CN108825393A - The cylinder assembly of pancake engine - Google Patents
The cylinder assembly of pancake engine Download PDFInfo
- Publication number
- CN108825393A CN108825393A CN201810932330.2A CN201810932330A CN108825393A CN 108825393 A CN108825393 A CN 108825393A CN 201810932330 A CN201810932330 A CN 201810932330A CN 108825393 A CN108825393 A CN 108825393A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- hole
- cylinder body
- face
- camshaft
- 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.)
- Granted
Links
- 235000012771 pancakes Nutrition 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 11
- 238000003754 machining Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F02F1/18—Other 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
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
-
- 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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0002—Cylinder arrangements
- F02F7/0007—Crankcases of engines with cylinders in line
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of cylinder assemblies of pancake engine, including cylinder body ontology and the crankshaft bearing seat and camshaft bearing bush seat that are integrally formed with cylinder body ontology.The cylinder assembly of pancake engine of the present invention, easy to process, process is simple, high in machining efficiency, at low cost.
Description
Technical field
The invention belongs to technical field of engines, specifically, the present invention relates to a kind of cylinder bodies of pancake engine
Assembly.
Background technique
Existing pancake engine cylinder body is divided into left cylinder and right cylinder body, and left and right cylinder body frame each other, keep left right cylinder
A circle bolt on body faying face seals, this engine cylinder body there are the shortcomings that it is as follows：
1, difficulty of processing is big：Before traditional cylinder body machining crankshafts bearing hole and camshaft bearing bore, need with crankshaft bearing seat spiral shell
Column and corresponding nut are tightened left and right cylinder body by the pretightning force of design point, and here it is so-called cylinder body mould assembling processing.And
Mould assembling processing front right cylinder body mounting surface A and left cylinder mounting surface C must be machined to position, because there is stud in the face A and the face C after mould assembling
Exist with corresponding nut, fastener, which blocks cutter, cannot achieve the mould assembling face post-processing A and the face C.Crankshaft bearing is reprocessed at this time
Hole and camshaft bearing bore can cause to deform because face A and face C bears bolt pretightening, it is ensured that the flatness of face A and face C,
And guaranteeing that face B to face A and face B is identical to the distance of face C simultaneously, difficulty of processing is very big, and processing efficiency is low；
2, piston eccentric wear, gas leakage amount are big：Because face A and face C is with the respective smart base of left and right cylinder body in process
Quasi- processing, while left and right cylinder body cylinder can not be led to by processing the depth of parallelism of guarantee face A and face C again after face A and face C mould assembling
Hole is not 180 ° of distributions, and it is big that such piston will lead to piston eccentric wear, gas leakage amount during the motion, then seriously may
Lead to engine scuffing；
3, engine performance is unstable, vibration is big, service life is short：It is difficult to ensure that face B is to face A and face in cylinder body process
The distance of B to face C, the two distances will affect the compression clearance of engine, and then influence the compression ratio of engine, cause to start
The explosion pressure of machine opposed two cylinder in the process of running is inconsistent, and engine performance is unstable, vibration noise is big, service life is short；
4, block quality is big：This cylinder body or so frame each other, structure is more thick and heavy, if equipped as aviation power,
It can be because weight causes the market competitiveness to decline greatly；
5, production finished product is high：This engine cylinder body will open respectively two molds for left and right cylinder body in the production process,
Cost of manufacture is high.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of water
The cylinder assembly of flat contraposition engine, it is therefore an objective to improve processing efficiency.
To achieve the goals above, the technical scheme adopted by the invention is as follows：The cylinder assembly of pancake engine, including
Cylinder body ontology and the crankshaft bearing seat and camshaft bearing bush seat being integrally formed with cylinder body ontology.
The cylinder body ontology has the left cylinder hole for accommodating left piston and accommodates the right cylinder hole of right piston, left cylinder hole and right cylinder hole
For coaxial arrangement, the crankshaft bearing seat is between left cylinder hole and right cylinder hole.
The left cylinder hole and the right cylinder hole are respectively set two.
