CN1039360C - Roller valve type 4-stroke I.C engine distribution mechanism - Google Patents
Roller valve type 4-stroke I.C engine distribution mechanism Download PDFInfo
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- CN1039360C CN1039360C CN 93115903 CN93115903A CN1039360C CN 1039360 C CN1039360 C CN 1039360C CN 93115903 CN93115903 CN 93115903 CN 93115903 A CN93115903 A CN 93115903A CN 1039360 C CN1039360 C CN 1039360C
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- valve body
- spool
- roller
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Abstract
The present invention relates to the fields of the design and the manufacture of internal combustion engines of motorcycles and automobiles, particularly to a gas distribution mechanism for a single cylinder internal combustion engine and a multicylinder and four-stroke internal combustion engine. The present invention is composed of an upper valve body, a lower valve body and a cylindrical roller valve core, wherein the upper part and the lower part of the valve core are the upper valve body and the lower valve body; the external surfaces of the upper valve body and the lower valve body are correspondingly provided with inner concave cavities; the upper valve body and the lower valve body are fastened together by four screw rods which are arranged on a cylinder block. The present invention can enhance the rotational speed of the internal combustion engine and the fuel oil utilization rate, increase power, decrease noise, reduce exhaust gas pollution and maintenance amount, extend service lives of machine parts, and have no need of regulating gas valve clearances.
Description
The internal combustion (IC) Engine Design that the present invention relates to motorcycle and automobile is made the field, specifically is used for a kind of distribution device of single cylinder and multicylinder four-stroke internal combustion engine.
Traditional distribution device working principle of various quartastroke engines is basic identical, and is similar on the structure.Single-cylinder four-stroke machine matching mechanism with chain conduction is an example, it comprise inlet and exhaust valve, valve stem, valve guide bushing, valve spring, camshaft, timing gear, the time rule chain and a series of appurtenances.The tradition lifting type valve mechanism exists on record shortcoming, strong such as impact, coherence is big, easy to wear, noise is high, the life-span is short, efficient is low, complex structure, need to adjust valve clearance etc.Application number is the two spherical rotary valve distribution device of US489558 U. S. Patent, because the spool that adopted is two spiral valves, cause down that valve body still needs two valve scavengings, its valve port and inlet and outlet mouth narrow, make that ventilation is undesirable, fuel utilization ratio is low.And the complex structure of spool, installation, maintenance is inconvenience all.
The objective of the invention is defective, provide a kind of simple in structure, fuel utilization ratio height, the four-stroke internal combustion engine distribution mechanism that is easy to safeguard at above-mentioned existence.
The present invention adopts the roller-and valve-type distribution device, and the roller that serves as spool does steady unidirectional running, and there is not any impact in whole distribution device.It is not only applicable to the single-cylinder four-stroke machine, is applicable to the multicylinder four-stroke machine yet.This distribution device has upper valve body, following valve body, spool and chain, air inlet-outlet pipe etc.Spool (20) upper and lower is upper valve body (22) and the following valve body (12) with the corresponding band inner cavity of its external surface shape, in the middle part of following valve body (12), have and vertically penetrate the jitty of valve body down, the upper end-hole of this passage is dual-purpose valve port (11), and its shape and size are corresponding to the last suction port (19) and the relief opening (21) of roller spool (20) wall; Opening at following valve body (12) lower surface is circular and corresponding with cylinder (10) mouth of cylinder body (8), blanket gas annular groove (13) is arranged around the dual-purpose valve port (11), embed spring sheet (14) and seal gas ring (5) in the groove successively, upper valve body (22) and following valve body (12) have chain channel with the corresponding side of flange plate (18) on the spool (20), and upper valve body (22), spool (20), valve body (12) and cylinder body (8) fasten as one by four screw rods (7) on the cylinder body down.It is characterized in that cylindrical roller spool (20) two ends are provided with air inlet hollow shaft (17) and exhaust hollow shaft (3), advance, exhaust hollow shaft (17,3) respectively with this spool (20) in two not connected channel connections, this two passage respectively be located at lower body (being cylinder head) on dual-purpose valve port (11) be communicated with, it is two not connected passages that roller spool (20) is gone up the gas-entered passageway (4) and exhaust passage (1) that form, and the interface of two passages is the flange plate (18) that chlorine hollow shaft (17) middle part evagination forms the band positioning screw hole that advances of passage interlayer (2) spool (20) one ends.
