 is tightly attached to the sealing sheet 14a and the sealing sheet 14a ', the sealing cake rotates between the strip-shaped holes 15 of the sealing sheet 14a and the sealing sheet 14a ', the strip-shaped holes 15 of the sealing sheet 14a and the sealing sheet 14a ' play a role in fixing the upper position, the lower position, the left position and the right position of the sealing cake 16, and the two groups of sealing sheets in the groove 10 are covered to play a double-sealing role, so that the sealing effect is enhanced. The sealing sheet group I and the sealing sheet group II can slide left and right in the opening 9 of the lower cylinder cover, the sealing cake 16 can rotate left and right in the strip-shaped holes 15 of the sealing sheet group I and the sealing sheet group II, and the connecting rod 3 can reciprocate in the rod ring 34 in the sealing cake, so that the connecting rod 3 can reciprocate and swing left and right in the sealing device of the lower cylinder cover 6.
The lower cylinder cover 6 is provided with a lubricating oil path to the sealing device to provide lubrication for the sealing device. The closure strips 14 in closure strip group i and closure strip group ii can be arranged in a variety of ways, with the superimposed closure strips 14 being arranged in descending or ascending order of length.
The first arrangement mode is as follows: as shown in fig. 11, the sealing sheets 14 arranged from the upper side wall 11 of the upper groove in the cover groove to the middle partition plate 12 are arranged from short to long, and then the sealing sheets 14 arranged from the middle partition plate 12 to the lower side wall 13 of the lower groove in the cover groove are arranged from long to short.
The second arrangement mode: as shown in fig. 15, the sealing sheets 14 arranged from the upper side wall 11 of the upper groove in the cover groove to the middle partition plate 12 are arranged from long to short, and then the sealing sheets 14 arranged from the middle partition plate 12 to the lower side wall 13 of the lower groove in the cover groove are arranged from long to short, which is called an arrangement mode two in the present invention.
The third arrangement mode: as shown in fig. 16, the sealing sheets 14 distributed from the upper side wall 11 of the upper groove in the cover groove to the middle partition plate 12 are arranged from long to short, and then the sealing sheets 14 distributed from the middle partition plate 12 to the lower side wall 13 of the lower groove in the cover groove are arranged from short to long, which is called an arrangement mode three in the present invention.
The first cylinder a, the second cylinder B and the sub-cylinder C are all four-stroke two-cycle internal combustion engines. The upper cylinder cover 5 has components, the lower cylinder cover 6 is provided with a sealing device, the middle part of the lower cylinder cover 6 is provided with a lower cylinder cover opening 9 with two arched ends and a rectangular middle part, the inner wall of the lower cylinder cover opening 9 is provided with a double-layer groove, the thickness of the lower cylinder cover with the sealing device is increased to 1-2 times than other parts, the diameter of the lower end of the cylinder 1 corresponding to the arches at the two ends of the lower cylinder cover opening 9 and the diameter of the lower cylinder cover 6 are increased to 1-1.5 times than other parts, the depth a at the two ends of the cover groove 10 is larger than the depth b at the two sides, the connecting rod 3 and the lower cylinder cover 6 are sealed by a sheet ring sealing device, and four-stroke double circulation is carried out at the two ends of the piston.
The working principle of the invention is as follows:
the auxiliary cylinder C without consuming fuel is added between a first cylinder A and a second cylinder B consuming fuel, except no spark plug or oil nozzle, the rest structures of the auxiliary cylinder C are the same as those of the first cylinder A and the second cylinder B, the diameter of the auxiliary cylinder C can be increased to 1-34 times of that of the first cylinder A, three cylinders are connected to the same crank 4, one cylinder of the first cylinder A and the second cylinder B leads the stroke of the auxiliary cylinder C by 180 degrees, the other cylinder leads the stroke of the auxiliary cylinder C by 180 degrees, and the stroke of the first cylinder A and the stroke of the second cylinder B are different by 360 degrees. The exhaust valves of the first cylinder A and the second cylinder B are respectively communicated with the intake valve of the auxiliary cylinder C, under the condition that fuel is not supplied to the auxiliary cylinder C, the exhaust gas discharged by the first cylinder A and the second cylinder B is used for pushing the piston of the auxiliary cylinder C to do work, the auxiliary cylinder C only does work and does not consume fuel, and the three-cylinder combination or the multiple three-cylinder combination has high power density and high efficiency.
