CN104454165A - Multi-cylinder internal combustion engine set adopting crosshead assembly rod - Google Patents
Multi-cylinder internal combustion engine set adopting crosshead assembly rod Download PDFInfo
- Publication number
- CN104454165A CN104454165A CN201410804172.4A CN201410804172A CN104454165A CN 104454165 A CN104454165 A CN 104454165A CN 201410804172 A CN201410804172 A CN 201410804172A CN 104454165 A CN104454165 A CN 104454165A
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- CN
- China
- Prior art keywords
- crosshead
- bar
- cylinder
- internal combustion
- cylinders
- 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.)
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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
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
Abstract
The invention discloses a multi-cylinder internal combustion engine set adopting a crosshead assembly rod. The multi-cylinder internal combustion engine set adopting the crosshead assembly rod comprises the crosshead assembly rod, at least eight air cylinders and at least one crank and connection rod mechanism. Each air cylinder is provided with a corresponding air cylinder cover assembly and internally provided with a piston, and each piston is directly connected to the same crosshead assembly rod through a corresponding piston rod; according to the at least eight air cylinders, at least four air cylinders and the other at least four air cylinders are symmetrically arranged on the two sides of the crosshead assembly rod, and the piston rods in any two symmetrical air cylinders and the motion trails of the piston rods are located on the same axis; the connecting rod small end of each crank and connection rod mechanism is connected with the crosshead assembly rod, and the connecting rod big end of each crank and connection rod mechanism is connected with one crank journal. The problem that a medium and low speed internal combustion engine is large in size is solved, the stress on main journals and the crank journals is even, and lubrication of the main journals and the crank journals is improved.
Description
Technical field
The present invention relates to field of internal combustion engine, particularly relate to a kind of the multi-cylinder internal combustion unit and the multi-cylinder engine that adopt crosshead assembly bar.
Background technique
General traditional combustion engine due to do work and compression time bent axle connecting rod bearing shell be all in pressured state and cause main journal and crankshaft journal discontinuity, lubrication effect is poor.When piston acting promotes crank rotation by chain bar, the side effect that produces thrust of tossing about makes piston and the green side of cylinder rub to cause piston and cylinder is even is worn and loses partial power.
In addition, tradition medium speed engine, low-speed machine volume are large, volume as the internal-combustion engine Wa Xilan 32 type medium speed engine of Yuchai engine works production is length × wide × height=8295mm × 3020mm × 3905mm, discharge capacity is 578L, total output is 9000kw, displacement volume ratio reaches 1:168, and summation watt rating is than being 10.87L/kw; The volume of the Wa Xilan RT-flex82C type low-speed machine that Yuchai engine works produce is length × wide × height=21015mm × 7680mm × 13240mm, and discharge capacity is 16768L, and total output is 54240kw, and displacement volume ratio reaches 1:127, and summation watt rating is than being 39L/kw; Existing similar middle low-speed machine displacement volume is than large, and therefore, when manufacturing low-speed machine in these large-diameter, large stroke, huge discharge, especially low-speed machine needs to adopt large heavy duty equipment, and equipment investment is large, and manufacture cost is high.
Summary of the invention
The present invention aims to provide a kind of crosshead that adopts and assembles the multi-cylinder internal combustion unit of bar, the bulky problem of low-speed machine during this internal combustion unit can solve, and ensures main journal and crankshaft journal obtains uniform stressed and lubrication improves simultaneously.
To achieve these goals, the technical solution adopted in the present invention is:
Adopt crosshead to assemble a multi-cylinder internal combustion unit for bar, its structural feature is, comprises a crosshead and assembles bar, at least eight cylinders, and at least one group of connecting rod; Each cylinder is equipped with corresponding cylinder head assembly, is provided with a piston in each cylinder, each piston is all connected directly between same crosshead by corresponding piston rod and assembles on bar; In at least eight cylinders, wherein at least four cylinders and at least four cylinders are in addition symmetricly set on crosshead and assemble bar both sides, and piston rod in the cylinder of symmetry between two arbitrarily and movement locus thereof are positioned on same axis; Wrist-pin end of connecting rod and the described crosshead of described connecting rod are assembled bar and are connected, and the connecting rod tip of this connecting rod is connected with crankshaft journal.
Thus, multi-cylinder group is adopted to arrange, number of cylinders of the present invention is far more than the number of cylinders of conventional internal combustion unit, especially for low-speed machine, this design greatly reduces the volume and weight of internal-combustion engine, therefore, no longer needing when manufacturing heavy duty to adopt heavy mechanical equipment manufacture, being conducive to volume production.Meanwhile, because cylinder is symmetrical arranged, the connecting rod bearing shell of connecting rod stressed evenly, thus make main journal and crankshaft journal obtain uniform stressed and good lubrication effect.
