CN1026607C

CN1026607C - Device for improving integrated performance of motorcycle by ordering air intake of engine

Info

Publication number: CN1026607C
Application number: CN 91106842
Authority: CN
Inventors: 王日光
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-08
Filing date: 1991-11-08
Publication date: 1994-11-16
Anticipated expiration: 2006-11-08
Also published as: CN1060337A

Abstract

The present invention relates to a device for improving the all-round performance of a motorcycle by smoothing gas intake turbulence of an engine, which comprises a pressure bearing container of definite volume which can be automatically changed, and the pressure bearing container is provided with a communicating pipe connected with a gas inlet of the motorcycle through the communicating pipe. The device can smooth the gas intake of an engine, the all-round performance of the motorcycle is improved., the oil consumption can be saved by about 30%, waste exhaust on idling of a two-stroke engine is greatly reduced, acceleration performance and maximum speed are obviously improved, and the lubricating performance of the engine is improved; the service lives of a crank and connecting rod assembly and a carburetor are extended by more than one time, the reliability of the engine is obviously improved, the speed range of each gear is improved, and the low-speed performance is greatly improved.

Description

Device for improving integrated performance of motorcycle by ordering air intake of engine

The present invention relates to a kind of disorderly device that improves the motorcycle combination property of engine charge of making in order.

The existing homemade Eastern Europe that comprises is produced the import motorcycle and is extensively had shortcomings such as oil consumption height, acceleration performance is bad, highest speed is lower, two-stroke motorcycle also has the shortcoming of idling blowdown severe overweight, oil consumption＞7L/100KM as 750 family cars, F-Zero≤95KM, oil consumption 〉=the 2.8L/100KM of happiness 250, F-Zero is 90～95KM, and idling disposal of pollutants HC value is more than 7000PPN.Homemade the most well-known happiness 125, five sheep 125, oil consumption is between 2.2～2.3L/100KM, F-Zero also is no more than 95KM, and southern 125 oil consumption are higher, and why much more so vehicle oil consumption all higher? basic reason is the engine charge disorder, concrete manifestation is as follows: 1, under the natural inflow condition, engine charge at the end, it is a lot of that the mixed pressure in the cylinder all is lower than barometric pressure, generally between 0.7～0.9 barometric pressure; When 2, four stroke engine valve overlap, intake valve are closed late and during the two stroke engine descent of piston, all unavoidably produce mixed gas and " fall to spray " phenomenon, cause fuel oil waste, Carburetor weares and teares in advance and oil consumption is risen, wear debris makes its wearing and tearing speed again after sucking motor; 3, it is the unexpected turn-off transient of engine intake valve, the high speed steam flow that should enter cylinder is opened circuit suddenly, and " fall to spray " to the carburetor air direction, spray to atmosphere by empty filter, and in a twinkle promptly extremely inlet stream cause retardation, and the above-mentioned phenomenon of spraying of two-stroke piston valve motor can cause that also the third falls to spray, promptly in the moment of taking a breath or the purging mouth is opened, when the precompressed mixed pressure in the crankcase is defeated by in the cylinder waste gas when pressing, the waste gas of High Temperature High Pressure will spray into crankcase by ventilation or purging mouth, burn out desirable mixed gas, produce a large amount of carbon distributions, cause power to descend, acceleration performance is poor, the low speed shakiness, the crankcase carbon deposit, engine life subtracts greatly, and about more than 20 ten thousand of this car whole nation Annual output, therefore the fuel oil waste that causes and the seriousness of environmental pollution are well imagined, return the user and bring the tremendous economic loss, Japanese patent application " clear 59-131724(A) " number discloses a kind of variable volume knock out drum that is used for the four-stroke motor car engine, it directly is connected between Carburetor and the intake valve, its effect is when preventing the motor car engine higher load condition, the excessive demonstration of elaterometer, the low-load worker time spent, the sensitivity that improves motor.

The objective of the invention is the defective at above-mentioned motorcycle, a kind of engine charge disorder of making in order is provided, utilize " falling to spray " super charge, the motor delivery ratio is increased about 0.4, to reduce fuel consume, pollution abatement improves the motorcycle combination property.

The objective of the invention is to realize in the following manner, the present invention includes one has a constant volume and pressure resistant vessel that change its volume size automatically, on this pressure resistant vessel there is connecting tube, this pressure resistant vessel is connected for humorous mouthful by newly driving controlled atmosphere on the intake duct between connecting tube and motorcycle carburetor and the intake valve into, the pressure resistant vessel volume is 0.9～1.1 times of institute's mounted engine volume, it is ± 3～± 10% that volume changes weight range, to make the disorderly phenomenon of engine charge in order.

Advantage of the present invention is as follows:

1. save fuel oil greatly, fuel saving ratio is about 30%;

2. reduce the idling blowdown greatly, can make two being lower than GB with the car blowdown towards motor;

3. obviously improve acceleration performance and highest speed;

4. improve the engine lubrication performance, from the sample car use condition, crankshaft rod assembly and Carburetor life-span can prolong more than 1～2 times;

5. the engine on reliability obviously improves, and improves each gear speed range, and low-speed performance also has improvement greatly;

6. eliminated Carburetor disagreeable strike seat sound;

7. improved startability, made motorcycle be more conducive to the plateau section and use;

8. how motor has also cleaned, and empty filter back has not had greasy dirt extremely;

9. air inlet tuning unit is simple in structure, and Installation and Debugging can need not maintained at a glance for a long time.

Embodiments of the invention are provided by following accompanying drawing, Fig. 1, the 2nd is equipped with engine operation situation schematic representation of the present invention, Fig. 3,4,5,6,7,8 is respectively a negative pressure type, the structure principle chart of free piston type, ripple shell type, pressure bladder formula, elasticity membrane type, airtight piston type tuning unit is below in conjunction with the description of drawings embodiments of the invention.

Embodiment 1, with reference to Fig. 1, at the crankcase of two stroke engine and the adapter of Carburetor (4) is newly to open tuning mouthful an of air inlet (5) on the intake duct, the present invention is that the pressure resistant vessel (1) of air inlet tuning unit was connected with tuning mouthful (5) by the connecting tube (3) on it, pressure resistant vessel is a flat box, make with plastics or sheetmetal, tight cover one elasticity prepressing device (2) outside pressure resistant vessel (1), make this vessel volume at the beginning for minimum, whole or the local parcel pressure resistant vessel of elasticity prepressing device all can, need only pressure resistant vessel can appropriateness changing its volume size automatically gets final product, the pressure resistant vessel volume that is contained in this device on 125 motorcycles is 113～138 milliliters, the volume that is installed on 250 motorcycles is 225～275 milliliters, be contained in that volume is 340～410 milliliters (single cylinders) on 750 motorcycles, best results when volume is equivalent to volume of cylinder, its working procedure be motor in, during low-speed running, the mixed gas that produces when unavoidable cause " falls to spray " when coming out from suction port, these mixed gass no longer are sprayed onto the external world, but enter in the container of the present invention, and make it to expand, and open moment of air inlet when intake valve or piston valve, the gas in this container enters the cylinder float chamber suddenly with the mixed gas from Carburetor under the container pressure effect; For good condition has been created in the motor acting, so move in circles, appearance capsule device of the present invention is stretched and relaxed, very harmony made engine intake process in order, improved delivery ratio, thereby improved the motor combination property, through Chinese Motorcycle Development quality Zhuzhou supervision and inspection to the happy 250A type car actual measurement of present embodiment is housed, highest speed improves 9%, starting is quickened to improve 32%, fuel consume reduces by 49%, and the lowest economic oil consumption is 1.531/ hundred kms, and the idling blowdown can effectively reduce, acceleration performance obviously improves, F-Zero reaches 105KM, and former car F-Zero can not reach 95KM, and other performances all have improvement.See Appendix 2.For remedying the oxygen content of " falling to spray " mixed gas, can on pressure resistant vessel, increase a band filter layer tonifying Qi hole (25).

Embodiment 2, with reference to Fig. 3, present embodiment is the negative pressure type tuning unit, its pressure resistant vessel is a piston cylinder (7), following siphunculus (8) in succession is divided into upper and lower two-part with the piston (6) that spring (10) links to each other with the cylinder chamber with the top, and top links to each other with a sourceof negative pressure by the mouth of bleeding (11) and becomes negative pressure chamber (9), change by negative pressure chamber, spring, piston position, can change volume size easily and work.

Embodiment 3, referring to Fig. 4, present embodiment is the piston type tuning unit, its pressure resistant vessel is a piston cylinder (15), following siphunculus (16) in succession is divided into upper and lower two-part with the piston (14) that spring (13) links to each other with the cylinder chamber with the top, and two ventilation mouths (12) are equipped with at the top, top is communicated with atmosphere, change the change volume size by spring, piston position and work.

Embodiment 4, referring to Fig. 5, present embodiment is a ripple shell type tuning unit, its pressure resistant vessel is for being contained in the oil resistant radiation fins (19) in the housing (20), running-on is right after on housing (20) bottom connecting tube (21), the end, linked to each other by soft drawn spring (17) with connecting tube in the cover, and cover outer bottom and shell push up and linked to each other by tightrope (18), by extension spring change radiation fins volume size and work.

Embodiment 5, and referring to Fig. 6, present embodiment is a pressure bladder formula tuning unit, its pressure resistant vessel is a cylindricality cylinder body (23), cylinder bottom is connected to connecting tube (24), have in the cylinder oil resistant, with the bonding elasticity gas (22) of cylinder bottom portion, work by the bag volume size variation.

Embodiment 6, referring to Fig. 7, present embodiment is an elasticity membrane type tuning unit, its pressure resistant vessel is the cylindrical shell (29) of a top with oil resistant elastic membrane (26) sealing, the cylindrical shell bottom is connected to connecting tube (30), elastic membrane position during (27) for work, (28) are seal closure, change volume size by the elastic membrane change in location and work.

Embodiment 7, referring to Fig. 8, present embodiment is airtight piston type tuning unit, its pressure resistant vessel is a piston cylinder (34), with the piston (33) that tightrope (31) links to each other the cylinder chamber is divided into upper and lower two-part with the top, top is sealed chamber (32), and the bottom is connected to connecting tube (35), changes the change volume by airtight piston position and works.

Claims

A kind of disorderly device that improves the motorcycle combination property of engine charge of making in order, comprise one have a constant volume, change the pressure resistant vessel of its volume size automatically, it is characterized in that on the described pressure resistant vessel there is connecting tube, described device newly drives controlled atmosphere into by connecting tube and intake duct between motorcycle carburetor and the intake valve and is connected for humorous mouthful, described pressure resistant vessel volume is 0.9～1.1 times of institute's mounted engine volume, and volume change amount is ± 3～10%.