The cylinder body body interior is equipped with the hydraulic tappet mounting hole for installing hydraulic tappet.
The cylinder assembly of pancake engine of the present invention, easy to process, process is simple, high in machining efficiency, cost
It is low.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the structural schematic diagram of the cylinder assembly of pancake engine of the present invention；
Fig. 2 is the main view of the cylinder assembly of pancake engine of the present invention；
In figure label for：1, crankshaft bearing seat；2, left cylinder hole；3, main oil gallery；4, hydraulic tappet mounting hole；5, cam shaft
Hold seat；6, the first roll pin；7, the first bolt hole；8, the second roll pin；9, the second bolt hole；10, technique oilhole；
11, cam oilhole；12, crankshaft lubrication oilhole；13, right cylinder hole.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
It should be noted that in embodiment disclosed below, " first " and " second " not representative structure and/or
Absolute differentiation relationship functionally, does not represent the successive sequence that executes yet, and merely for convenience of description.
As depicted in figs. 1 and 2, the present invention provides a kind of cylinder assemblies of pancake engine, including cylinder body ontology
With the crankshaft bearing seat 1 and camshaft bearing bush seat 5 being integrally formed with cylinder body ontology.
Specifically, as depicted in figs. 1 and 2, cylinder body ontology is combined cylinder-block-crankcase unit, cylinder body ontology and crankshaft bearing seat 1 and
Camshaft bearing bush seat 5 is integrally formed, and the left cylinder of available engine and right cylinder body are integrated by cylinder body ontology, is adding in this way
A set of smart benchmark can be shared during work, there is no mould assembling to process, and left and right cylinder cap mounting surface can be protected at a distance from main bearing hole
Demonstrate,prove identical, while left and right cylinder cap mounting surface flatness is easy to guarantee, so that process becomes simply, to help to improve processing
Efficiency.
As depicted in figs. 1 and 2, the support of crankshaft is realized by crankshaft bearing seat 1 and additional main beating cap, base bearing
Lid is mounted on crankshaft bearing seat 1 by the second bolt, and crankshaft bearing seat 1 has the second bolt hole for allowing the second bolt to be inserted into
9, the second bolt hole 9 is threaded hole.The support of camshaft is by camshaft bearing bush seat 5 and additional camshaft-bearing cap Lai real
Existing, camshaft bearing bush seat 5 is located at the top of crankshaft bearing seat 1, and camshaft-bearing cap is to be mounted on camshaft by the first bolt
On bearing block 5, camshaft bearing bush seat 5 has the first bolt hole 7 for allowing the first bolt to be inserted into, and the first bolt hole 7 is threaded hole.Cylinder
Body ontology is combined cylinder-block-crankcase unit, and the additional crankshaft bearing cap of combined cylinder-block-crankcase unit and camshaft-bearing cap can realize cylinder body for song
The supporting role of axis and camshaft, in comparison total quality is smaller, meets light-weight design theory.
As depicted in figs. 1 and 2, cylinder body ontology has the left cylinder hole 2 for accommodating left piston and accommodates the right cylinder hole 13 of right piston,
Left cylinder hole 2 provides tracks for left piston, and right cylinder hole 13 provides tracks for right piston, and left cylinder hole 2 and right cylinder hole 13 are
Circular hole and left cylinder hole 2 and right cylinder hole 13 are coaxial arrangement, crankshaft bearing seat 1 positioned at left cylinder hole 2 and right cylinder hole 13 between, cylinder holes with
The axis in right cylinder hole 13 and the axis perpendicular of camshaft.Left cylinder hole 2 and right cylinder hole 13 are respectively set two, two left cylinder holes 2
On the same straight line parallel with the axis of camshaft, two right cylinder holes 13 are also at parallel with the axis of camshaft
On same straight line.