There are two types of four-stroke two-cycle modes: one is that the upper air chamber 7 is advanced by one stroke than the lower air chamber 8, which is called suction and discharge cycle; the other is that the upper chamber 7 lags the lower chamber 8 by one stroke, called the suction-pressure cycle. The invention adopts the same double-circulation combination, so that the first cylinder A and the second cylinder B work in the suction and exhaust circulation or the suction and pressure circulation, and the air chamber on one cylinder leads or lags two strokes than the air chamber on the other cylinder. And (3) respectively communicating exhaust valves of the first cylinder A and the second cylinder B with an intake valve of an auxiliary cylinder C, and performing double circulation in a mode that an upper air chamber of the auxiliary cylinder C performs work, a lower air chamber exhausts the air, an upper air chamber exhausts the air and the lower air chamber performs work.
The cycle process of the three-cylinder group that the first cylinder A and the second cylinder B work in the suction and exhaust double cycle is as follows:
in the first stroke, a piston of a first cylinder A moves upwards, an inlet valve 4aA of an upper air chamber of the first cylinder is closed, and an exhaust valve 5aA of the upper air chamber of the first cylinder is opened to exhaust; the inlet valve 4bA and the exhaust valve 5bA of the first cylinder lower air chamber are closed to do work; the piston of the auxiliary cylinder C descends, an exhaust valve 5aC of an upper air chamber of the auxiliary cylinder is closed, an intake valve 4aC of an upper air chamber of the auxiliary cylinder is opened to do work, an intake valve 4bC of a lower air chamber of the auxiliary cylinder is closed, an exhaust valve 5bC of a lower air chamber of the auxiliary cylinder is opened to exhaust, and at the moment, an auxiliary sub-throttle S1 of an upper air chamber of the first cylinder is opened, an auxiliary sub-throttle S2 of an upper air chamber of the second cylinder, an auxiliary sub-throttle S3 of a lower air chamber of the first cylinder and an auxiliary sub-throttle S4 of a; the piston of the second cylinder B moves upwards, the exhaust valve 5aB of the upper air chamber of the second cylinder and the intake valve 4aB of the upper air chamber of the second cylinder are closed and compressed; the second cylinder lower chamber exhaust valve 5bB is closed and the second cylinder lower chamber intake valve 4bB is opened to intake air as shown in fig. 1.
In the second stroke, the piston of the first cylinder A descends, the exhaust valve 5aA of the upper air chamber of the first cylinder is closed, and the intake valve 4aA of the upper air chamber of the first cylinder is opened to suck air; the inlet valve 4bA of the first cylinder lower air chamber is closed, and the exhaust valve 5bA of the first cylinder lower air chamber is opened to exhaust; the piston of the auxiliary cylinder C moves upwards, an inlet valve 4aC of an upper air chamber of the auxiliary cylinder is closed, and an exhaust valve 5aC of the upper air chamber of the auxiliary cylinder is opened to exhaust; 5bC of an exhaust valve of the lower air chamber of the auxiliary cylinder is closed, 4bC of an intake valve of the lower air chamber of the auxiliary cylinder is opened to apply work, S3 of a sub-throttle valve of the lower air chamber of the first cylinder is opened, S1 of an upper air chamber of the first cylinder, S2 of an upper air chamber of the second cylinder and S4 of a sub-throttle valve of the lower air chamber of the second cylinder are closed; a piston of the second cylinder B descends, an inlet valve 4aB of an upper air chamber of the second cylinder and an exhaust valve 5aB of the upper air chamber of the second cylinder are closed, and work is done; and the intake valve 4bB of the second cylinder lower air chamber and the exhaust valve 5bB of the second cylinder lower air chamber are closed and compressed, as shown in FIG. 2.
In the third stroke, the piston of the first cylinder A moves upwards, the inlet valve 4aA of the upper air chamber of the first cylinder and the exhaust valve 5aA of the upper air chamber of the first cylinder are closed, and compression is carried out; the air inlet valve 5bA of the first cylinder lower air chamber is closed, and the air inlet valve 4bA of the first cylinder lower air chamber is opened to suck air; a piston of the auxiliary cylinder C descends, an exhaust valve 5aC of an upper air chamber of the auxiliary cylinder is closed, and an intake valve 4aC of the upper air chamber of the auxiliary cylinder is opened to apply work; an inlet valve 4bC of the lower air chamber of the auxiliary cylinder is closed, an exhaust valve 5bC of the lower air chamber of the auxiliary cylinder is opened, and exhaust is carried out; a piston of the second cylinder B moves upwards, an inlet valve 4aB of an upper air chamber of the second cylinder is closed, and an exhaust valve 5aB of the upper air chamber of the second cylinder is opened to exhaust; an air inlet valve 4bB of a lower air chamber of the second cylinder and an exhaust valve 5bB of the lower air chamber of the second cylinder are closed to do work; the second cylinder upper air chamber sub throttle valve S2 is opened and the first cylinder upper air chamber sub throttle valve S1, the first cylinder lower air chamber sub throttle valve S3, and the second cylinder lower air chamber sub throttle valve S4 are closed as shown in fig. 3.
Fourthly, a piston of the first cylinder A descends, an inlet valve 4aA of an upper air chamber of the first cylinder and an exhaust valve 5aA of the upper air chamber of the first cylinder are closed, and work is done; the inlet valve 4bA of the first cylinder lower air chamber and the inlet valve 5bA of the first cylinder lower air chamber are closed and compressed; the piston of the auxiliary cylinder C moves upwards, the inlet valve 4aC of the upper air chamber of the auxiliary cylinder is closed, and the exhaust valve 5aC of the upper air chamber of the auxiliary cylinder is opened to exhaust; the exhaust valve 5bC of the lower air chamber of the auxiliary cylinder is closed, and the intake valve 4bC of the lower air chamber of the auxiliary cylinder is opened to do work; a piston of the second cylinder B descends, an exhaust valve 5aB of an upper air chamber of the second cylinder is closed, and an intake valve 4aB of the upper air chamber of the second cylinder is opened for air suction; the air inlet valve 4bB of the lower air chamber of the second cylinder is closed, and the exhaust valve 5bB of the lower air chamber of the second cylinder is opened for exhausting; the second cylinder lower air chamber sub throttle valve S4 is opened and the first cylinder upper air chamber sub throttle valve S1, the second cylinder upper air chamber sub throttle valve S2 and the first cylinder lower air chamber sub throttle valve S3 are closed as shown in fig. 4.
The switching states of the first cylinder upper air chamber positive sub-throttle valve K1 and the first cylinder upper air chamber auxiliary sub-throttle valve S1 are opposite, the switching states of the second cylinder upper air chamber positive sub-throttle valve K2 and the second cylinder upper air chamber auxiliary sub-throttle valve S2 are opposite, the switching states of the first cylinder lower air chamber positive sub-throttle valve K3 and the first cylinder lower air chamber auxiliary sub-throttle valve S3 are opposite, and the switching states of the second cylinder lower air chamber auxiliary sub-throttle valve K4 and the second cylinder lower air chamber auxiliary sub-throttle valve S4 are opposite. The opening or closing actions of the cylinder valves of which the main branch valve and the auxiliary branch valve are communicated with the air passage can act simultaneously, can act in advance and can act in a delayed mode.
Three-cylinder group working cycle meter when first cylinder A and second cylinder B both work in suction and exhaust cycle
Figure BDA0001641825540000111
The exhaust valves of the first cylinder A and the second cylinder B are respectively communicated with the auxiliary cylinder intake valve, and the combination of three cylinders or a plurality of cylinders forms a multi-cylinder double-circulation four-stroke internal combustion engine with high power density and high efficiency.
Power changing: when power needs to be increased, a water spray nozzle and related water supply parts are added on the cylinder cover of the auxiliary cylinder C, and water or other easily-evaporated liquid is sprayed to the air inlet pipe or the cylinder of the auxiliary cylinder C or sprayed into the cylinder at the initial stage of working of the auxiliary cylinder C, so that the water or other easily-evaporated liquid is vaporized and expanded in the waste gas of the auxiliary cylinder to work, and the variable power operation is realized.
Compared with single-cycle multiple lower cylinder covers, the multi-cylinder four-stroke double-cycle internal combustion engine with the plate ring closing device has the advantages that the volume is only increased by less than one tenth of that of the original engine, the power can be increased by about 80 percent, the power density is increased by about 73 percent, the auxiliary cylinder only works, fuel is not consumed, the efficiency of the internal combustion engine is greatly improved, and the purposes of greatly improving the power density and the efficiency are achieved.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (6)

