CN1553048A - Lubricating system of free rotary fuor-travel gasoline apparatus - Google Patents
Lubricating system of free rotary fuor-travel gasoline apparatus Download PDFInfo
- Publication number
- CN1553048A CN1553048A CNA2003101178249A CN200310117824A CN1553048A CN 1553048 A CN1553048 A CN 1553048A CN A2003101178249 A CNA2003101178249 A CN A2003101178249A CN 200310117824 A CN200310117824 A CN 200310117824A CN 1553048 A CN1553048 A CN 1553048A
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- chamber
- gasoline engine
- crankcase
- pumping cavity
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
A free rotary four-stroke gasoline engine lubricating system consists of a crankshaft, a crankshaft casing, a lubricant chamber, gears, and gearbox. An eccentric sleeve is installed on the crankshaft near the lubricant chamber, and connected with the oil-supplying plunger of the lubricant pump with outlet connected with oil pipeline. The first one-way valve is installed on the lower partition plate of the crankshaft casing and is connected with oil frog channel. A cyclic oil pipeline is arranged below the lubricant chamber and connected with the crankshaft casing. A second one-way valve is installed on the upper partition plate of the crankshaft casing. The said lubricating system is compact in size, works reliably, costs low, can be used for either small IC engines or middle or large machines, and can make four stroke engines running at any directions of 360 deg.
Description
Technical field
The present invention relates to a kind of lubrication system of power plant.
Background technique
The application of four-stroke miniature gasoline engine enlarges day by day both at home and abroad at present, but the lubricant oil of four-stroke gasoline engine all accumulates in the crankcase chamber bottom usually, when the motor angle of inclination is excessive, the lubricant oil of crankcase chamber bottom will run off, rely on the lubricated motor of oil pump, the filler opening of oil pump is inhaled less than lubricant oil, rely on connecting rod to get rid of the motor of oil lubrication, connecting rod also gets rid of less than lubricant oil, the motor friction pair that need lubricate will can not get required lubricant oil like this, cause motor not run well, therefore, motor can only be worked in the vertical position or in a less angular range.For the ask for something motor can both proper functioning in any one orientation of 360 degree scopes occasion, as chain saw, sheep shearer etc., the application of four-stroke gasoline engine is restricted.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of compact structure to be provided, reliable operation, and cost is low, the four-stroke gasoline engine lubrication system that four-stroke gasoline engine can both be run well in any orientation of 360 degree.
The present invention is achieved through the following technical solutions:
A kind of free rotary four-stroke gasoline engine lubrication system, comprise bent axle, crankcase chamber, the oil chamber, gear and gear chamber, the end diameter of axle that described bent axle is positioned at oil chamber's part is provided with eccentric bushing, described eccentric bushing is connected with the feeding plunger of lubricating pump, the oil outlet of described lubricating pump is connected with oil supply pipeline, the lower clapboard of described crankcase is provided with first one-way valve, described first one-way valve is connected with the mist of oil circulation canal, the bottom of described oil chamber is provided with circulating pipe and communicates with crankcase chamber, and the upper clapboard of described crankcase is provided with second one-way valve.
Described lubricating pump comprises feeding plunger, plunger guide bush, be provided with pumping cavity in the described plunger guide bush and go out oil pocket, the top of described feeding plunger is a pumping cavity, be provided with piston spring in the described pumping cavity, described pumping cavity and go out to be provided with UNICOM's oilhole between the oil pocket describedly goes out in the oil pocket to be provided with outlet valve and oil outlet valve spring, and described oil outlet valve spring upper end is provided with the oil outlet valve spring seat, the wall of described pumping cavity is provided with filler opening, and the described wall that goes out oil pocket is provided with oil outlet.
Described UNICOM oilhole is circular, and described outlet valve is circular valve block.
Described filler opening and oil outlet are circular.
The present invention has following beneficial effect:
1. lubrication system architecture compactness of the present invention is skillfully constructed, reliable operation, cost is low, promptly can be used on the compact internal combustion engine, also can be used for medium-sized or heavy mechanical equipment on.
2. four-stroke gasoline engine lubrication system of the present invention can make four-stroke gasoline engine can both run well in any orientation of 360 degree, has enlarged the application area of four-stroke gasoline engine.
Description of drawings
Fig. 1 is a lubrication system sectional drawing of the present invention;
Fig. 2 is a lubrication system schematic representation of the present invention;
Fig. 3 is the lubricating pump sectional drawing in the lubrication system of the present invention.