Be below the technological scheme of further improvement of the present invention:
As a kind of concrete structural type, described at least eight cylinders are divided into one group, and these group cylinder both sides are respectively provided with one group of connecting rod be fixedly connected on crosshead assembly bar.
As the structural type that another kind is concrete, described at least eight cylinders are divided into two groups, often organize cylinder and comprise at least four cylinders being symmetricly set on crosshead and assembling bar both sides, and between two groups of cylinders, be provided with one group or the two groups connecting rod be fixedly connected on crosshead assembly bar.
As the structural type that another is concrete, described at least eight cylinders are divided into three groups, the cylinder of middle groups comprises at least four cylinders being symmetricly set on crosshead and assembling bar both sides, the cylinder of both sides group comprises at least two cylinders being symmetricly set on crosshead and assembling bar both sides, and is provided with one group of connecting rod be fixedly connected on crosshead assembly bar between two adjacent groups cylinder.Further, in three groups of cylinders, the cylinder of middle a group has 8, each 4 of the cylinder of both sides group.
Described connecting rod neighbor, bent axle turns on the contrary, that is, the bent axle of two adjacent groups connecting rod turns on the contrary, and thus, the lateral thrust that crank rotation produces is rotated by the subtend of double-crankshaft and offsets, and reduces the Oscillation Amplitude of internal combustion engine body.
Described crosshead is assembled bar and is connected with the piston rod of each cylinder is vertical, and thus, it is consistent with each cylinder piston moving direction that crosshead assembles bar, ensure that the high efficiency of transmission.
As a kind of concrete guide structure form, described guide structure comprises the slide plate chair be fixed in frame, is contained in the thrust slide plate on slide plate chair and directed slide plate; This thrust slide plate and directed slide plate are all fixed on crosshead and assemble on bar and the both sides being arranged on cylinder.
Further, present invention also offers a kind of multi-cylinder internal combustion unit, this internal-combustion engine comprises many groups multi-cylinder internal combustion unit adopting crosshead to assemble bar as above, the each group of multi-cylinder internal combustion unit parallel side-by-side adopting crosshead to assemble bar is arranged, and the height that adjacent two crossheads assemble bar is different, specifically, the height of crosshead assembly bar is determined by the position of each crankshaft journal.
Wherein, the internal combustion unit of at least two groups shares a crosshead and assembles bar, and many crossheads are assembled bar parallel side-by-side and arranged.
The air inlet system and exhaust system of internal combustion unit of the present invention, oil supply system, ignition system, circuitry, cooling system, lubrication system and speed governing and control system take traditional design and technique.
Compared with prior art, the invention has the beneficial effects as follows: project organization compactedness of the present invention is good, displacement volume ratio can reduce greatly, even about 1:30 can be reached, summation watt rating, than being about 5L/kw, greatly reducing the volume of unit, alleviates the weight of unit, simultaneously, manufacture view due to cylinder diameter smaller, do not need to take heavy mechanical equipment, general medium-sized internal-combustion engine enterprise can complete production, be conducive to batch production, thus significantly reduce manufacture cost.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the working principle schematic diagram of an embodiment of the present invention;
Fig. 4 is the plan view that the present invention's another kind has the embodiment of multiple single cylinder group;
Fig. 5 is the structural representation that the internal combustion unit of the present invention four groups shares a crosshead assembly bar.
In the drawings
1-crosshead assembles bar; 2-piston rod; 3-piston; 4-cylinder head assembly;
5,9-connecting rod; 6-slide plate chair; 7-thrust slide plate; The directed slide plate of 8-;
10-crankshaft journal.
Embodiment
A kind of multi-cylinder engine, the employing crosshead comprising 36 groups of arranged in parallel assembles the multi-cylinder internal combustion unit of bar, comprise 1008 cylinders altogether, as shown in Figure 5, wherein adjacent four groups of multi-cylinder internal combustion units adopting crosshead to assemble bar share a crosshead assembly bar 1, in other words, every root crosshead is assembled both sides on bar and is provided with 112 cylinders altogether, and the multi-cylinder internal combustion unit that single group adopts crosshead to assemble bar comprises 28 cylinders.Specifically, the multi-cylinder internal combustion unit that single group adopts crosshead to assemble bar comprises a crosshead and assembles bar 1,28 cylinders, and two groups of connecting rods 5,9; Each cylinder is equipped with corresponding cylinder head assembly 4, is provided with a piston 3 in each cylinder, each piston 3 is all connected directly between same crosshead by corresponding piston rod 2 and assembles on bar 1; In 28 cylinders, wherein 14 cylinders and other 14 cylinders are symmetricly set on crosshead and assemble bar 1 both sides, and piston rod 2 in cylinder symmetrical between two arbitrarily and movement locus thereof are positioned on same axis; The connecting-rod head of described connecting rod 5,9 is assembled bar 1 with described crosshead and is connected, and the crank end of the connecting-rod head of this connecting rod 5,9 is used for being connected with bent axle.
The piston rod of 112 cylinders in the multi-cylinder internal combustion unit of the employing crosshead assembly bar of the present embodiment is all directly assembled bar 1 with a crosshead and is fixedly linked, operationally, 28 cylinders are had to be vented at acting, 28 cylinders at compression, 28 cylinders at air inlet, 28 cylinders, piston is arranged symmetrically with and arranges by four-stroke firing order, therefore bent axle is subject to thrust (during toward motion) or the pulling force (during reciprocating motion) that crosshead assembles bar 1 when rotated, thus makes main journal and crankshaft journal obtain uniform stressed and good lubrication effect.
Crosshead is assembled bar 1 and is used for fixing piston in cylinder to-and-fro motion, completes four-stroke work (air inlet, compression, acting, exhaust) during forwarding, completes four-stroke work (compression, acting, exhaust, air inlet) during reversing motion.
The present embodiment makes full use of connecting rod rotation and the power that piston does work is passed to bent axle by connecting rod, thus promotes or pull crankshaft rotating.The present invention can design different types of machines, as single axle type, double-crankshaft type and many bent axles type, with double-crankshaft type for best type, adopt drag link out movement, the lateral thrust to piston is produced by connecting rod when counteracting crank rotation, eliminate piston and the green side-friction force of cylinder and reduce body vibration, and at rational position installed thrust slide plate and directed slide plate, power stage configures as required.
The internal combustion engine of the present embodiment takes Long travel to design, and cylinder adopts four-stroke work.Multiple cylinders of internal combustion unit of the present invention arrange the firing order of piston by the principle of crank uniform stressed.
The internal-combustion engine parameter that the present embodiment relates to is as follows:
Cylinder diameter is 110mm, stroke of piston is 410mm, cylinder number is 1008, displacement per cylinder is 3.895L, and total displacement is 3926L, and machine volume is length × wide × height=8100mm × 4320mm × 2900mm, total output is 39260kw, displacement volume is than being 1:25.84, and the power that the engine swept volume being 700rpm by four-stroke rotating speed often rises is that 10kw calculates, then summation watt rating is than being 2.58L/kw.Described displacement volume is than referring to the ratio of the total displacement of internal-combustion engine with overall volume, and described summation watt rating is than referring to the ratio of the total volume of internal-combustion engine with total output.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the present invention, and be not used in and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen into the application's claims limited range.
Claims (10)
1. adopt crosshead to assemble a multi-cylinder internal combustion unit for bar, it is characterized in that, comprise a crosshead and assemble bar (1), at least eight cylinders, and at least one group of connecting rod (5,9); Each cylinder is equipped with corresponding cylinder head assembly (4), is provided with a piston (3) in each cylinder, each piston (3) is all connected directly between same crosshead by corresponding piston rod (2) and assembles on bar (1); In at least eight cylinders, wherein at least four cylinders and at least four cylinders are in addition symmetricly set on crosshead and assemble bar (1) both sides, and piston rod (2) in the cylinder of symmetry between two arbitrarily and movement locus thereof are positioned on same axis; Wrist-pin end of connecting rod and the described crosshead of described connecting rod (5,9) are assembled bar (1) and are connected, and the connecting rod tip of this connecting rod (5,9) is connected with crankshaft journal (10).
2. employing crosshead according to claim 1 assembles the multi-cylinder internal combustion unit of bar, it is characterized in that, described at least eight cylinders are divided into one group, and these group cylinder both sides are respectively provided with one group of connecting rod (5,9) be fixedly connected in crosshead assembly bar (1).
3. employing crosshead according to claim 1 assembles the multi-cylinder internal combustion unit of bar, it is characterized in that, described at least eight cylinders are divided into two groups, often organize cylinder and comprise at least four cylinders being symmetricly set on crosshead and assembling bar (1) both sides, and between two groups of cylinders, be provided with one group or the two groups connecting rod be fixedly connected in crosshead assembly bar (1).
4. employing crosshead according to claim 1 assembles the multi-cylinder internal combustion unit of bar, it is characterized in that, described at least eight cylinders are divided into three groups, the cylinder of middle groups comprises at least four cylinders being symmetricly set on crosshead and assembling bar (1) both sides, the cylinder of both sides group comprises at least two cylinders being symmetricly set on crosshead and assembling bar (1) both sides, and between two adjacent groups cylinder, be provided with one group of connecting rod (5,9) be fixedly connected in crosshead assembly bar (1).
5. employing crosshead according to claim 4 assembles the multi-cylinder internal combustion unit of bar, and it is characterized in that, in three groups of cylinders, the cylinder of middle a group has 8, each 4 of the cylinder of both sides group.
