CN109899172B - V-shaped 12-cylinder body - Google Patents
V-shaped 12-cylinder body Download PDFInfo
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- CN109899172B CN109899172B CN201910283372.2A CN201910283372A CN109899172B CN 109899172 B CN109899172 B CN 109899172B CN 201910283372 A CN201910283372 A CN 201910283372A CN 109899172 B CN109899172 B CN 109899172B
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Abstract
The invention discloses a V-shaped 12-cylinder block, which comprises: the air cylinder structure comprises a V-shaped top part, a plurality of air cylinders and a plurality of air cylinder sets, wherein the V-shaped top part comprises a plurality of air cylinders which are arranged in a left row and a right row, the air cylinders are provided with air cylinder sleeves, and an included angle between the left row of air cylinders and the right row of air cylinders is 90 degrees; the bottom parts are provided with a plurality of U-shaped reinforcing ribs; each V-shaped reinforcing plate is arranged between two adjacent cylinders, extends to the inner wall of the V-shaped 12-cylinder block along the width direction of the V-shaped 12-cylinder block, and reaches the middle position of the cylinder sleeve; the V-shaped reinforcing plate is provided with two crankcase ventilation channels, the two crankcase ventilation channels are symmetrically arranged, the two crankcase ventilation channels are communicated back and forth along the crankshaft direction, the two crankcase ventilation channels are communicated with each other, and each crankcase ventilation channel is communicated with the crankcase of each cylinder; and an oil-gas separation structure cover plate is arranged above the tail end of one crankcase ventilation channel.
Description
Technical Field
The invention relates to a cylinder block structure, in particular to a V-shaped 12-cylinder block.
Background
NVH, i.e. Noise, Vibration and Harshness (english acronym for Noise, Vibration, Harshness). The NVH performance is a comprehensive index for measuring the manufacturing quality of the automobile, the feeling of an automobile user is most direct, statistical data shows that the problem that the finished automobile has 1/3 faults is related to the NVH problem of the automobile, and therefore, the improvement of the NVH performance of the automobile is one of the research and development focuses of various finished automobile manufacturing enterprises and part enterprises.
The cylinder block of the existing V-shaped high-power engine is provided with a V-shaped part at the upper part and two bottoms, and a cavity is arranged in each bottom, however, the existing V-shaped cylinder block structure, particularly the existing V-shaped 12-cylinder block, is not high in supercharging degree, insufficient in strength and rigidity, and poor in NVH performance.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a V-shaped 12-cylinder block, which can improve the rigidity of a machine body and reduce the deformation of a cylinder sleeve.
To achieve the above object, the present invention provides a V-type 12-cylinder block including: the air cylinder structure comprises a V-shaped top part, a plurality of air cylinders and a plurality of air cylinder sets, wherein the V-shaped top part comprises a plurality of air cylinders which are arranged in a left row and a right row, the air cylinders are provided with air cylinder sleeves, and an included angle between the left row of air cylinders and the right row of air cylinders is 90 degrees; the bottom parts are provided with a plurality of U-shaped reinforcing ribs; each V-shaped reinforcing plate is arranged between two adjacent cylinders, extends to the inner wall of the V-shaped 12-cylinder block along the width direction of the V-shaped 12-cylinder block, and reaches the middle position of the cylinder sleeve; the V-shaped reinforcing plate is provided with two crankcase ventilation channels, the two crankcase ventilation channels are symmetrically arranged, the two crankcase ventilation channels are communicated back and forth along the crankshaft direction, the two crankcase ventilation channels are communicated with each other, and each crankcase ventilation channel is communicated with the crankcase of each cylinder; and an oil-gas separation structure cover plate is arranged above the tail end of one crankcase ventilation channel.
In a preferred embodiment, the oil-gas separation structure cover plate is arranged at the position of the V-shaped included angle of the V-shaped 12-cylinder block, and the oil-gas separation structure cover plate is constructed into a multiple Z-shaped labyrinth structure, and the crankcase blowby gas outlet is arranged in a staggered manner with respect to the labyrinth outlet.
In a preferred embodiment, the number of the plurality of U-shaped reinforcing ribs is three, wherein the height of one U-shaped reinforcing rib is flush with the central height of the crankshaft, one U-shaped reinforcing rib is arranged on the bottom surface of the cylinder body, and the other U-shaped reinforcing rib is arranged on the lower edge of the side window.
In a preferred embodiment, the thickness of the U-shaped reinforcing bars is 10-20mm, the height of the U-shaped reinforcing bars is 20-50mm, and the height of the U-shaped reinforcing bars is 2-3 times the thickness of the U-shaped reinforcing bars.
In a preferred embodiment, the ratio of the height of the crankcase ventilation channel to the cylinder diameter of the cylinder block ranges from 3 to 4, the ratio of the height of the V-shaped reinforcing plate to the cylinder diameter of the cylinder block ranges from 3 to 5, and the ratio of the thickness of the V-shaped reinforcing plate to the cylinder diameter of the cylinder block ranges from 0.05 to 0.1.
In a preferred embodiment, the ratio of the area of the crankcase ventilation passage to the area of the crankcase is in the range of 0.01-0.05.
Compared with the prior art, the V-shaped 12-cylinder block has the following advantages: the V-shaped 12-cylinder body structure is provided with a plurality of V-shaped reinforcing plates and two crankcase ventilation channels, and the cylinder body is also provided with an oil-gas separation structure, so that the separation effect of engine oil and gas of the cylinder body is enhanced, the strength of the engine body is obviously improved through reasonable design parameters, the deformation is smaller, the design is more compact, and the weight reduction is obvious. In addition, the bottom of the cylinder body is provided with three U-shaped reinforcing ribs, so that the rigidity of the skirt portion of the engine body is higher, the deformation is smaller, the strength is further enhanced, and the NVH performance is improved.
Drawings
Fig. 1 is a front view of a V-type 12-cylinder block according to an embodiment of the present invention.
Fig. 2 is a plan view of a V-shaped 12-cylinder block according to an embodiment of the present invention.
Fig. 3 is a sectional view of a V-shaped 12-cylinder block according to an embodiment of the present invention.
Fig. 4 is a partial sectional view of a V-shaped 12-cylinder block according to an embodiment of the present invention.
FIG. 5 is a schematic crankcase ventilation flow diagram in accordance with an embodiment of the invention.
Fig. 6 is a schematic view of a U-shaped reinforcement bar arrangement according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 5, a V-type 12-cylinder block according to a preferred embodiment of the present invention includes: v type top 1, two bottoms 2 and a plurality of V type reinforcing plate 3, wherein, V type top 1 is including being about being two a plurality of cylinders 4 of arranging, and the cylinder is provided with cylinder jacket 5, and wherein the contained angle of two cylinders about is 90. Each bottom 2 is provided with a plurality of U-shaped reinforcing bars 6. Each V-shaped reinforcing plate 3 is disposed between two adjacent cylinders, the V-shaped reinforcing plate 3 extends to the inner wall of the V-shaped 12 cylinder block in the width direction of the V-shaped 12 cylinder block, and the height of the V-shaped reinforcing plate 3 reaches the middle position of the cylinder liner 5 (the liner height is h2 in fig. 3). Preferably, the height of the V-shaped reinforcing plate 3 supports the position of the 8 in the liner, thereby facilitating the enhancement of the rigidity of the cylinder liner and the reduction of the deformation of the cylinder liner. Wherein, two crankcase ventilation passageways 7 have been seted up on the V type reinforcing plate 3, and two crankcase ventilation passageways 7 symmetrical arrangement, two crankcase ventilation passageways 7 communicate each other and link up along the crankshaft direction front and back, and every crankcase ventilation passageway is linked together with the crankcase of every cylinder respectively. An oil-gas separation structure cover plate 9 is arranged above the tail end of one crankcase ventilation channel. The oil-gas separation structure cover plate 9 is fixedly connected with the cylinder body.
In a preferred embodiment, the oil-gas separation structure cover plate 9 is arranged at the V-shaped included angle position of the V-shaped 12 cylinder block, and the oil-gas separation structure cover plate 9 is constructed in a multiple zigzag labyrinth structure, and the crankcase blowby gas outlet is arranged offset from the labyrinth outlet, so that the oil-gas separation effect is enhanced (the arrow direction in fig. 2 is the gas flow direction in the oil-gas separation structure cover plate, and the arrow direction in fig. 5 is the crankcase outlet gas flow direction).
In a preferred embodiment, the ratio of the area of the crankcase ventilation passage 7 to the area of the crankcase is in the range of 0.01-0.05.
In a preferred embodiment, the number of the plurality of U-shaped reinforcing ribs 6 is three, wherein the height of the first U-shaped reinforcing rib is flush with the central height of the crankshaft, the second U-shaped reinforcing rib is arranged on the bottom surface of the cylinder body, and the third U-shaped reinforcing rib is arranged on the lower edge of the side window. Preferably, the thickness of the U-shaped reinforcing rib is 10-20mm, the height of the U-shaped reinforcing rib is 20-50mm, and the height of the U-shaped reinforcing rib is 2-3 times of the thickness of the U-shaped reinforcing rib.
In a preferred embodiment, the ratio of the height H3 of the crankcase ventilation channel to the cylinder diameter of the cylinder block ranges from 3 to 4, the ratio of the height H2 of the V-shaped reinforcing plate to the cylinder diameter of the cylinder block ranges from 3 to 5, and the ratio of the thickness H1 of the V-shaped reinforcing plate to the cylinder diameter of the cylinder block ranges from 0.05 to 0.1. The value range of the ratio of the width W1 of the cylinder body skirt to the cylinder diameter is 3-4, and the height of the U-shaped ribs is 2-5 times of the thickness of the cylinder body skirt. The ratio of the gantry height H5 to the cylinder diameter at the bottom is 1-2, and the ratio of the gantry width W2 to the cylinder diameter is 2-3.