1. A multi-cylinder high-power-density high-efficiency dual-cycle internal combustion engine is characterized by comprising a first cylinder (A), a second cylinder (B) and an auxiliary cylinder (C) which are all four-stroke dual-cycle, the first cylinder (A), the second cylinder (B) and the auxiliary cylinder (C) comprise an upper air chamber (7) and a lower air chamber (8) which are positioned at two sides of the piston (2), and the pistons (2) are connected with the crank (4) through the connecting rods (3), a first cylinder upper air chamber exhaust valve (5aA) of the first cylinder (A) and a second cylinder upper air chamber exhaust valve (5aB) of the second cylinder (B) are communicated with an auxiliary cylinder upper air chamber intake valve (4aC) of the auxiliary cylinder (C), a first cylinder lower air chamber exhaust valve (5bA) of the first cylinder (A) and a second cylinder lower air chamber exhaust valve (5bB) of the second cylinder (B) are communicated with an auxiliary cylinder lower air chamber intake valve (4bC) of the auxiliary cylinder (C);
the exhaust valve (5aA) of the upper air chamber of the first air cylinder is provided with an exhaust branch channel of the upper air chamber of the first air cylinder and an air supply branch channel of the upper air chamber of the first air cylinder, the inlet valve (4aC) of the upper air chamber of the auxiliary air cylinder is communicated with the air supply branch channel of the upper air chamber of the first air cylinder, and the exhaust branch channel of the upper air chamber of the first air cylinder and the air supply branch channel of the upper air chamber of the first air cylinder are respectively provided with a positive branch throttle valve (K) of the upper air chamber of the first air cylinder1) And a sub-branch throttle valve (S) of an upper air chamber of the first cylinder1) (ii) a The exhaust valve (5bA) of the lower air chamber of the first air cylinder is provided with an exhaust branch channel of the lower air chamber of the first air cylinder and an air supply branch channel of the lower air chamber of the first air cylinder, the inlet valve (4bC) of the lower air chamber of the auxiliary cylinder is communicated with the air supply branch channel of the lower air chamber of the first air cylinder, and the exhaust branch channel of the lower air chamber of the first air cylinder and the air supply branch channel of the lower air chamber of the first air cylinder are respectively provided with a positive branch throttle (K) of the lower air chamber of the first air cylinder3) And a sub-branch throttle valve (S) of the lower air chamber of the first cylinder3)；
The exhaust valve (5aB) of the upper air chamber of the second cylinder is provided with an upper air chamber exhaust branch channel of the second cylinder and an upper air chamber air supply branch channel of the second cylinder, the inlet valve (4aC) of the upper air chamber of the auxiliary cylinder is communicated with the upper air chamber air supply branch channel of the second cylinder, and the exhaust branch channel of the upper air chamber of the second cylinder and the upper air chamber air supply branch channel of the second cylinder are respectively provided with a positive branch throttle valve (K) of the upper air chamber of the second cylinder2) And a sub-partial throttle valve (S) of an upper air chamber of the second cylinder2) (ii) a The exhaust valve (5bB) of the lower air chamber of the second cylinder is provided with an exhaust branch channel of the lower air chamber of the second cylinder and an air supply branch channel of the lower air chamber of the second cylinder, and the lower air chamber of the auxiliary cylinder is provided with an air inletThe air valve (4bC) is communicated with the air supply branch channel of the lower air chamber of the second cylinder, and the air supply branch channel of the lower air chamber of the second cylinder are respectively provided with a positive sub throttle valve (K) of the lower air chamber of the second cylinder4) And a sub-partial throttle valve (S) of a lower air chamber of the second cylinder4)；
One end of the connecting rod (3) is hinged with the piston (2), the other end of the connecting rod penetrates through a lower cylinder cover (6) to be connected with the crank (4), a lower cylinder cover opening (9) with two arched ends and a rectangular middle part is arranged on the lower cylinder cover (6), and a sealing device for sealing a gap between the connecting rod (3) and the lower cylinder cover (6) is arranged in the lower cylinder cover opening (9);
the inner wall of the lower cylinder cover opening (9) is provided with a cover groove (10) with a double-layer structure, the sealing device comprises a sealing sheet group I, a sealing sheet group II and sealing cakes (16), the sealing sheet group I and the sealing sheet group II are respectively connected in two layers of grooves of the cover groove (10) in a sliding mode, the sealing sheet group I and the sealing sheet group II respectively comprise a plurality of sealing sheets (14) which are overlapped and gradually increased in length or gradually decreased in length, strip-shaped holes (15) are formed in the sealing sheets (14) along the length direction, the sealing cakes (16) are contained in the strip-shaped holes (15) of the shortest sealing sheets (14) in the sealing sheet group I and the sealing sheet group II and can rotate, and the connecting rod (3) penetrates through the sealing cakes (16) and can move along the axial direction.
2. A multi-cylinder high power density high efficiency dual cycle internal combustion engine as in claim 1 wherein said first cylinder (a) and said second cylinder (B) are one or more in parallel arrangement, each of said first cylinder (a) and said second cylinder (B) having intake and exhaust valves and spark plugs or oil jets on its upper and lower head, and said auxiliary cylinder (C) having intake and exhaust valves on its upper and lower head.
3. A multi-cylinder high power density high efficiency dual cycle internal combustion engine as defined in claim 1 wherein the first cylinder (a) is stroke-advanced 180 degrees relative to the secondary cylinder (C), the second cylinder (B) is stroke-retarded 180 degrees relative to the secondary cylinder (C), and the first and second cylinders (a, B) are stroke-retarded 360 degrees.
4. A multi-cylinder high power density high efficiency dual cycle internal combustion engine as defined in claim 1 wherein the first and second cylinders (a) and (B) have the same bore diameter, the sub-cylinder (C) has a bore diameter 1-34 times the bore diameter of the first cylinder (a), and the sub-cylinder (C) has cylinder, piston and connecting rod component masses 0.01-3.14 times the mass of the corresponding components of the first cylinder (a).
5. A multicylinder high power density high efficiency dual cycle internal combustion engine as in claim 1, wherein the strip shaped holes (15) on the plurality of closing flaps (14) are of equal width and gradually increase or decrease in length, the gap between the lower head opening (9) and the connecting rod (3) being completely closed by the rod ring (34), the closing disc (16) and the plurality of closing flaps (14).
6. A multicylinder high power density high efficiency dual cycle internal combustion engine as in claim 1, wherein said closing cake (16) is provided with a cylindrical bore (17) in a radial direction, said cylindrical bore (17) being provided with a plurality of ring grooves (18) distributed in an axial direction, each ring groove (18) being provided with a rod ring (34), said connecting rod (3) passing through said cylindrical bore (17) and being sealed by a rod ring (34); three cake substrate elastic layers (26) which are vertical to each other are arranged inside the closed cake (16), and a cake substrate wear-resistant layer (27) is arranged on the outer surface of the closed cake (16).
CN201810384373.1A 2017-07-24 2018-04-26 Multicylinder high power density high efficiency dual cycle internal combustion engine Active CN109252955B (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN2017106454675 2017-07-24
CN201710645467 2017-07-24
CN201711305119 2017-12-02
CN201711305119X 2017-12-02
CN2018100254966 2018-01-03
CN201810025496 2018-01-03
CN2018101937382 2018-02-27
CN201810193738 2018-02-27