As depicted in figs. 1 and 2, cylinder body body interior is equipped with the hydraulic tappet mounting hole 4 for installing hydraulic tappet, hydraulic
Tappet mounting hole 4 is located at the top in right cylinder hole 13.The inside of cylinder body ontology is additionally provided with main oil gallery 3, cam oilhole 11 and song
Shaft oil hole 12, cam oilhole 11 and crankshaft lubrication oilhole 12 are connected to main oil gallery 3.Cam oilhole 11 is used for will
Lubricating oil from main oil gallery 3 is guided to camshaft, and for being lubricated to camshaft, cam oilhole 11 is in camshaft
It is formed on the inner headed face of bearing block 5 and allows the opening of outflow of lubrication oil.Crankshaft lubrication oilhole 12 is used for will be from the lubrication of main oil gallery 3
At oil guidance to crankshaft, for being lubricated to crankshaft, crankshaft lubrication oilhole 12 is formed on the inner headed face of crankshaft bearing seat 1 and is allowed
The opening of outflow of lubrication oil.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (4)
1. the cylinder assembly of pancake engine, it is characterised in that：It is integrally formed including cylinder body ontology and with cylinder body ontology
Crankshaft bearing seat and camshaft bearing bush seat.
2. the cylinder assembly of pancake engine according to claim 1, it is characterised in that：The cylinder body ontology has
It accommodates the left cylinder hole of left piston and accommodates the right cylinder hole of right piston, left cylinder hole and right cylinder hole are coaxial arrangement, the crankshaft bearing
Seat is between left cylinder hole and right cylinder hole.
3. the cylinder assembly of pancake engine according to claim 2, it is characterised in that：The left cylinder hole and described
Right cylinder hole is respectively set two.
4. the cylinder assembly of pancake engine according to any one of claims 1 to 3, it is characterised in that：The cylinder body
Body interior is equipped with the hydraulic tappet mounting hole for installing hydraulic tappet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932330.2A CN108825393B (en) | 2018-08-16 | 2018-08-16 | Cylinder assembly of horizontally opposed engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932330.2A CN108825393B (en) | 2018-08-16 | 2018-08-16 | Cylinder assembly of horizontally opposed engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825393A true CN108825393A (en) | 2018-11-16 |
| CN108825393B CN108825393B (en) | 2024-03-01 |
Family
ID=64150129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810932330.2A Active CN108825393B (en) | 2018-08-16 | 2018-08-16 | Cylinder assembly of horizontally opposed engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825393B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319584Y (en) * | 1998-03-13 | 1999-05-19 | 赵金新 | Non-link, electromagnetic speed variating two-in-one cylinder oil electromachine |
| CN201258967Y (en) * | 2008-06-26 | 2009-06-17 | 上海汽车变速器有限公司 | Shifting device for opposition two stage cylinder |
| CN101598080A (en) * | 2009-07-16 | 2009-12-09 | 北京航空航天大学 | A kind of crankcase of motor |
| CN206655740U (en) * | 2017-04-14 | 2017-11-21 | 董振宝 | Flat twin engine gas distribution assembly, engine and vehicle |
| CN208669443U (en) * | 2018-08-16 | 2019-03-29 | 芜湖钻石航空发动机有限公司 | The cylinder assembly of pancake engine |
-
2018
- 2018-08-16 CN CN201810932330.2A patent/CN108825393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319584Y (en) * | 1998-03-13 | 1999-05-19 | 赵金新 | Non-link, electromagnetic speed variating two-in-one cylinder oil electromachine |
| CN201258967Y (en) * | 2008-06-26 | 2009-06-17 | 上海汽车变速器有限公司 | Shifting device for opposition two stage cylinder |
| CN101598080A (en) * | 2009-07-16 | 2009-12-09 | 北京航空航天大学 | A kind of crankcase of motor |
| CN206655740U (en) * | 2017-04-14 | 2017-11-21 | 董振宝 | Flat twin engine gas distribution assembly, engine and vehicle |
| CN208669443U (en) * | 2018-08-16 | 2019-03-29 | 芜湖钻石航空发动机有限公司 | The cylinder assembly of pancake engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108825393B (en) | 2024-03-01 |
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