CN102003281A - V-shaped double-cylinder diesel motor - Google Patents
V-shaped double-cylinder diesel motor Download PDFInfo
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- CN102003281A CN102003281A CN 201010298546 CN201010298546A CN102003281A CN 102003281 A CN102003281 A CN 102003281A CN 201010298546 CN201010298546 CN 201010298546 CN 201010298546 A CN201010298546 A CN 201010298546A CN 102003281 A CN102003281 A CN 102003281A
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- diesel engine
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- diesel motor
- connecting rod
- cylinder diesel
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Abstract
The invention belongs to the field of motor, and in particular relates to a V-shaped air cooled double-cylinder diesel motor, which comprises a diesel motor crankshaft, a connecting rod, a valve and cylinders. The V-shaped air cooled double-cylinder diesel motor is characterized in that the diameter of the crankshaft, i.e. the distance between the rotation center of the crankshaft and a crank pin, is 33 mm to 36mm. Compared with similar motors, the length of the connecting rod is shortened by 15 mm to 20mm, and the body of the diesel motor and the cylinders are casted into a whole structure by using an aluminium alloy material through high pressure. Compared with similar diesel motors, the whole height of the V-shaped air cooled double-cylinder diesel motor is reduced so as to reduce the volume and the weight of the diesel motor, and the mass density of the V-shaped air cooled double-cylinder diesel motor reaches about 3.7 kilograms each kilowatt.
Description
Technical field
The present invention relates to engine art, refer in particular to a kind of V-type double cylinder wind cooling diesel engine.
Background technique
Diesel engine is an internal-combustion engine of making fuel with diesel oil.Diesel engine belongs to compression ignition engine, and it often is called as diesel engine with main inventor Diesel's name again.Diesel engine sucks the air in the cylinder of diesel engine in when work, because of the motion of piston is subjected to the compression of higher degree, reaches 500～700 ℃ high temperature.Then fuel oil is sprayed in the high temperature air with vaporific, mix forming inflammable mixture with high temperature air, automatic fire burns.The energy that discharges in the burning promotes piston and is converted to the mechanical work of rotation by connecting rod and bent axle on piston-top surface.Diesel engine has the high remarkable advantage of the thermal efficiency, and its application area is more and more wider.Along with the raising of reinforcing degree, the weight of diesel engine specific power also significantly reduces.But present domestic LD-diesel field industrial pattern confusion and product level are not high, are not widely used and popularize.And diesel engine is not also really realized light on market at present, and light duty engine generally uses petrol engine, and the homogeneous compression-ignition technology generally is used for large-scale diesel engine.Though diesel engine fuel saving and having the longer life-span more with respect to petrol engine, but but there is not really popular mistake on passenger car, one of reason is exactly that structure is compact inadequately, does not realize defectives such as light because all there is relatively heaviness in diesel engine in the market.Though some researchs improve the reach structure and the design etc. of diesel oil, also exist some defectives.Realized automatic control as patent 02125943.7 by oil gear, patent 200820031191.8 has improved the speed governing of diesel engine, though they have all improved some performance of diesel engine, but still exists heavy, structure is not compact, does not make problems such as diesel engine light.
Summary of the invention
The present invention is directed to above problem and designed a kind of V-type two cylinder diesel engine, be single row design, two cylinder head angles are 90 °.As shown in fig. 1.This invention has really realized the light of diesel engine by short stroke, short connecting rod, short piston and aluminum alloy cast inblock design.What it adopted is air cooling system, premixed combustion, homogeneous compression-ignition technology.This diesel engine comprises bent axle, connecting rod, piston and cylinder.It is characterized in that: the crank throw of described bent axle, promptly the crankshaft rotating center is 33mm-36mm to the distance of crankpin, as shown in Figure 2.The length of described connecting rod is 116～120mm, shortens 15mm-20mm than similar diesel engine.The size of described piston is also corresponding to be reduced.Described diesel engine descends to some extent than the whole height of similar diesel engine, makes diesel engine volume and weight descend to some extent, and its specific mass has reached 3.7 kilograms/kilowatt.
The present invention is characterised in that the design of short stroke, short connecting rod, short piston makes diesel engine really realize light.In theory, the diesel engine machinery efficient that crank throw reduces to make reduces, and influences the whole efficiency of diesel engine.But the present invention makes the combustion efficiency of LD-diesel improve by adopting premixed combustion and homogeneous compression-ignition technology.Its fuel oil consumption has reached below the 270g/kwh.Thereby find the equinoctial point of diesel engine machinery efficient and combustion efficiency.And guaranteed the whole efficiency of diesel engine.In this invention crankshaft of diesel engine, connecting rod, piston are optimized design, crankshaft stroke is shortened.Chosen optimum crank throw by theoretical calculation and analysis of experiments, scope is between 33mm-36mm.Because crank throw reduces, length of connecting rod is corresponding to be reduced.By the gas force on the piston head of bearing on the connecting rod, piston set reciprocal inertia force and connecting rod itself lateral inertia forces when wrist pin is done the speed change swing is optimized analysis, further shortened the size of connecting rod then.Make the size of connecting rod shorten 15mm-20mm than similar diesel engine.Thereby piston size also reduces to some extent.Thereby make complete machine structure compact more, greatly reduce the complete machine height, alleviated the complete machine quality.And diesel-engine body and cylinder adopt aluminum alloy material to become an overall structure through squeeze casting in this invention.Its specific mass is further reduced, reached about 3.7 kilograms/kilowatt.More than design the design that has just formed short stroke, short connecting rod, lacked piston, realized the light of diesel engine.Among the present invention by the design of rational crank throw and combining of premixed combustion, homogeneous compression-ignition technology, realized under the prerequisite that does not reduce the diesel engine whole efficiency, make described diesel engine structure compact more, highly reduce, specific mass reduces, thereby realize the light of diesel engine, make LD-diesel that the potentiality of popularizing in market arranged.Avoided also that the excessive body that causes of crank throw is excessive, energy waste and too small and problems such as mechanical efficiency reduction that cause.