Publications (2)

Publication Number Publication Date
CN109252955A CN109252955A (en) 2019-01-22
CN109252955B true CN109252955B (en) 2020-04-14

Family

ID=65050700

Family Applications (4)

Application Number Title Priority Date Filing Date
CN201810384373.1A Active CN109252955B (en) 2017-07-24 2018-04-26 Multicylinder high power density high efficiency dual cycle internal combustion engine
CN201810384171.7A Active CN109252952B (en) 2017-07-24 2018-04-26 Four-stroke two-cycle internal combustion engine with high power density
CN201810384169.XA Active CN109252940B (en) 2017-07-24 2018-04-26 Two-stroke two-cycle internal combustion engine with scavenging pump
CN201810384051.7A Active CN109252943B (en) 2017-07-24 2018-04-26 High efficiency multi-cylinder combines internal combustion engine

Family Applications After (3)

Application Number Title Priority Date Filing Date
CN201810384171.7A Active CN109252952B (en) 2017-07-24 2018-04-26 Four-stroke two-cycle internal combustion engine with high power density
CN201810384169.XA Active CN109252940B (en) 2017-07-24 2018-04-26 Two-stroke two-cycle internal combustion engine with scavenging pump
CN201810384051.7A Active CN109252943B (en) 2017-07-24 2018-04-26 High efficiency multi-cylinder combines internal combustion engine