The present invention compared with prior art, have following advantage: parts are few, and are simple in structure, are easy to installation and maintenance, running steadily, stressed evenly, have any impact each other hardly, the impact noise that does not more cause thus.Airway patency, under identical cylinder diameter condition, intake and exhaust valve port area can be long-pending greater than the gas port shop front of former gazogene structure.Therefore can improve internal-combustion engine rotational speed and fuel utilization ratio, increase power, reduce noise, reduce exhaust emission pollution and amount of maintenance, prolong parts working life, and need not to adjust the valve clearance.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a working principle schematic representation of the present invention.
Fig. 3 is used for the structural representation of four cylinder four-stroke internal-combustion engine for the present invention.
On roller spool of the present invention (20) wall on suction port (19) and the wall area and the shape of relief opening (21) identical, developed surface is two same square aperture, its camber line length of side equals 1/8 of roller spool (20) circumference circle, and two aperture distribution are on the center circle contour of roller valve core, and the center camber line distance of two openings equals 1/4 of roller spool circumference circle.The hollow shaft of spool one end (being the air inlet hollow shaft here) middle part evagination becomes circular flange dish (18), and 3 positioning screw holes are arranged on the dish.Upper valve body (22) has played effects such as slips, roller chamber, dustproof and heat radiation for spool (20), following valve body (12) has played a watt seat, roller chamber for spool (20), the effect of lubricating oil path and seal gas ring carrier is provided, and cylinder body (8) has been played the effect of cylinder head.Following dual-purpose valve port (11) above the valve body is during relief opening (21) on the spool wall is inswept, can make the interior waste gas of cylinder (10) under the up thrust of piston (23), through exhaust passage (1) and exhaust air-cored axis (3) in the roller spool, discharge by outlet pipe (6); And during suction port on the wall (19) was inswept, dual-purpose valve port (11) can make inflammable gas from intake elbow (9) under the descending suction of piston (23), enters cylinder (10) through air inlet air-cored axis (17) and gas-entered passageway (4).The developed surface shape of dual-purpose valve port (11) also can be rectangular, circle, ellipse etc. except that square.
Open the problem of closing late the morning of inlet and outlet door, is the problem that traditional distribution device of four-stroke machine the time is generally considered in design.It is to utilize air-flow inertia that valve is early opened the purpose of closing late, suitably increases the air inflow of cylinder and the waste gas in the emptying cylinder as far as possible, to improve the output power of fuel utilization ratio and increasing combustion engine.The present invention can adopt and the suction port on the roller spool wall and relief opening are realized along the method for roller circumferencial direction proper extension that open late the morning of inlet and outlet door close.
The present invention is not only applicable to the single-cylinder four-stroke machine, and is applicable to the multicylinder four-stroke machine.Upper valve body among Fig. 3, valve body and roller spool can be made of one formula respectively down, and whole distribution device is the unified transmission of rule chains (or Toothed belt) (15) during by one.Open one group of gas hole on the axial wall of every section hollow core shaft respectively, be called axial wall gas hole (31).Every group of totally two in axial wall gas hole (or three), they are evenly distributed along the circumferencial direction of air-cored axis's axial wall.All do on upper valve body and the corresponding position of following valve interior surface and every group of axial wall gas hole and be in depression, these depressions have formed the air cavity (29) that can make air-flow free in and out axial wall gas hole respectively on every side in every group of axial wall gas hole, each air cavity also has an air flue (30) respectively, the other end of each air flue communicates with separately intake manifold (33) or gas exhaust manifold (32) respectively, each intake manifold comes together in unified inlet, and each gas exhaust manifold compiles back and main exhaust (34) UNICOM.Because for same roller spool, the axle core of the air-cored axis at its two ends communicates with two kinds of dissimilar gas channels respectively, and (end communicates with gas-entered passageway (4) in the roller, the other end axle core then communicates with exhaust passage (1) in the roller), so incorporate roller spool is when design, what should guarantee every section axle core institute of air-cored axis Correspondent must be the similar gas channel of adjacent two roller spools, that is: or be the gas-entered passageway (4) of adjacent two rollers, or be the exhaust passage (1) of two adjacent rollers.Roller spool (20) also can be made into sphere, and simultaneously with upper valve body, down the valve interior surface cavity is corresponding with it, the spherical valve core that plays the inlet and outlet effect makes whole distribution device not have any impact in last valve and the unidirectional stably running of following valve body intercropping.
During installation, with Fig. 1 is example, lining upper cylinder half pad between cylinder body (8) and the following valve body (12), and make four long bolts (7) on the cylinder body pass four positioning round orifice on liner and the following valve body (12) respectively, in the blanket gas annular groove (13) that descends valve body (12), embed curved spring sheet (14) and seal gas ring (5) successively then.Go up phase place requirements by Fig. 2 rule chain (15) and timing driven sprocket (16) passed when hanging up properly at timing drive sprocket (25) and timing driven sprocket (16) from the chain channel of cylinder body (8), cylinder pad and valve body (12) perforation down again, with portable.To there be the air-cored axis (17) of flange plate (18) one ends to insert the axis hole of timing driven sprocket (16) at a slant then, and make flange plate and overlapping being close to of timing driven sprocket (16), and use screw locking spool (20).This moment, roller spool (20) Lower Half just in time fell into down valve body (12) fully.Build upper valve body (22) then, load onto intake elbow (9) and outlet pipe (6), lock each parts with screw at last.Just can between upper valve body (22) and following valve body (12), freely rotate at roller spool (20) under the bent axle power like this, and seal gas ring (5) is close to roller spool (20) all the time under the effect of curved spring sheet (14), played good seal action.
Four component a, b among Fig. 2, c, d have represented four strokes of quartastroke engine, i.e. air inlet, compression, work done, exhaust successively.Timing drive sprocket (25) is 1: 2 with the diameter ratio of timing driven sprocket (16), because rule chain (15) transmission when both lean on, and timing drive sprocket (25) is locked with the main journal (24) of bent axle, and timing driven sprocket (16) and roller spool (20) flange plate (18) locking, therefore (720 °) roller turns over a week (360 °) two weeks of bent axle revolution, and both spare and move in the direction of the clock.The leading edge (28) that 0 ° of phase place of roller is defined as roller wall suction port (19) be in following valve body (12) on the position that just overlaps of the leading edge (27) of dual-purpose valve port (11); The residing position of crank (26) when 0 ° of phase place of bent axle then is defined as piston (23) and arrives top dead center and aspirating stroke and be about to begin.According to such regulation, the phase number of bent axle and roller is as follows respectively in each stroke of Fig. 2: a aspirating stroke: 0 °～90 ° b compression strokes of 0 °～180 ° rollers of bent axle: 90 °～180 ° c power strokes of 180 °～360 ° rollers of bent axle: 180 °～270 ° d exhaust strokes of 360 °～540 ° rollers of bent axle: 540 °～720 ° 270 °～360 ° of (0 °) rollers of bent axle (0 °)
Claims (5)
1. roller valve type 4-stroke I. C engine distribution mechanism, have upper valve body, following valve body, spool and chain, air inlet-outlet pipe, spool (20) upper and lower is upper valve body (22) and the following valve body (12) with the corresponding band inner cavity of its external surface shape, in the middle part of following valve body (12), have and vertically penetrate the jitty of valve body down, the upper end-hole of this passage is dual-purpose valve port (11), and its shape and size are corresponding to the last suction port (19) and the relief opening (21) of roller spool (20) wall; Opening at following valve body (12) lower surface is circular and corresponding with cylinder (10) mouth of cylinder body (8), blanket gas annular groove (13) is arranged around the dual-purpose valve port (11), embed spring sheet (14) and seal gas ring (5) in the groove successively, upper valve body (22) and following valve body (12) have chain channel with the corresponding side of flange plate (18) on the spool (20), and upper valve body (22), spool (20), valve body (12) and cylinder body (8) fasten as one by four screw rods (7) on the cylinder body down; It is characterized in that cylindrical roller spool (20) two ends are provided with air inlet hollow shaft (17) and exhaust hollow shaft (3), inlet and outlet hollow shaft (17,3) respectively with this spool (20) in two not connected channel connections, this two passage respectively be located at down valve body on dual-purpose valve port (11) be communicated with, it is two not connected passages that roller spool (20) is gone up the gas-entered passageway (4) and exhaust passage (1) that form, and the interface of two passages is passage interlayer (2).
2. according to the described distribution device of claim 1, it is characterized in that on roller spool (20) wall that the area and the shape of relief opening (21) are identical on the suction port (19) and wall, developed surface is two same square aperture, its camber line length of side equals 1/8 of roller spool (20) circumference circle, and two aperture distribution are on the center circle contour of roller valve core, and the center camber line distance of two openings equals 1/4 of roller spool circumference circle.
3. according to the described distribution device of claim 1, it is characterized in that on dual-purpose valve port (11) and the roller spool wall that the developed surface shape of relief opening (21) also can be rectangular, circle, ellipse on the suction port (19) and wall except that square.
4. according to the described distribution device of claim 1, upper valve body, following valve body and roller spool can be made of one formula respectively when it is characterized in that being used for multicylinder four-stroke internal combustion engine, rule chain or Toothed belt (15) when whole distribution device disposes one; Open one group of gas hole on the axial wall of every section hollow core shaft respectively, every group of axial wall gas hole is total to two or three, and they are evenly distributed along the circumferencial direction of hollow axial wall; All do on upper valve body and the corresponding position of following valve interior surface and every group of axial wall gas hole and be in depression, these depressions have formed the air cavity (29) that can make air-flow free in and out axial wall gas hole respectively on every side in every group of axial wall gas hole, each air cavity also has an air flue (30) respectively, the other end of each air flue communicates with separately intake manifold (33) or gas exhaust manifold (32) respectively, each intake manifold comes together in unified inlet, and each gas exhaust manifold compiles back and main exhaust (34) UNICOM.
5. according to the described distribution device of claim 1, it is characterized in that roller spool (20) also can be made into sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115903 CN1039360C (en) | 1993-11-09 | 1993-11-09 | Roller valve type 4-stroke I.C engine distribution mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115903 CN1039360C (en) | 1993-11-09 | 1993-11-09 | Roller valve type 4-stroke I.C engine distribution mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1102686A CN1102686A (en) | 1995-05-17 |
| CN1039360C true CN1039360C (en) | 1998-07-29 |
Family
ID=4991433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93115903 Expired - Fee Related CN1039360C (en) | 1993-11-09 | 1993-11-09 | Roller valve type 4-stroke I.C engine distribution mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039360C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207219B (en) * | 2011-03-10 | 2012-07-25 | 迟利民 | Cylinder control valve for down-the-hole drill |
| CN108798818B (en) * | 2018-06-14 | 2023-12-26 | 倪梓欣 | Valve mechanism and engine system |
-
1993
- 1993-11-09 CN CN 93115903 patent/CN1039360C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1102686A (en) | 1995-05-17 |
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| C53 | Correction of patent for invention or patent application | ||
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Applicant after: Gou Yonggui Applicant after: Xu Qingwen Applicant before: Gou Yonggui |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Gou Yonggui Inventor after: Xu Qingwen Inventor after: Ning Riyong Inventor before: Gou Yonggui Inventor before: Ning Riyong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GOU YONGGUI NING RIYONG TO: GOU YONGGUI XU QINGWEN NING RIYONG |
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| 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 |