Among the figure:
1. mist of oil circulation canal 2. cylinder head 3. pistons 4. second one-way valves 5. lubricating pumps
6. oil outlet 7. oil supply pipelines 8. filler openings 9. eccentric bushings 10. bent axles
11. circulating pipe 12. oil chambers 13. crankcase chamber, 14. drainback passages
15. valve cage 16. rocking arms 17. valves 18. camshafts 19. connecting rods
20. crankshaft gear 21. gear chamber 22. first one-way valves 23. go out oil pocket 24. pumping cavities
25. oil outlet valve spring seat 26. oil outlet valve springs 27. outlet valves 28. UNICOM's oilholes
29. piston spring 30. plunger guide bushs 31. feeding plungers 32. crankcase upper clapboards
33. crankcase lower clapboard 34. crankshaft gears.
Embodiment
Be example with four-stroke miniature gasoline engine lubrication system below, the invention will be further described in conjunction with the accompanying drawings.
Lubrication system sectional drawing of the present invention as shown in Figure 1, for clearer explanation the present invention, lubrication system schematic representation of the present invention as shown in Figure 2, on behalf of lubricant oil trend, white hollow arrow, the solid black arrow represent mist of oil circulation canal to move towards among the figure.Lubrication system of the present invention mainly is made up of oil chamber, crankshaft eccentric mechanism, lubricating pump, oil supply pipeline, crankcase chamber, gear chamber, valve cage, mist of oil circulation canal, circulating pipe, two one-way valves and drainback passage.Wherein eccentric stiffener is by bent axle and be positioned in the middle of the oil chamber eccentric bushing on the bent axle diameter of axle and form, and eccentric bushing directly drives the feeding plunger of lubricating pump.The oil outlet of lubricating pump is connected with oil supply pipeline, and oil supply pipeline is connected to the position that motor need lubricate, as connecting rod, crankshaft gear, camshaft, etc.The lower clapboard of crankcase is provided with first one-way valve, and first one-way valve is connected with the mist of oil circulation canal, and the mist of oil circulation canal is shown in white hollow arrow among Fig. 2.The upper clapboard of crankcase is provided with second one-way valve.The bottom of oil chamber is provided with circulating pipe, and communicates with crankcase chamber.
Can use the lubricating pump of different size for the petrol engine of different displacements.For the structural representation of the employed lubricating pump of four-stroke miniature gasoline engine of compact structure as shown in Figure 3, comprise feeding plunger, plunger guide bush, major parts such as outlet valve.Be provided with pumping cavity in the plunger guide bush and go out oil pocket, the top of feeding plunger is a pumping cavity, be provided with piston spring in the pumping cavity, pumping cavity and go out to be provided with UNICOM's oilhole between the oil pocket, go out and be provided with outlet valve and oil outlet valve spring in the oil pocket, the oil outlet valve spring upper end is provided with the oil outlet valve spring seat, and the wall of pumping cavity is provided with filler opening, and the wall that goes out oil pocket is provided with oil outlet.
UNICOM's oilhole is circular, and outlet valve is circular valve block.Filler opening and oil outlet are circular.
The eccentric stiffener of installing on the bent axle directly drives the lubricating pump feeding plunger.Feeding plunger when moving downward at a high speed, is drawn onto the plunger guide bush pumping cavity to lubricant oil through the oil suction flexible pipe under the effect of piston spring.Feeding plunger is under the eccentric stiffener effect, when moving upward at a high speed, compression lubricant oil raises the pressure of pumping cavity, and the elastic force that overcomes oil outlet valve spring backs down outlet valve, lubricant oil arrives out oil pocket, lubricant oil is transported to the position that need lubricate through oil outlet and flowline again.When feeding plunger presses oil to finish, arrive the extreme higher position of top dead center, under the piston spring effect, move downward once more, get back to the extreme lower position of lower dead center, finish a fuel feeding circulation.Motor whenever turns around, and lubricating pump is finished a fuel feeding circulation.When high engine speeds turned round, lubricating pump was realized continuous fuel feeding process.
In the engine running, the eccentric stiffener on the bent axle directly drives lubricating pump, and the lubricant oil that pumps is injected on the gear of the connecting rod of crankcase chamber and gear chamber through the fuel feeding oil duct in the crankcase, forms mist of oil under the bump of connecting rod and gear.When piston stroking upward, first one-way valve of mist of oil circulation canal is in closed condition, the pressure of crankcase chamber descends, pressure less than the oil chamber, it is P song＜P profit, under the effect of pressure reduction, second one-way valve opens on the mist of oil circulation canal, the lubricant oil and the mist of oil that are deposited in the lubricant mist circulation canal flow back to the oil chamber.When descent of piston, second one-way valve on the mist of oil circulation canal is in closed condition, and the pressure of crankcase chamber raises, greater than the pressure of gear chamber, i.e. and P song＞P tooth, first one-way valve on the mist of oil circulation canal is opened, and mist of oil arrives valve cage through gear chamber.Lubricant mist arrives the process of valve cage from crankcase chamber, has successively lubricated parts such as connecting rod, bent axle, piston, gear, camshaft, valve, rocking arm.
Although relate to a kind of free rotary four-stroke gasoline engine lubrication system and carried out special description disclosed with reference to embodiment, those skilled in the art can understand, under the situation that does not depart from scope and spirit of the present invention, can carry out all conspicuous modification of form and details to it.Therefore, embodiment described above is illustrative and not restrictive, and under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (4)
1. free rotary four-stroke gasoline engine lubrication system, comprise bent axle, crankcase chamber, the oil chamber, gear and gear chamber, it is characterized in that, the end diameter of axle that described bent axle is positioned at oil chamber's part is provided with eccentric bushing, described eccentric bushing is connected with the feeding plunger of lubricating pump, the oil outlet of described lubricating pump is connected with oil supply pipeline, the lower clapboard of described crankcase is provided with first one-way valve, described first one-way valve is connected with the mist of oil circulation canal, the bottom of described oil chamber is provided with circulating pipe and communicates with crankcase chamber, and the upper clapboard of described crankcase is provided with second one-way valve.
2. free rotary four-stroke gasoline engine lubrication system according to claim 1, it is characterized in that, described lubricating pump comprises feeding plunger, plunger guide bush, be provided with pumping cavity in the described plunger guide bush and go out oil pocket, the top of described feeding plunger is a pumping cavity, be provided with piston spring in the described pumping cavity, described pumping cavity and go out to be provided with UNICOM's oilhole between the oil pocket, describedly go out in the oil pocket to be provided with outlet valve and oil outlet valve spring, described oil outlet valve spring upper end is provided with the oil outlet valve spring seat, the wall of described pumping cavity is provided with filler opening, and the described wall that goes out oil pocket is provided with oil outlet.
3. free rotary four-stroke gasoline engine lubrication system according to claim 2 is characterized in that, described UNICOM oilhole is circular, and described outlet valve is circular valve block.
4. free rotary four-stroke gasoline engine lubrication system according to claim 3 is characterized in that, described filler opening and oil outlet are circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101178249A CN1553048A (en) | 2003-12-19 | 2003-12-19 | Lubricating system of free rotary fuor-travel gasoline apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101178249A CN1553048A (en) | 2003-12-19 | 2003-12-19 | Lubricating system of free rotary fuor-travel gasoline apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1553048A true CN1553048A (en) | 2004-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101178249A Pending CN1553048A (en) | 2003-12-19 | 2003-12-19 | Lubricating system of free rotary fuor-travel gasoline apparatus |
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| CN (1) | CN1553048A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445519C (en) * | 2006-09-22 | 2008-12-24 | 郑国璋 | Engine oil booster pump for diesel engine with pluralities of fuel |
| CN101289949B (en) * | 2008-06-04 | 2010-06-23 | 长春市长铃技术开发有限公司 | Hand-held engines capable of working in 360 degree rotation |
| CN102705036A (en) * | 2012-06-11 | 2012-10-03 | 上海三一重机有限公司 | System and method for lubricating crankshaft during inclination of engine |
| CN106246279A (en) * | 2016-09-26 | 2016-12-21 | 江苏理工学院 | Engine motor oil changing method |
| CN106321186A (en) * | 2016-09-26 | 2017-01-11 | 江苏理工学院 | Engine oil switching device |
-
2003
- 2003-12-19 CN CNA2003101178249A patent/CN1553048A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445519C (en) * | 2006-09-22 | 2008-12-24 | 郑国璋 | Engine oil booster pump for diesel engine with pluralities of fuel |
| CN101289949B (en) * | 2008-06-04 | 2010-06-23 | 长春市长铃技术开发有限公司 | Hand-held engines capable of working in 360 degree rotation |
| CN102705036A (en) * | 2012-06-11 | 2012-10-03 | 上海三一重机有限公司 | System and method for lubricating crankshaft during inclination of engine |
| CN102705036B (en) * | 2012-06-11 | 2014-06-25 | 上海三一重机有限公司 | System and method for lubricating crankshaft during inclination of engine |
| CN106246279A (en) * | 2016-09-26 | 2016-12-21 | 江苏理工学院 | Engine motor oil changing method |
| CN106321186A (en) * | 2016-09-26 | 2017-01-11 | 江苏理工学院 | Engine oil switching device |
| CN106321186B (en) * | 2016-09-26 | 2018-10-16 | 江苏理工学院 | Engine motor oil switching device |
| CN106246279B (en) * | 2016-09-26 | 2019-05-03 | 江苏理工学院 | Engine motor oil switching method |
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