Country Status (1)

Country Link
CN (4) CN109252955B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111105711B (en) * 2019-11-28 2021-05-18 联想(北京)有限公司 Electronic equipment
CN111577449B (en) * 2020-05-07 2024-04-02 李忠福 Auxiliary cylinder of internal combustion engine capable of pushing piston in two directions
CN113107662A (en) * 2021-05-08 2021-07-13 永康市茂金园林机械有限公司 Cylinder piston unit for stratified scavenging two-stroke engine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813395A (en) * 1987-04-27 1989-03-21 Allied Corporation Two-cycle engine and method of operation
CN1045289A (en) * 1989-03-02 1990-09-12 朱云峰 Two-direction four stroke engine
CN1048078A (en) * 1989-06-16 1990-12-26 罗汉明 Lateral link rod type internal combustion engine
FR2744764B1 (en) * 1996-02-12 1998-04-17 Inst Francais Du Petrole TWO STROKE MOTOR WITH A MEANS OF CONTROL OF THE MOVEMENT OF THE VALVE
CA2464227C (en) * 2004-03-31 2009-02-03 Jean-Louis Major Double action piston assembly
CN1793626A (en) * 2005-12-19 2006-06-28 张永志 One cylinder two-piston opposed internal-combustion engine
WO2009079687A1 (en) * 2007-12-24 2009-07-02 Peter Charles Cheeseman A four-stroke free piston internal combustion engine
DE102010020325B4 (en) * 2010-05-12 2012-09-06 Christian Daublebsky von Eichhain Heat engine
JP5780888B2 (en) * 2010-12-13 2015-09-16 株式会社やまびこ 2-cycle engine
CN202049665U (en) * 2010-12-15 2011-11-23 天津启星动力科技有限公司 Steam engine model
JP5933217B2 (en) * 2011-10-12 2016-06-08 株式会社Ihi Two-cycle engine and method of lubricating two-cycle engine
CN203296944U (en) * 2013-03-11 2013-11-20 林松青 Air-return-type air cylinder
CN103925075A (en) * 2014-05-06 2014-07-16 韩鑫岗 Multi-cycle internal combustion engine

Also Published As

Publication number Publication date
CN109252940A (en) 2019-01-22
CN109252952B (en) 2020-04-14
CN109252955A (en) 2019-01-22
CN109252943B (en) 2019-11-19
CN109252943A (en) 2019-01-22
CN109252952A (en) 2019-01-22
CN109252940B (en) 2020-06-09

Similar Documents

Publication Publication Date Title
CN109252955B (en) Multicylinder high power density high efficiency dual cycle internal combustion engine
TWM557302U (en) High efficiency internal combustion engine
CN104500211A (en) Two-stroke stratified scavenging engine
CN202031713U (en) Engine with closed cylinder port
CN202001099U (en) Two-stroke engine for scavenging by adopting air pilot mode
CN104234818A (en) Two-stroke internal combustion engine
CN204099043U (en) A kind of two stroke IC engine
CN208281046U (en) A kind of valve component, piston shaft assembly and rotary combustion engine
CN203022871U (en) Two-stroke stratified scavenging engine
CN208734431U (en) A kind of inner cylinder body and rotary combustion engine
CN208281048U (en) A kind of rotary combustion engine
CN208281052U (en) A kind of outer cylinder body and rotary combustion engine
CN107355308B (en) A kind of piston structure of built-in valve
CN201358834Y (en) Internal supercharged four-stroke engine
CN204804963U (en) Horizontal opposition piston of two cycle, opposition cylinder engine cylinder jacket
CN207673454U (en) A kind of boosting type hollow piston for automobile engine
CN108468589A (en) A kind of valve component, piston shaft assembly and rotary combustion engine
CN105422265B (en) A kind of five cylinder Integral composite engine cylinder-bodies
CN219910970U (en) Two-stroke engine with scavenging passage having flow-limiting structure
US11578649B2 (en) Internal combustion engine with charging system
CN207513776U (en) The structure of power needed for compressor set is capable of providing in V-type engine
CN208281051U (en) A kind of set square component, piston assembly and rotary combustion engine
CN208416697U (en) A kind of valve component and rotary combustion engine
CN208416696U (en) A kind of screw-casing component and rotary combustion engine
CN208734430U (en) A kind of rotary combustion engine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant