CN100578004C - In-line multi-cylinder engine - Google Patents
In-line multi-cylinder engine Download PDFInfo
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- CN100578004C CN100578004C CN200610115089A CN200610115089A CN100578004C CN 100578004 C CN100578004 C CN 100578004C CN 200610115089 A CN200610115089 A CN 200610115089A CN 200610115089 A CN200610115089 A CN 200610115089A CN 100578004 C CN100578004 C CN 100578004C
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- cross
- real wall
- continuous real
- water route
- wall portion
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- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
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- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- 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
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
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- 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 present invention provided an in-line multiple cylinder engine capable of efficiently cooling a continuous wall part on a top dead center side. A cooling water guide surface 8a entering an inside of a crossing water channel lower half part 5b is formed at an upper part of a downward continuous wall part 3b. The cooling water guide surface 8a gets higher as it gets closer to a left and right direction center part of the downward continuous wall part 3b from a slit shape inlet 7a. Cooling water 9 flowing into the crossing water channel lower half part 5b from the slit shape inlet 7a is directed to a cast surface of the crossing water channel upper part 5a depressing upward between a left and a right head bolt mounting boss 6a, 6b by being guided by a cooling water guide surface 8a.
Description
Technical field
The present invention relates to a kind of In-line multi-cylinder engine, detailed says, relates to a kind of In-line multi-cylinder engine that can effectively cool off near the continuous real wall portion of upper dead center.
Background technique
As existing In-line multi-cylinder engine, same with the present invention, be the device that possesses following formation.Making the direction of setting up of bent axle is fore-and-aft direction, the width direction that makes cylinder body is a left and right directions, cylinder body is provided with the cylinder row that are made of a plurality of cylinders of arranging at fore-and-aft direction, about these cylinder row, be provided with water jacket, at adjacent cylinder each other, be provided with near the continuous real wall portion of upper dead center and be positioned at the below of its below continuous real wall portion, this near the continuous real wall portion of upper dead center and below be provided with cross-section water route between the continuous real wall portion, the slit-shaped of width before and after width was wider than about this cross-section water route formed, water jacket about being made by this cross-section water route is interconnected, from the water jacket of a side to the water jacket of opposite side by cooling water by in the cross-section water route.
In this In-line multi-cylinder engine, have following advantage: can be by the intensity that improves the cylinder row near the continuous real wall in the continuous real wall portion of upper dead center and below portion, simultaneously can be enough by the cooling water in the cross-section water route of slit-shaped in the broad range of above-below direction between the cooling cylinder.
But, in above-mentioned existing In-line multi-cylinder engine, though the easy local superheating of continuous real wall portion of close upper dead center owing to do not possess the device of effective this part of cooling, therefore can have problems.
In above-mentioned prior art, there is following problems.
Turn round continuously if carry out high load for a long time, then the durability of cylinder body reduces easily.
Though because the easy local superheating of continuous real wall portion of close upper dead center, but owing to do not possess the device of effective this part of cooling, if turn round continuously so carry out high load for a long time, then heat ageing takes place in continuous real wall portion near upper dead center easily, thereby the durability of cylinder body reduces easily.
Summary of the invention
The object of the present invention is to provide a kind of In-line multi-cylinder engine that can address the above problem, that is, can effectively cool off In-line multi-cylinder engine near the continuous real wall portion of upper dead center.
The specific item of invention that first technological scheme of the present invention relates to is as follows.
A kind of In-line multi-cylinder engine, making the direction of setting up of bent axle is fore-and-aft direction, the width direction that makes cylinder body is a left and right directions, be provided with the cylinder row that constitute by a plurality of cylinders of on fore-and-aft direction, arranging at cylinder body, about these cylinder row, be provided with water jacket, at adjacent cylinder each other, be provided with near the continuous real wall portion of upper dead center and be positioned at the below of its below continuous real wall portion, this near the continuous real wall portion of upper dead center and below be provided with cross-section water route between the continuous real wall portion, the slit-shaped of width before and after width was wider than about this cross-section water route formed, water jacket about being made by this cross-section water route is interconnected, water jacket from the water jacket of a side towards opposite side, cooling water is by in the cross-section water route, it is characterized in that, the left and right sides near the continuous real wall portion of upper dead center be provided with should be connected near the continuous real wall portion of upper dead center about cylinder head bolt installation protuberance, by the cylinder head bolt about this protuberance being installed is connected to each other the real wall of adjacent cylinder, cylinder head bolt about this is installed between the protuberance and is formed with in the first half of cross-section water route, the position that cylinder head bolt about being lower than is installed protuberance is formed with cross-section water route Lower Half, the slit-shaped inlet of a horizontal side of this cross-section water route Lower Half, the following side space of protuberance is installed across the cylinder head bolt of a horizontal side, face from its positive side with the water jacket of a horizontal side, the slit-shaped outlet of the horizontal opposite side of cross-section water route Lower Half, the following side space of protuberance is installed across the cylinder head bolt of horizontal opposite side, face from its positive side with the water jacket of horizontal opposite side, below the top of continuous real wall portion be formed with the cooling water guide surface that enters in the Lower Half of cross-section water route, this cooling water guide surface, enter the mouth from slit-shaped, along with near the left and right directions central part of the continuous real wall in below portion and uprise, the cooling water that flow in the Lower Half of cross-section water route from slit-shaped inlet is guided by cooling water guide surface, thus cooling water towards about cylinder head bolt install that the casting plane to the cross-section water route of the fovea superior first half flows between the protuberance.
According to the present invention of first technological scheme, turn round continuously even carry out high load for a long time, also be difficult to reduce the durability of cylinder body.
Flow into the water guide surface guiding that is cooled of cooling water in the Lower Half of cross-section water route by making from slit-shaped inlet, thus cooling water towards about cylinder head bolt install that the casting plane to the cross-section water route of the fovea superior first half flows between the protuberance, effective cooling continuous real wall portion that overheated close upper dead center takes place easily thus.Therefore, turn round continuously, also be difficult to reduce the durability of cylinder body even carry out high load for a long time.
In addition, can easily remove the water route and form the casting sand of using core.
When removing the casting sand of water route formation usefulness core, if from entering into sand-blowing nozzle in the water jacket to the slit-shaped horizontal sandblast that enters the mouth, be cooled water guide surface guiding of the sand that then ejects, thus sand is blown to about cylinder head bolt install between the protuberance on the casting plane of the cross-section water route of the fovea superior first half, therefore can easily remove the water route and form casting sand with core.
In addition, improved the intensity of cylinder row.
Because by about cylinder head bolt protuberance is installed the real wall of adjacent cylinder is connected to each other, so improved the intensity of cylinder row.
In second technological scheme of the present invention, below the top of continuous real wall portion be provided with the sandblast guide surface that enters in the Lower Half of cross-section water route, this sandblast guide surface exports from slit-shaped, along with near the left and right directions central part of the continuous real wall in below portion and uprise gradually, from enter into sand-blowing nozzle in the water jacket to the sand of slit-shaped outlet transverse injection by the guiding of sandblast guide surface, thus sand towards about cylinder head bolt install that the casting plane to the cross-section water route of the fovea superior first half sprays between the protuberance.
According to a second technical aspect of the present invention, outside the invention effect of first technological scheme, can also obtain to improve and remove the effect that the water route forms the function of the casting sand of using core.
Sand-blowing nozzle in water jacket is guided by the sandblast guide surface to the sand of slit-shaped outlet transverse injection, thus sand towards about cylinder head bolt install that the casting plane to the cross-section water route of the fovea superior first half sprays between the protuberance, thus, sand is sprayed in can cutting off the water supply the road sidelong from the left and right sides of slit-shaped inlet and slit-shaped outlet, remove the function that the water route forms the casting sand of usefulness core thereby can improve.
In the 3rd technological scheme of the present invention, cooling water guide surface is from slit-shaped inlet, and along with the left and right directions central part near the continuous real wall in below portion, it is big that its tangent elevation becomes gradually.
According to a third technical aspect of the present invention, on the invention effect of first or second technological scheme, can obtain and improve near the cooling effectiveness of the continuous real wall portion of upper dead center and the effect of removing efficient of casting sand.
Cooling water guide surface enters the mouth from slit-shaped, along with left and right directions central part near the continuous real wall in below portion, it is big that its tangent elevation becomes gradually, therefore, make cooling water or the sand wide-angle deflection that makes progress by cooling water guide surface, so can allow the high collision of cooling water or sand intensity to the casting plane of the depths of the cross-section water route of the fovea superior first half or remain in the casting sand at this place, thereby can improve the efficient of removing near the cooling effectiveness of the continuous real wall portion of upper dead center and casting sand.
In the 4th technological scheme of the present invention, the sandblast guide surface is from slit-shaped outlet, and along with the left and right directions central part near the continuous real wall in below portion, it is big that its tangent elevation becomes gradually.
According to a fourth technical aspect of the present invention, except that any invention effect of first, second, third technological scheme, can also obtain the effect of removing efficient that improves casting sand.
The sandblast guide surface exports from slit-shaped, along with left and right directions central part near the continuous real wall in below portion, it is big that its tangent elevation becomes gradually, therefore make the sand wide-angle deflection that makes progress by the sandblast guide surface, so can allow the high-intensity collision of sand remain in casting sand on the casting plane of the depths of the cross-section water route of the fovea superior first half, thereby can improve the efficient of removing of casting sand.
Description of drawings
Fig. 1 represents the plan view as the cylinder body of the In-line multi-cylinder engine of present embodiment.
The A-A sectional view of Fig. 2 presentation graphs 1.
Fig. 3 represents vertical sectional side view of cylinder body.
Fig. 4 represents the figure that is equivalent to Fig. 2 of other mode of execution.
Embodiment
Based on the description of drawings embodiments of the present invention.Fig. 1 to Fig. 3 is the figure of the In-line multi-cylinder engine of explanation one embodiment of the present invention.
Fig. 1 represents the plan view of cylinder body of the In-line multi-cylinder engine of present embodiment, and the A-A sectional view of Fig. 2 presentation graphs 1, Fig. 3 are represented vertical sectional side view of cylinder body.
The summary of embodiments of the present invention is as follows.
The In-line multi-cylinder engine of present embodiment, by the integrally formed cylinder body 1 of crank box, making the direction of setting up of bent axle is fore-and-aft direction, and making the width direction of cylinder body 1 is left and right directions, and is provided with the cylinder row that are made of a plurality of cylinders 2,2 of arranging on fore-and-aft direction.About these cylinder row, be respectively arranged with water jacket 4a, 4b, at adjacent cylinder 2,2 each other, be provided with continuous real wall 3a of portion and the continuous real wall 3b of portion in below that is positioned at its below near upper dead center.
This near the continuous real wall 3a of portion of upper dead center and below be provided with cross-section water route 5 between the continuous real wall 3b of portion, this cross-section water route 5 forms the slit-shaped of width before and after width is wider than up and down. Water jacket 4a, 4b about being made by this cross-section water route 5 are interconnected, and from the water jacket 4a of the side water jacket 4b to opposite side, allow cooling water pass through in the cross-section water route 5.The one of the main reasons of passing through as the direction of cooling water from a side water jacket 4a towards opposite side water jacket 4b can list: cooling water outlet 12 (double dot dash line with Fig. 2 is represented) the water jacket 4a side amesiality from the cylinder center that forms at the end face of the cylinder body 1 that water pump (not shown) has been installed.
In the left and right sides near the continuous real wall 3a of portion of upper dead center, be respectively arranged with should near the continuous real wall 3a of portion of upper dead center be connected about cylinder head bolt protuberance 6a, 6b are installed, by the installation of the cylinder head bolt about this protuberance 6a, 6b the sidewall of adjacent cylinder 2,2 is connected to each other.Cylinder head bolt about this is installed and is formed between protuberance 6a, the 6b in the cross-section water route first half 5a, and the position that the cylinder head bolt about being lower than is installed protuberance 6a, 6b forms cross-section water route Lower Half 5b.The slit-shaped of the horizontal side of this cross-section water route Lower Half 5b inlet 7a installs the following side space of protuberance 6a across the cylinder head bolt of a horizontal side, faces from its positive side with the water jacket 4a of a horizontal side.The slit-shaped of the horizontal opposite side of cross-section water route Lower Half 5b outlet 7b installs the following side space of protuberance 6b across the cylinder head bolt of horizontal opposite side, faces from its positive side with the water jacket 4b of horizontal opposite side.
Below the top of the continuous real wall 3b of portion be formed with the cooling water guide surface 8a that enters in the cross-section water route Lower Half 5b.This cooling water guide surface 8a is from slit-shaped inlet 7a, along with uprising near the left and right directions central part of the continuous real wall 3b of portion in below.More particularly, cooling water guide surface 8a forms as follows circular-arc: from slit-shaped inlet 7a, along with the left and right directions central part near the continuous real wall 3b of portion in below, it is big that its tangent elevation becomes gradually.Flow into cooling water 9 in the cross-section water route Lower Half 5b by the water guide surface 8a guiding that is cooled from slit-shaped inlet 7a, thus towards about casting plane from cylinder head bolt to the cross-section water route first half 5a of fovea superior is installed between protuberance 6a, the 6b.
Below the top of the continuous real wall 3b of portion be provided with the sandblast guide surface 8b that enters in the cross-section water route Lower Half 5b.This sandblast guide surface 8b is from slit-shaped outlet 7b, along with uprising gradually near the left and right directions central part of the continuous real wall 3b of portion in below.More particularly, sandblast guide surface 8b forms as follows circular-arc: from slit-shaped outlet 7b, along with the left and right directions central part near the continuous real wall 3b of portion in below, it is big that its tangent elevation becomes gradually.When removing the casting sand of water route formation usefulness core, if sand-blowing nozzle 10 is entered in the water jacket 4b, export 7b transverse injection sand 11 from sand-blowing nozzle 10 to slit-shaped, the sand 11 that then ejects is by sandblast guide surface 8b guiding, thus sand 11 towards about casting plane from cylinder head bolt to the cross-section water route first half 5a of fovea superior is installed between protuberance 6a, the 6b.Sand-blowing nozzle 10 can enter into water jacket 4a, 4b from floating hole 15a, the 15b of going up of the cooling water that is positioned at water jacket 4a, 4b top.
Below the continuous real wall 3b of portion below be provided with the continuous real wall 3c of portion near lower dead centre, below the continuous real wall 3b of portion and near linearly being formed with between the continuous real wall 3c of portion of lower dead centre below cross-section water route 13.Form the below cross-section water route 13 width up and down wideer than front and back width, than the narrow slit-shaped of the width up and down in cross-section water route 5.
In the above-described embodiment, though cooling water guide surface 8a and sandblast guide surface 8b are respectively to export 7b from slit-shaped inlet 7a and slit-shaped, separately along with left and right directions central part near the continuous real wall 3b of portion in below, its tangent elevation becomes big mode gradually and forms, but the present invention is not limited to this.Fig. 4 represent as shown in Figure 2 incision the sectional view during as the cylinder body of the In-line multi-cylinder engine of other mode of executions.As shown in Figure 4, from slit-shaped inlet 7a and slit-shaped outlet 7b, the left and right directions central part of the continuous downwards separately real wall 3b of portion forms straight line shape and also can respectively for cooling water guide surface 8a and sandblast guide surface 8b.In addition, the constituting component of mode of execution as shown in Figure 4 only is that the shape of cooling water guide surface 8a and sandblast guide surface 8b is different with the difference of the constituting component of mode of execution shown in Figure 2, and other constituting component is identical.Key element identical with Fig. 2 among Fig. 4 is labeled as identical reference character.
Above Shuo Ming In-line multi-cylinder engine, one embodiment of the present invention only, the present invention not only is defined to this mode of execution, can do suitable change in the scope based on the technology of claim protection and implement.
Claims (4)
1. In-line multi-cylinder engine, making the direction of setting up of bent axle is fore-and-aft direction, the width direction that makes cylinder body (1) is a left and right directions, be provided with by a plurality of cylinders (2 of on fore-and-aft direction, arranging at cylinder body (1), 2) the cylinder row that constitute, about these cylinder row, be provided with water jacket (4a, 4b), at adjacent cylinder (2,2) each other, be provided with near the continuous real wall portion (3a) of upper dead center and be positioned at the continuous real wall portion in below (3b) below it, between this is near the continuous real wall portion (3a) of upper dead center and the continuous real wall portion in below (3b), be provided with cross-section water route (5), the slit-shaped of width before and after width was wider than about this cross-section water route (5) formed, water jacket (4a about making by this cross-section water route (5), 4b) be interconnected, cooling water from the water jacket (4a) of a side towards opposite side water jacket (4b) and by in the cross-section water route (5), it is characterized in that
The left and right sides near the continuous real wall portion (3a) of upper dead center be provided with should be connected near the continuous real wall portion (3a) of upper dead center about cylinder head bolt installation protuberance (6a, 6b), by the cylinder head bolt about this protuberance (6a is installed, 6b) make adjacent cylinder (2,2) real wall is connected to each other, cylinder head bolt about this is installed protuberance (6a, when being formed with the cross-section water route first half (5a) 6b), cylinder head bolt about being lower than is installed protuberance (6a, position 6b) is forming cross-section water route Lower Half (5b), the slit-shaped inlet (7a) of a horizontal side of this cross-section water route Lower Half (5b), the following side space of protuberance (6a) is installed across the cylinder head bolt of a horizontal side, from the positive side of the water jacket (4a) of a horizontal side water jacket (4a) in the face of this horizontal side, the slit-shaped outlet (7b) of the horizontal opposite side of cross-section water route Lower Half (5b), the following side space of protuberance (6b) is installed across the cylinder head bolt of horizontal opposite side, from the positive side of the water jacket (4b) of horizontal opposite side water jacket (4b) in the face of this horizontal opposite side
Below the top of continuous real wall portion (3b) be formed with the cooling water guide surface (8a) that enters in the cross-section water route Lower Half (5b), this cooling water guide surface (8a), from slit-shaped inlet (7a), along with uprising near the left and right directions central part of the continuous real wall portion in below (3b), flow into water guide surface (8a) guiding that is cooled of cooling water (9) in the cross-section water route Lower Half (5b) from slit-shaped inlet (7a), thus cooling water (9) towards about cylinder head bolt protuberance (6a is installed, casting plane to the cross-section water route of the fovea superior first half (5a) 6b) flows.
2. In-line multi-cylinder engine according to claim 1, it is characterized in that, below the top of continuous real wall portion (3b) be provided with the sandblast guide surface (8b) that enters in the cross-section water route Lower Half (5b), this sandblast guide surface (8b) is from slit-shaped outlet (7b), along with uprising gradually near the left and right directions central part of the continuous real wall portion in below (3b), from enter into sand-blowing nozzle (10) in the water jacket (4b) to the sand (11) of slit-shaped outlet (7b) transverse injection by sandblast guide surface (8b) guiding, thereby sand (11) towards about cylinder head bolt protuberance (6a is installed, casting plane to the cross-section water route of the fovea superior first half (5a) 6b) sprays.
3. In-line multi-cylinder engine according to claim 1 and 2 is characterized in that, cooling water guide surface (8a) is gone into (7a) from slit-shaped, and along with the left and right directions central part near the continuous real wall portion in below (3b), it is big that its tangent elevation becomes gradually.
4. In-line multi-cylinder engine according to claim 2 is characterized in that, sandblast guide surface (8b) is from slit-shaped outlet (7b), and along with the left and right directions central part near the continuous real wall portion in below (3b), it is big that its tangent elevation becomes gradually.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005245437A JP4388919B2 (en) | 2005-08-26 | 2005-08-26 | Inline multi-cylinder engine |
JP2005245437 | 2005-08-26 |
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CN1920284A CN1920284A (en) | 2007-02-28 |
CN100578004C true CN100578004C (en) | 2010-01-06 |
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CN200610115089A Active CN100578004C (en) | 2005-08-26 | 2006-08-24 | In-line multi-cylinder engine |
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JP (1) | JP4388919B2 (en) |
KR (1) | KR101263953B1 (en) |
CN (1) | CN100578004C (en) |
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CN106762190A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | The jacket structure for water of Multi-cylinder diesel engine cylinder body |
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JP3896301B2 (en) * | 2002-03-26 | 2007-03-22 | 株式会社クボタ | Inter-cylinder water cooling system for water-cooled multi-cylinder engine |
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2005
- 2005-08-26 JP JP2005245437A patent/JP4388919B2/en active Active
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2006
- 2006-08-21 KR KR1020060078814A patent/KR101263953B1/en active IP Right Grant
- 2006-08-24 CN CN200610115089A patent/CN100578004C/en active Active
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Publication number | Publication date |
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CN1920284A (en) | 2007-02-28 |
KR101263953B1 (en) | 2013-05-13 |
KR20070024372A (en) | 2007-03-02 |
JP4388919B2 (en) | 2009-12-24 |
JP2007056821A (en) | 2007-03-08 |
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