CN2196692Y - Diesel engine with reciprocating booster - Google Patents
Diesel engine with reciprocating booster Download PDFInfo
- Publication number
- CN2196692Y CN2196692Y CN 94207850 CN94207850U CN2196692Y CN 2196692 Y CN2196692 Y CN 2196692Y CN 94207850 CN94207850 CN 94207850 CN 94207850 U CN94207850 U CN 94207850U CN 2196692 Y CN2196692 Y CN 2196692Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- diesel engine
- main bearing
- model
- utility
- 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.)
- Expired - Fee Related
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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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Supercharger (AREA)
Abstract
The utility model relates to a diesel engine with a reciprocating booster, which belongs to a reciprocating internal combustion engine. The utility model is characterized in that two kinds of air cylinders which have different diameters and use vertical lines as axial lines are arranged on one or a plurality of vertical lines of the axial line of a crankshaft main bearing, wherein, the diameter of the cylinder which has a farther distance to the axial line of the crankshaft main bearing is smaller, and the diameter of the cylinder which has a closer distance to the axial line of the crankshaft main bearing is larger. The cylinder with a small diameter is a combustion cylinder, and the cylinder with a big diameter is a pressurization cylinder. The utility model has the advantages that the booster has high compression efficiency; the pressurization ratio can be selected within a large range. The utility model is suitable for the diesel engines with various power ranges.
Description
A kind of diesel engine with pressurized machine belongs to reciprocating internal combustion engine.
Existing diesel engine, its supercharging mode mainly contain waste gas supercharging and Mechanical Driven supercharging.These two kinds of supercharging modes all have following common drawback.(1) is difficult to reach than high supercharging pressure level.(2) compressed efficient is low, causes air serious intensification after being compressed, make supercharging after the air density increasing amount reduce, be to improve air density after the supercharging, the higher type of pressure ratio must be provided with the cooler charge air cooling.
The purpose of this utility model is to provide a kind of having than high supercharging pressure level, and the diesel engine of the higher reciprocating-type supercharger of compression efficiency.
Summary of the invention of the present utility model is as follows: on one of crankshaft of diesel engine main bearing axis or some the vertical lines, have diameter different be two kinds of cylinders of axis with this vertical line, wherein less from crank spindle bearing axis cylinder bore far away, it is bigger to hold the nearer cylinder bore of axis from the bent axle master.Oil sprayer and suction port, relief opening are arranged on little cylinder and the cylinder cap, its cylinder cap at cylinder away from crank spindle bearing axis end.This cylinder is a deflagrating jar.On the big cylinder suction port and relief opening are arranged, its relief opening links to each other by the suction port of pipeline and deflagrating jar.This cylinder is a pressurized cylinder.The piston of diesel engine is a stepped, and its small end and little cylinder match, and big end and big cylinder match.When the step piston when moving away from the cylinder head direction, the pressurized cylinder internal air pressure is lower than the outer air pressure of pressurized cylinder suction port, air enters pressurized cylinder by the suction valve on the pressurized cylinder suction port.When piston when the cylinder head direction is moved, the pressurized cylinder internal pressure raises, suction valve cuts out, when air pressure continues to rise to the air pressure that is higher than the pressurized cylinder exhaust duct, the pressurized cylinder outlet valve is opened, compressed air enters in the deflagrating jar admission line, and when the deflagrating jar air inlet open, compressed air enters and is used in the burning work done in the deflagrating jar.
The utlity model has simple in structure, compressed efficient height, the characteristics that pressure ratio can be selected in a big way are suitable for making the diesel engine of various power ranges.
Accompanying drawing is a structural representation of the present utility model.The main bearing axis both sides of bent axle (7) are distributed with to horizontal symmetrical two cylinder block (5), and deflagrating jar and pressurized cylinder are all arranged on each cylinder block.Combined piston (4) is formed by two step piston in combination that match with two cylinder block respectively together, and the part that itself and deflagrating jar cooperate is at the two ends of combined piston.There are two precision-machined surfaces perpendicular to the combined piston axis at the combined piston middle part.The distance on two planes is slightly larger than the diameter of the roller (6) that is loaded on the crankshaft crank bearing.When being sandwiched in roller between these two precision-machined surfaces with crankshaft crank during around the crankshaft main bearing rotational, piston is promptly with rotation back and forth operation in cylinder of bent axle.Suction valve (2) and outlet valve (3) are housed on the pressurized cylinder cylinder cap.For making the deflagrating jar suction pressure more stable, on its admission line, connect surge tank (8), the waste gas of deflagrating jar is discharged by outlet pipe (10), and oil sprayer (1) is contained in deflagrating jar and covers.0 is the crankshaft main bearing axial location.0
1Be the crankshaft crank axial location, suction tude (9) links to each other with air-strainer.
For making complete machine that higher mechanical efficiency be arranged, adopt two-stroke 2 pressurized cylinders shown in the drawings, 2 deflagrating jars not to have connecting rod flat opposed form, like this, when the pressurized cylinder of one of them deflagrating jar and homonymy thereof is in compression stroke, the major part of two cylinder compressive forcees is in gaseous-pressure in the deflagrating jar of power stroke by the bent axle opposite side and the inertial force of piston directly provides, and, having significantly reduced the mechanical friction loss without the bent axle transmission, mechanical efficiency is higher than the connecting bar and crankshaft formula.The excessive specific fuel consumption that causes of ratio that accounts for deflagrating jar indicated power for the power that does not make pressurized cylinder consumption is too high, simultaneously make complete machine that higher specific power is arranged again, pressure ratio is selected in about 4, and this moment, deflagrating jar and plenum diameter ratio were selected in about 1:2.4, and the deflagrating jar exhaust back pressure is selected in about 0.4MPa.
Claims (4)
1, a kind of diesel engine that has reciprocating-type supercharger, it is characterized in that: on one of crankshaft of diesel engine main bearing axis or the some vertical lines, have diameter different be two kinds of cylinders of axis with this vertical line, wherein less from crankshaft main bearing axial line distance cylinder bore far away, another cylinder bore is bigger.
2, a kind of diesel engine of taking to complex supercharger according to claim 1 is characterized in that, on its less cylinder oil sprayer and suction port is arranged, and relief opening has suction port and relief opening on the bigger cylinder.
3, according to claim 1,2 described a kind of diesel engines of taking to complex supercharger, it is characterized in that the relief opening of its big cylinder links to each other by pipeline with the suction port of little cylinder.
4, according to claim 1,2,3 described a kind of diesel engines of taking to complex supercharger, it is characterized in that: the big end that is scalariform piston is loaded in the big cylinder, and small end is loaded in the little cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207850 CN2196692Y (en) | 1994-01-31 | 1994-01-31 | Diesel engine with reciprocating booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207850 CN2196692Y (en) | 1994-01-31 | 1994-01-31 | Diesel engine with reciprocating booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2196692Y true CN2196692Y (en) | 1995-05-10 |
Family
ID=33826054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94207850 Expired - Fee Related CN2196692Y (en) | 1994-01-31 | 1994-01-31 | Diesel engine with reciprocating booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2196692Y (en) |
-
1994
- 1994-01-31 CN CN 94207850 patent/CN2196692Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |