CN208749444U - Cylinder and piston connecting rod unit - Google Patents

Abstract

A kind of cylinder and piston connecting rod unit, cylinder is arc-shaped, the interior air cavity of piston is connected to piston head inner cavity, there is air inlet duct on piston head, its section is greater than two side skirts of piston head on piston head, there is venthole on the outer convex position of latter side skirt, which is connected to the outer air cavity of annular of piston, there is the hose coupling for the introducing air distribution system exhaust gas being connected to outer air cavity on piston rear end；Crankshaft is arranged in crankcase along crankcase axial line, every group of two cylinders are arranged in crankcase in a manner of central symmetry, and multiple groups cylinder is arranged along crankcase direction of axis line, the connection type of every group of cylinder and crankshaft are as follows: rear end of the bent ring both ends respectively with two cylinders of group connects firmly, small end is hinged in the middle part of Qu Huan, the hole of connecting rod is connected on the bearing on crank arm, and connecting rod lower end is sleeved on the bearing of asessory shaft.The utility model has engine small in size, and the thermal efficiency is high, forms hermetic seal between piston head and cylinder block, it is big to solve the problems, such as that existing piston ring packing is worn.

Description

Cylinder and piston connecting rod unit

Technical field

The utility model relates to piston engine components, it is particularly suitable for reducing engine space, increases defeated Power out, and reduce the piston engine cylinder and piston rod part of the abrasion of piston ring and cylinder wall.

Background technique

Internal combustion engine has obtained sufficient development and improvement, especially Otto and has ground in 1876 since the sixties in 19th century The first reciprocating, the horizontal, single cylinder, quartastroke engine of system, are all highest in power at that time and the thermal efficiency.Now, past Compound engine is widely used in automobile industry, because reciprocating engine has discharge dirty compared to rotary engine Contaminate it is small, the advantages that high combustion efficiency.

But with the development of science and technology, in automobile industry, people's increasingly demand is more efficient, the less hair of occupied space Motivation, while not increasing or not increasing substantially its oil consumption and discharge.Also, the wear problem between piston and cylinder wall can not Ignore because the abrasion of piston ring fall off it is stuck during will lead to engine operation.

Based on this, there is an urgent need to propose a kind of cylinder and piston connecting rod unit, with solve available engine occupy it is empty Between big problem, and improve compression ratio, while reducing the abrasion of piston ring, therefore develop the practical O10 engine air of the utility model Cylinder and piston connecting rod unit.

Utility model content

The purpose of this utility model is to provide a kind of cylinder and piston connecting rod units, are accounted for solving available engine With the big problem in space, and compression ratio is improved, while reducing the abrasion of piston ring.

To achieve the goals above, the utility model adopts the following technical solution: a kind of cylinder and piston rod Group, including crankshaft, cylinder is by cylinder block and is placed in the intracorporal piston of cylinder and forms, the air cylinder structure are as follows: arc-shaped piston There is piston head in front end, has former and later two sections to be greater than the side skirt of piston head on piston head, and piston head inner cavity forms a gas chamber, Piston rear end has piston arm and hose coupling, and the outer gas along its axial line interior air cavity extended and annular is provided in piston Chamber, interior air cavity form exhaust circular hole in piston rear end face, and outer gas cavity rear end be connected to hose coupling, outer air cavity front end with positioned at work Venthole connection on chock plug, interior air cavity are connected to piston head inner cavity, and the air inlet duct being connected to its inner cavity is provided on piston head；It is bent Axle box is that section is round or octagon cylinder, and the crankshaft is parallel to and is eccentric in the cylinder axial line and rotationally sets It sets in crankcase, straight pin is fixed on the crank arm of crankshaft, bearing is installed on straight pin；Above-mentioned two cylinder is one Group is arranged in crankcase by central symmetry mode, which is located at perpendicular to the same of crankcase cylinder axial line On a circumference, the center of circle of the circumference is located on crankcase cylinder axial line；It is provided in crankcase along its cylinder direction of axis line Multiple groups cylinder, every group of cylinder are connect in the following manner with crankshaft: the work through bolt Yu two cylinders of group respectively of the both ends of Qu Huan Arm connection is filled in, small end is hinged or is fixed on the link pin in the middle part of Qu Huan, and asessory shaft is fixed along crankcase cylinder axial line On the forward and backward end plate of crankcase cylinder, the fluting of strip-shaped hole is connected to the bearing of the straight pin of the crank arm of crankshaft on connecting rod On, the aperture on connecting rod lower end is sleeved on the bearing of asessory shaft；Worm gear is arranged outside crankcase, for receiving air distribution system The worm gear adapter tube B for carrying out exhaust gas is connected to worm gear import, and the worm gear adapter tube A in worm gear outlet is connected to multiple appendixs, every gas transmission Pipe is connected to the hose coupling of a cylinder.

Air inlet duct on the piston head is two, is quadrangle air inlet duct.

Venthole on the piston head is 6, and is uniformly distributed.

Also there is support frame, support frame is mounted on crankshaft chamber interior wall；One cylinder block is fixed on a support frame On.

The cylinder is five groups；There are four partition in the crankcase, crankcase is divided into five and includes by four partitions The space of cylinder.

O10 cylinder and piston connecting rod unit, comprising:

Crankcase, a series of assembly foundation of components such as cylinder, crankshaft, asessory shaft, partition；

Cylinder block, is arranged successively totally by five groups, and every group of two cylinder component parts are round, is mounted in crankcase, comprising on cylinder All classical components, such as air inlet, gas vent, cylinder head etc.；

Qu Huan is a semi-ring, connects the end of two pistons in every group, a straight pin is stretched out on semi-ring；

Connecting rod, upper end is hingedly on the straight pin of bent ring stretching, and lower end is connected on asessory shaft by bearing, thereon close to auxiliary Helping at axis one end has a fluting；

Crankshaft, connecting rod fluting are connected on the bearing by crankshaft straight pin, which is mounted between two crank arms On straight pin.Maneton is fixed on crankcase two sides and partition by bearing；

Asessory shaft runs through entire crankcase,

Piston body and its classical accessory, venthole (exhaust circular hole) are distributed on piston end circumference, piston end one Curved bar, bar diameter is slightly thin, there is exhaust circular hole thereon；

Worm gear is mounted on outside crankcase, is connected with the exhaust pipe in air distribution system；

Venthole is distributed on two side skirt medial surface circumference of piston crown；

Link pin, for connecting connecting rod and Qu Huan；

Bearing；

Worm gear adapter tube, connects air distribution system and worm gear by totally two；

It is vented circular hole, is distributed in piston end,

Hose coupling, inside use thermoplastic rubber,

Appendix,

Quadrangle air inlet duct, is distributed in piston crown.

Further, there are four partitions built in the crankcase is divided into five spaces comprising cylinder block for entire cabinet (one, each space cylinder).

Further, there are three support frames for the cylinder block circumference, are separately mounted on crankshaft chamber interior wall；Cylinder bottom piston Connecting rod import and export is equipped with fillet.

Further, there are two identical profiled holes for the every one end the Qu Huan, connect with two piston ends；

The straight pin is stretched out from crankshaft, and the diameter of end is greater than the diameter of neck and bottom end.

Further, there is a pin hole in described connecting rod one end, cooperates with above-mentioned straight pin, and the other end has a circular hole；

Above-mentioned circular hole and asessory shaft pass through bearing fit.

Further, using long axis as center axis dimidiation, two parts corresponding region is equipped with screw hole, utilizes spiral shell the connecting rod Bolt, nut split.

Further, the internal piston is divided into inside and outside two air cavitys, and the side skirt to concave, shape are stretched out in piston crown both ends At a gas chamber；

The outer air cavity of above-mentioned piston end is connected with worm gear adapter tube, and is equipped with two in piston head circumference and irises out stomata, every circle six It is a；

Above-mentioned two iris out stomata difference spaced set on the side skirt circumference of piston body both ends；

Above-mentioned piston air chamber bottom is connected there are two big quadrangle air inlet duct with interior air cavity；Interior air cavity extends to piston End is connected with the exhaust circular hole of piston end.

Further, it is equipped with a hole on above-mentioned Qu Huan, link pin is inserted into, and is fixed with nut；Link pin passes through The slotted engagement of bearing and connecting rod one end, slides it in slot.

Further, the maneton of the crankshaft is cooperated by bearing and partition and two wall opening of crankcase；

Fixed asessory shaft in aforementioned barriers, and bearing is equipped with fillet；Above-mentioned piston end piston arm bottom outstanding It also is provided with fillet.

Further, appendix outside in crankcase is distributed, by air distribution system by being opening on crankcase Into crankcase, it is connected with the hose coupling of piston end.

It should be noted that cylinder and piston connecting rod unit further include other details, but these details are practical with this Novel novelty is substantially unrelated.Therefore, in the utility model unmentioned details be common reciprocating internal combustion engine classics Design.

Compared with prior art, the utility model have the advantages that following features and:

The O10 engine that the utility model is addressed, including crankcase, cylinder block, Qu Huan, connecting rod, crankshaft, asessory shaft are living Plug and its classical accessory, worm gear machine, venthole, link pin, bearing, worm gear adapter tube, hose coupling, appendix.The utility model Cylinder block use circular design, and by crankshaft assembly among circular cylinder, relative to other cylinder arrangement modes, such as V-type, In-line type etc., the design reduces the occupied spaces of the components such as cylinder block and crankshaft, and can increase the stroke of piston.Therefore this Sample can increase accordingly output power, improve the fuel factor of engine.Secondly, the turbine of the utility model, utilizes a part Engine high-temperature high pressure exhaust gas operates turbine, and outside air is sucked and is pressurized, and enters piston by turbine adapter tube, from work The venthole of plug excludes, and can form one layer of high pressure air cushion in the gas chamber of piston side circumference, can not only reduce piston and cylinder The abrasion of wall can also utilize its plenum chamber, the gas of sealed combustion chamber, while can also take the heat of some pistons out of, Reduce the use of machine oil.The utility model design is simple exquisite, at low cost, can effectively reduce engine size, increase it Efficiency and the service life for extending its piston and cylinder.

The utility model is skillfully constructed, structure novel, has engine small in size, between piston head and cylinder block Hermetic seal is formed, solves that existing piston ring packing abrasion is big, service life short problem.

Detailed description of the invention

Fig. 1 is the isometric side view of this engine crankcase；

Fig. 2 is the piston cross-sectional view of (O10) cylinder and piston connecting rod unit；

Fig. 3 is the A-A cross-sectional view of Fig. 2；

Fig. 4 is the schematic diagram of O10 cylinder and piston connecting rod unit in the utility model；

Fig. 5 is the crankshaft schematic diagram of O10 cylinder and piston connecting rod unit in the utility model；

Fig. 6 is the perspective view of another view directions of crankcase；

Fig. 7 is that the piston and inblock cylinder of O10 cylinder and piston connecting rod unit in the utility model list intention.

Wherein, 1- crankcase, 2- cylinder block, 3- song ring, 4- connecting rod, 5- crankshaft, 6- asessory shaft, 7- piston (and its it is classical Accessory), 8- worm gear, 9- venthole, 10- link pin, 11- bearing, 12- worm gear adapter tube A, 13- worm gear adapter tube B, 14- exhaust circle Hole, 15- bolt, 16- nut, 17- partition, 18-(quadrangle) air inlet duct, the outer air cavity of 19-, air cavity in 20-, 21- side skirt, 22- Hose coupling, 23- appendix, piston head -24, air distribution system -25, crank arm -26, straight pin -27, piston arm -28 are special-shaped Hole -29, (connecting rod) fluting -30.

Specific embodiment

Fig. 1, Fig. 2, Fig. 3 are shown, a kind of cylinder and piston connecting rod unit, including crankshaft, and cylinder is by cylinder block and sets In the intracorporal piston composition of cylinder, the air cylinder structure are as follows: there is piston head 24 in arc-shaped 7 front end of piston, has on piston head 24 Former and later two sections are greater than the side skirt 21 of piston head 24, and 24 inner cavity of piston head forms a gas chamber, and there is piston arm in 7 rear end of piston 28 and hose coupling 22, the outer air cavity 19 along its axial line interior air cavity 20 extended and annular, interior gas are provided in piston 7 Chamber 20 forms exhaust circular hole 14 in 7 rear end face of piston, and outer 19 rear end of air cavity is connected to hose coupling 22, outer 19 front end of air cavity and position It is connected in the venthole 9 on piston head 24, interior air cavity 20 is connected to 24 inner cavity of piston head, is provided on piston head 24 and is connected with its inner cavity Logical air inlet duct 18；Crankcase 1 is that section is round or octagon cylinder, and the crankshaft 5 is parallel to and is eccentric in the cylinder Body axial line is rotatably arranged in crankcase 1, and straight pin 27 is fixed on the crank arm 26 of crankshaft 5, is installed on straight pin There is bearing 11；Above-mentioned two cylinder is one group, is arranged in crankcase by central symmetry mode, which is located at vertical In on the same circumference of crankcase cylinder axial line, the center of circle of the circumference is located on crankcase cylinder axial line；In crankcase 1 Its cylinder direction of axis line is provided with multiple groups cylinder, every group of cylinder is connect in the following manner with crankshaft 5: the both ends of Qu Huan 3 point It is not connect through bolt 15 with the piston arm 28 of two cylinders of group, 4 upper end of connecting rod is hinged or is fixed on the link pin at bent 3 middle part of ring On 10, asessory shaft 6 is along the forward and backward end plate that 1 cylinder axial line of crankcase is fixed on crankcase cylinder, strip-shaped hole on connecting rod 4 Fluting 30 is connected on the bearing 11 of the straight pin 27 of the crank arm of crankshaft 5, and the aperture on connecting rod lower end is sleeved on asessory shaft 6 On bearing；Worm gear 8 is arranged outside crankcase 1, and the worm gear adapter tube B13 that exhaust gas is carried out for receiving air distribution system 25 is connected to worm gear 8 Import, the worm gear adapter tube A12 that worm gear exports are connected to multiple appendixs 23, and the hose that every appendix is connected to a cylinder connects First 22.