In a preferred embodiment, the ratio of the cylinder block height H1 to the cylinder diameter is in the range of 4-5, and the ratio of the V-shaped cylinder block width W3 to the cylinder diameter is in the range of 6-8.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (3)
1. A V-type 12-cylinder block, characterized in that the V-type 12-cylinder block comprises:
the air cylinder structure comprises a V-shaped top part, a plurality of air cylinders and a plurality of air cylinder sets, wherein the V-shaped top part comprises a plurality of air cylinders which are arranged in a left row and a right row, the air cylinders are provided with air cylinder sleeves, and the included angle between the left row and the right row of the air cylinders is 90 degrees;
the bottom parts are provided with a plurality of U-shaped reinforcing ribs; and
a plurality of V-shaped reinforcing plates, each of which is arranged between two adjacent cylinders, wherein the V-shaped reinforcing plates extend to the inner wall of the V-shaped 12-cylinder block along the width direction of the V-shaped 12-cylinder block, and the height of each V-shaped reinforcing plate reaches the middle position of the cylinder sleeve;
the V-shaped reinforcing plate is provided with two crankcase ventilation channels, the two crankcase ventilation channels are symmetrically arranged, the two crankcase ventilation channels are communicated with each other in the front-back direction along the crankshaft direction, and each crankcase ventilation channel is communicated with the crankcase of each cylinder; an oil-gas separation structure cover plate is arranged above the tail end of one crankcase ventilation channel;
wherein the oil-gas separation structure cover plate is arranged at the position of a V-shaped included angle of the V-shaped 12-cylinder block, the oil-gas separation structure cover plate is constructed into a multiple Z-shaped labyrinth structure, and a crankcase blowby gas outlet and a labyrinth outlet are arranged in a staggered manner;
the number of the U-shaped reinforcing ribs is three, the height of one U-shaped reinforcing rib is flush with the central height of the crankshaft, one U-shaped reinforcing rib is arranged on the bottom surface of the cylinder body, and the other U-shaped reinforcing rib is arranged at the lower edge of the side window;
the value range of the ratio of the height of the crankcase ventilation channel to the cylinder diameter of the cylinder block is 3-4, the value range of the ratio of the height of the V-shaped reinforcing plate to the cylinder diameter of the cylinder block is 3-5, and the value range of the ratio of the thickness of the V-shaped reinforcing plate to the cylinder diameter of the cylinder block is 0.05-0.1.
2. The V-type 12 cylinder block according to claim 1, wherein the thickness of the U-shaped bead is 10 to 20mm, the height of the U-shaped bead is 20 to 50mm, and the height of the U-shaped bead is 2 to 3 times the thickness of the U-shaped bead.
3. The V-type 12-cylinder block as set forth in claim 1, wherein a ratio of an area of the crankcase ventilation passage to an area of the crankcase ranges from 0.01 to 0.05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283372.2A CN109899172B (en) | 2019-04-10 | 2019-04-10 | V-shaped 12-cylinder body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283372.2A CN109899172B (en) | 2019-04-10 | 2019-04-10 | V-shaped 12-cylinder body |
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| Publication Number | Publication Date |
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| CN109899172A CN109899172A (en) | 2019-06-18 |
| CN109899172B true CN109899172B (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910283372.2A Active CN109899172B (en) | 2019-04-10 | 2019-04-10 | V-shaped 12-cylinder body |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110714851A (en) * | 2019-12-02 | 2020-01-21 | 广西玉柴机器股份有限公司 | Cylinder block with composite frame window structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59100910U (en) * | 1982-12-24 | 1984-07-07 | 本田技研工業株式会社 | Blow-by gas reduction device for V-type internal combustion engine |
| US4603673A (en) * | 1984-03-03 | 1986-08-05 | Mazda Motor Corporation | Breather device in internal combustion engine |
| JPS60184916A (en) * | 1984-03-03 | 1985-09-20 | Mazda Motor Corp | Breather for v-engine |
| EP1026372B1 (en) * | 1999-02-01 | 2004-09-22 | Honda Giken Kogyo Kabushiki Kaisha | Engine crankcase ventilation system including a blowby gas passage defined between crankcase members |
| CN109139284A (en) * | 2018-11-09 | 2019-01-04 | 广西玉柴机器股份有限公司 | The cylinder block of V-type engine |
| CN209724501U (en) * | 2019-04-10 | 2019-12-03 | 广西玉柴机器股份有限公司 | A kind of twin-six cylinder block |
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