Description of drawings
Fig. 1 is novel V-type two cylinder diesel engine structural representation.
Fig. 2 is the structural representation with bent axle of short stroke design.
1 piston, 2 cylinders, 3 connecting rods, 4 bent axles, 5 crank pins among the figure.
Embodiment
The main composition parts of this diesel engine have bent axle, connecting rod, piston and cylinder.
This diesel engine is designed to V-type twin-tub structure, and two cylinder head angles are 90 °.As shown in fig. 1.And select for use and be air cooling system, premixed combustion, homogeneous compression-ignition technology.
Crank throw is designed to 35mm, and as shown in Figure 2, thereby connecting rod and piston size also reduce to some extent, make this diesel engine become the integral body of a compact structure.Thereby under the prerequisite that guarantees Efficiency of Diesel Engine, greatly reduce the complete machine height.And body and cylinder adopt aluminum alloy material to become an overall structure through squeeze casting.Make this diesel engine weight/power ratio reach 3.7 kilograms/kilowatt by above design, really realized the light of diesel engine.
Claims (5)
1. V-type two cylinder diesel engine, comprise bent axle (4), connecting rod (3), piston (1) and cylinder (2), it is characterized in that: the crank throw of described bent axle (4), be the crankshaft rotating center to the distance of crankpin (5) be 33mm-36mm, the length of described connecting rod (3) is 116～120mm, shortens 15mm-20mm than similar diesel engine.
2. a kind of V-type two cylinder diesel engine as claimed in claim 1 is characterized in that: described diesel-engine body and cylinder (2) adopt aluminum alloy material to become an overall structure through squeeze casting.
3. a kind of V-type two cylinder diesel engine as claimed in claim 1 is characterized in that: two cylinder head angles of described cylinder (2) are 90 °.
4. a kind of V-type two cylinder diesel engine as claimed in claim 1 is characterized in that: the specific mass of described diesel engine has reached 3.7 kilograms/kilowatt.
5. a kind of V-type two cylinder diesel engine as claimed in claim 1 is characterized in that: described diesel engine using premix homogeneous compression burning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298546 CN102003281A (en) | 2010-10-08 | 2010-10-08 | V-shaped double-cylinder diesel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298546 CN102003281A (en) | 2010-10-08 | 2010-10-08 | V-shaped double-cylinder diesel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003281A true CN102003281A (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010298546 Pending CN102003281A (en) | 2010-10-08 | 2010-10-08 | V-shaped double-cylinder diesel motor |
Country Status (1)
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| CN (1) | CN102003281A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62161453A (en) * | 1986-01-13 | 1987-07-17 | Honda Motor Co Ltd | Production of closed deck type cylinder block with wet liner |
| CN1184887A (en) * | 1996-04-12 | 1998-06-17 | 杨建华 | Light wt. diesel engine |
| CN2432342Y (en) * | 2000-05-16 | 2001-05-30 | 洪里荣 | Double cylinder V shape air-cooled diesel engine |
| CN2523966Y (en) * | 2002-02-06 | 2002-12-04 | 广西贵港动力机器有限责任公司 | Unitary crankshaft diesel engine-175 with range less than 70mm |
| CN201420600Y (en) * | 2009-03-26 | 2010-03-10 | 浙江太阳股份有限公司 | Integral single-cylinder diesel engine with 68 millimeter stroke and 80 millimeter cylinder diameter |
-
2010
- 2010-10-08 CN CN 201010298546 patent/CN102003281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62161453A (en) * | 1986-01-13 | 1987-07-17 | Honda Motor Co Ltd | Production of closed deck type cylinder block with wet liner |
| CN1184887A (en) * | 1996-04-12 | 1998-06-17 | 杨建华 | Light wt. diesel engine |
| CN2432342Y (en) * | 2000-05-16 | 2001-05-30 | 洪里荣 | Double cylinder V shape air-cooled diesel engine |
| CN2523966Y (en) * | 2002-02-06 | 2002-12-04 | 广西贵港动力机器有限责任公司 | Unitary crankshaft diesel engine-175 with range less than 70mm |
| CN201420600Y (en) * | 2009-03-26 | 2010-03-10 | 浙江太阳股份有限公司 | Integral single-cylinder diesel engine with 68 millimeter stroke and 80 millimeter cylinder diameter |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110406 |