6. according to claim 1,2,4, the employing crosshead described in 5 assembles the multi-cylinder internal combustion unit of bar, and it is characterized in that, the bent axle of two adjacent groups connecting rod (5,9) turns on the contrary.
7. assemble the multi-cylinder internal combustion unit of bar according to the employing crosshead one of claim 1-5 Suo Shu, it is characterized in that, described crosshead is assembled bar (1) and is connected with the piston rod (2) of each cylinder is vertical.
8. employing crosshead according to claim 7 assembles the multi-cylinder internal combustion unit of bar, and it is characterized in that, described guide structure comprises the slide plate chair (6) be fixed in frame, is contained in the thrust slide plate (7) on slide plate chair (6) and directed slide plate (8); Crosshead assembly bar (1) that is all fixed on this thrust slide plate (7) and directed slide plate (8) goes up and the both sides being arranged on cylinder.
9. a multi-cylinder engine, it is characterized in that, comprise the multi-cylinder internal combustion unit that the many groups of employing crossheads as described in one of claim 1-8 assemble bar, the multi-cylinder internal combustion unit parallel side-by-side that each group adopts crosshead to assemble bar is arranged, and the height that adjacent two crossheads assemble bar is different.
10. multi-cylinder engine according to claim 9, is characterized in that, the internal combustion unit of at least two groups shares a crosshead and assembles bar (1), and many crossheads are assembled bar (1) parallel side-by-side and arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804172.4A CN104454165A (en) | 2014-12-18 | 2014-12-18 | Multi-cylinder internal combustion engine set adopting crosshead assembly rod |
| PCT/CN2014/095090 WO2016095260A1 (en) | 2014-12-18 | 2014-12-26 | Multi-cylinder internal combustion engine set adopting a crosshead assembly rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804172.4A CN104454165A (en) | 2014-12-18 | 2014-12-18 | Multi-cylinder internal combustion engine set adopting crosshead assembly rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454165A true CN104454165A (en) | 2015-03-25 |
Family
ID=52900815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410804172.4A Pending CN104454165A (en) | 2014-12-18 | 2014-12-18 | Multi-cylinder internal combustion engine set adopting crosshead assembly rod |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104454165A (en) |
| WO (1) | WO2016095260A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952532A (en) * | 2016-04-22 | 2016-09-21 | 安庆中船动力配套有限公司 | Single-cylinder crankshaft-free type piston engine |
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| JP3975064B2 (en) * | 2001-08-31 | 2007-09-12 | 本田技研工業株式会社 | Piston cooling device for multi-cylinder engine |
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| US6895921B1 (en) * | 2003-08-01 | 2005-05-24 | Peter Girard | Epicyclic cross piston internal combustion engine |
| CN202832781U (en) * | 2012-07-03 | 2013-03-27 | 李杰浩 | Horizontally-opposed two-stage piston engine horizontally arranged |
| CN203867801U (en) * | 2014-05-22 | 2014-10-08 | 杭州杭氧压缩机有限公司 | Contra-positioned reciprocating piston type nitrogen compressor with four-row three-grade compression |
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2014
- 2014-12-18 CN CN201410804172.4A patent/CN104454165A/en active Pending
- 2014-12-26 WO PCT/CN2014/095090 patent/WO2016095260A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128659A (en) * | 2005-02-24 | 2008-02-20 | 约翰·W·菲茨杰拉德 | Premixed charge compression ignition engine with a variable piston stroke |
| CN201318216Y (en) * | 2008-12-22 | 2009-09-30 | 靳北彪 | External connecting bar engine |
| CN101975111A (en) * | 2010-10-15 | 2011-02-16 | 靳北彪 | Piston crank mechanism of combined cylinder |
| US20120240894A1 (en) * | 2010-11-18 | 2012-09-27 | Odd Bernhard Torkildsen | Device for transmission of force from the pistons of a piston engine |
| CN103492757A (en) * | 2011-04-22 | 2014-01-01 | 有限会社Tac研究 | X/Y-separation crank mechanism and drive device provided therewith |
| CN202266332U (en) * | 2011-08-31 | 2012-06-06 | 刘贵荣 | Rotary type engine device |
| CN203050887U (en) * | 2013-01-07 | 2013-07-10 | 常博宇 | Cylinder opposed type internal combustion engine |
| CN204419356U (en) * | 2014-12-18 | 2015-06-24 | 江景通 | A kind of multi-cylinder internal combustion unit and multi-cylinder engine adopting crosshead assembly bar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952532A (en) * | 2016-04-22 | 2016-09-21 | 安庆中船动力配套有限公司 | Single-cylinder crankshaft-free type piston engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016095260A1 (en) | 2016-06-23 |
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Application publication date: 20150325 |