Two side skirts (section is circle) of piston head are slidably matched with cylinder block formation.In venthole Fig. 3 on rear side skirt Positioned at its right side, the venthole (in Fig. 3) on the skirt of front side is located at its left side, i.e., the venthole of two side skirts is located at the interior of the two Side.

Air inlet duct 18 on piston head 24 is two, is quadrangle air inlet duct.

Venthole on piston head 24 is 6, and is uniformly distributed.

Setting multiple groups partition 17 in crankcase 1, the vibration of crankshaft 5 and asessory shaft 6 when the purpose is to reduce engine operation, Each cylinder block 2 is separated simultaneously, reduces influencing each other between it；Above-mentioned crankshaft 5 passes through bearing 11 and partition 17 and song 1 liang of wall cooperation of axle box, the purpose is to keep crank rotation smooth.

24 both ends outwardly convex of piston head, and draw close slightly inward, as side skirt 21, the purpose is to form gas chamber；Piston End is cased with hose coupling 22, and the purpose is to the air for sucking worm gear 8 to enter air cavity 19 outside piston by appendix 23, in gas Air cushion is formed in room；The piston head 24 of piston body and its classical accessory 7 has two to iris out stomata 9, these ventholes 9 are outer with piston Air cavity 19 is connected；Two iris out 9 centre of stomata, and there are two quadrangle air inlet ducts 18, are connected with the interior air cavity 20 of piston, interior air cavity 20 It extends to piston end to drain from exhaust circular hole 14, the purpose is to extra gas is discharged.

Bent ring 3 passes through profiled holes by two groups of 15 nuts 16 of bolt with the piston arm 28 in piston body and its classical accessory 7 29 is fixed, and the purpose is to prevent piston 7 from relatively moving with bent ring 3；Link pin 10, this connecting rod are inserted into above-mentioned song 3 one hole of ring Pin 10 is cylindrical body, and end diameter is slightly larger, is carried out with connecting rod 4 by bearing 11, and be fixed using nut 16 and bent ring 3.

Connecting rod 4 is by 11 sets of bearing on asessory shaft 6；Straight pin 27 and connecting rod fluting 30 between the crank arm 26 of crankshaft 5 Pass through bearing fit.The purpose is to form rocker device, make the smooth operating of crankshaft 5.

The exhaust gas that worm gear 8 collects air distribution system 25 is inputted by worm gear adapter tube B 13 drives worm gear to rotate draw air, Enter piston by worm gear adapter tube A 12.

Appendix 23 is connected with air distribution system 25 and the hose coupling of piston end 22, and the purpose is to will be collected by worm gear 8 Air through air distribution system 25 be sent into piston.

Also there is support frame, support frame is mounted on crankshaft chamber interior wall；One cylinder block 2 is fixed on a support frame On.

Cylinder is five groups；There are four partition in the crankcase 1, crankcase is divided into five and includes cylinder by four partitions Space.

Fig. 6 is shown, and 10 appendixs are mounted on outside crankcase, the hose of the piston of each appendix and a cylinder Connector 22 connect, for the piston outer air cavity input by air distribution system come exhaust gas, the exhaust gas through outer air cavity (referring to Fig. 3), out It is exuberant between the inside and outside side skirt of piston head after stomata 9, play the role of hermetic seal, extra exhaust gas is interior via air inlet duct 18 Air cavity 20 and exhaust circular hole 14(are referring to fig. 2) it discharges.

The utility model has innovatively used the cylinder of circular arrangement, and crankshaft etc. is placed in the center of the circle of cylinder composition Place, saves space, can have more spaces in this way to increase piston stroke, improve engine efficiency.Secondly, this is practical new The piston of type is different from conventional piston, using the exhaust gas driven worm gear of cylinder sucking air formation air cushion as lubrication mechanism, And excessive gas is discharged using exhaust system, to reduce the influence caused by combustion chamber gases of gas indoor gas, meanwhile, this part Air can take away the partial heat of piston, can reduce the use of machine oil in this way, extend the service life of piston and cylinder.This is practical New design is exquisite, and manufacturing cost and maintenance costs are low, is suitable for improving, develop and promoting in automobile industry later.

Described above is only the preferred embodiment of the utility model, and the utility model is not limited to enumerate above-mentioned implementation Example, it should be noted that under the reference of this specification, that is made all equally replaces anyone skilled in the art It generation, obvious variant, all falls within the essential scope of this specification, it ought to be by the protection of the utility model.

Claims (5)

1. a kind of cylinder and piston connecting rod unit, including, crankshaft, cylinder is by cylinder block and is placed in the intracorporal piston group of cylinder At, which is characterized in that the air cylinder structure are as follows: arc-shaped piston (7) front end has piston head (24), and piston head has on (24) Former and later two sections are greater than the side skirt (21) of piston head (24), and piston head (24) inner cavity forms a gas chamber, piston (7) rear end There are piston arm (28) and hose coupling (22), the interior air cavity (20) and ring extended along its axial line is provided in piston (7) The outer air cavity (19) of shape, interior air cavity (20) form exhaust circular hole (14), outer air cavity (19) rear end and hose in piston (7) rear end face Connector (22) connection, outer air cavity (19) front end are connected to the venthole (9) being located on piston head (24), interior air cavity (20) and piston Head (24) inner cavity is connected to, and is provided with the air inlet duct (18) being connected to its inner cavity on piston head (24)；Crankcase (1) is that section is round Or the cylinder of octagon, the crankshaft (5), which is parallel to and is eccentric in the cylinder axial line, is rotatably arranged in crankcase (1) It is interior, it is fixed with straight pin (27) on the crank arm (26) of crankshaft (5), bearing (11) is installed on straight pin；Above-mentioned two cylinder It is one group, is arranged in crankcase by central symmetry mode, which is located at perpendicular to crankcase cylinder axial line On the same circumference, the center of circle of the circumference is located on crankcase cylinder axial line；Along its cylinder direction of axis line in crankcase (1) Be provided with multiple groups cylinder, every group of cylinder is connect in the following manner with crankshaft (5): the both ends of Qu Huan (3) respectively through bolt (15) with The piston arms (28) of two cylinders of group connects, and connecting rod (4) upper end is hinged or the link pin (10) that is fixed in the middle part of Qu Huan (3) On, asessory shaft (6) is along the forward and backward end plate that crankcase (1) cylinder axial line is fixed on crankcase cylinder, bar shaped on connecting rod (4) The fluting (30) in hole is connected on the bearing (11) of straight pin (27) of the crank arm of crankshaft (5), the aperture set on connecting rod lower end On the bearing of asessory shaft (6)；Worm gear (8) setting is external in crankcase (1), carrys out exhaust gas for receiving air distribution system (25) Worm gear adapter tube B(13) it is connected to worm gear (8) import, the worm gear adapter tube A(12 in worm gear outlet) be connected to multiple appendixs (23), often Root appendix is connected to the hose coupling (22) of a cylinder.

2. a kind of cylinder according to claim 1 and piston connecting rod unit, which is characterized in that the piston head (24) On air inlet duct (18) be two, be quadrangle air inlet duct.

3. a kind of cylinder according to claim 2 and piston connecting rod unit, which is characterized in that the piston head (24) On venthole be 6, and be uniformly distributed.

4. a kind of cylinder according to claim 3 and piston connecting rod unit, which is characterized in that also there is support frame, Support frame is mounted on crankshaft chamber interior wall；One cylinder block (2) is fixed on a support frame.

5. a kind of cylinder and piston connecting rod unit, feature described in any claim exist according to claim 1~4 In the cylinder is five groups；There are four partition in the crankcase (1), crankcase is divided into five and includes gas by four partitions The space of cylinder.