CN105971724A - Horizontally-opposed cylindrical cam engine - Google Patents
Horizontally-opposed cylindrical cam engine Download PDFInfo
- Publication number
- CN105971724A CN105971724A CN201610398412.4A CN201610398412A CN105971724A CN 105971724 A CN105971724 A CN 105971724A CN 201610398412 A CN201610398412 A CN 201610398412A CN 105971724 A CN105971724 A CN 105971724A
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- CN
- China
- Prior art keywords
- cylindrical cam
- horizontally
- cam
- electromotor
- opposed
- 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.)
- Pending
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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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
-
- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/08—Multi-track cams, e.g. for cycles consisting of several revolutions; Cam-followers specially adapted for such cams
-
- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1832—Number of cylinders eight
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to internal combustion engine devices, in particular to power transmission systems of internal combustion engines, and specifically relates to a horizontally-opposed cylindrical cam engine. The horizontally-opposed cylindrical cam engine comprises a cylindrical cam, wherein contour lines of the left and right end faces of the cylindrical cam are transverse curves; a power shaft is fixed in the center of the cylindrical cam; four pistons with push rods are arranged on each of the left and right end faces of the cylindrical cam; rollers are arranged at the bottom ends of the push rods of the pistons; the rollers move along the contour lines of the end faces of the cylindrical cam; and the linear back-and-forth movement of the push rods of the pistons is converted into the rotational motion of the cylindrical cam. According to the horizontally-opposed cylindrical cam engine, the contour lines are designed as cosine curves, so that the continuous change of a roller acceleration curve is achieved, namely, the rollers do not have sudden impact at upper and lower dead points; and the linear motion of the rollers is converted into the rotational motion of the cam according to the self characteristic of the cam, so that the power conversion from the reciprocating rectilinear movement of the pistons to the rotational motion is achieved, and the horizontally-opposed cylindrical cam engine has good power output stability.
Description
Technical field
The present invention relates to internal-combustion engine arrangement, especially the power drive system of internal combustion engine, specifically refer to a kind of horizontally-opposed cylindrical cam electromotor.
Background technology
Fuel and air are mixed by internal combustion engine, and at its combustor inner cylinder, the heat energy discharged produces the combustion gas of High Temperature High Pressure in making cylinder.Combustion gas expands against piston work done, then mechanical power is exported by transfer bar mechanism or other mechanisms, drives follower work.
At present, internal combustion engine still also exists many not enough, is first that the piston of electromotor exists the phenomenon that velocity attitude suddenlys change upper and lower stop when, and mechanism is had an impact service life by such sudden change；Secondly, the cylinder wall of electromotor also exists alternation lateral pressure to piston and push rod, has a strong impact on the service life of push rod and piston；Finally, the loaded down with trivial details volume of existing engine structure is relatively big, is adapted as hybrid dynamic system difficulty big.
Summary of the invention
In order to overcome existing internal combustion engine linkage alternation lateral pressure in the velocity jump, running of upper and lower stop and the bigger deficiency of the loaded down with trivial details volume of Structure of Internal-Combustion Engine, present invention employs a kind of brand-new combustion engine powered drive system.The straight line back and forth movement of piston is converted into rotary motion by cam by this system, utilizes the characteristic of cam to overcome the problem of velocity jump, utilizes the problem that push rod overcomes alternation lateral pressure with the relative Position Design of cam.
A kind of horizontally-opposed cylindrical cam electromotor, including the cylindrical cam of horizontal positioned, about cylindrical cam, the contour line of two end faces is the curve transversely risen and fallen, and cylindrical cam center is fixed with line shaft；Being respectively equipped with 4 pistons with push rod about cylindrical cam on two end faces, the bottom of described piston push rod is provided with roller, and roller moves along the contour line of cylindrical cam end face, and the straight line back and forth movement of piston push rod is converted into the rotary motion of cylindrical cam.
Preferably, the surrounding being located at cylindrical cam center of 4 pistons symmetries of cylindrical cam side, roller is 1/4th phase places of each difference on the contour line of cylindrical cam end face.
Preferably, the piston of cylindrical cam both sides is symmetrical.
Preferably, described upper surface contour line is cosine curve.
Preferably, the contour line correspondence of described two end faces of cylindrical cam is identical.
Preferably, two end faces of described cylindrical cam are the curved surface transversely risen and fallen.
Preferably, two contrate wheel profiles of described cylindrical cam are cosine curve.
Preferably, two end faces of described cylindrical cam are identical curved surface.
Preferably, two contrate wheel profiles of described cylindrical cam are provided with groove, in roller is embedded in groove (roller has pulling force and pressure by groove to cylindrical cam).
The center of two end faces of described cylindrical cam is all fixed with line shaft.
The technical solution adopted for the present invention to solve the technical problems is: the assembly of this horizontally-opposed cylindrical cam electromotor includes 8 piston push rods and the roller of bottom, cylindrical cam (cam follower), the line shaft (power output shaft) of cylindrical cam.Cam is laterally disposed, and four piston push rod symmetries are placed on cylindrical cam left end, and four piston push rod symmetries are placed on cam right-hand member.Cam horizontal positioned, piston crank linkage is placed on the cam left and right sides, duty two strokes more late than the duty of the piston push rod group on right side of left hand piston push rod group, realizes the output of horizontally-opposed power with this.
As traditional combustion engine, combustor inner cylinder fuel promotes and moves along a straight line about piston and push rod work, and the roller of push rod bottom moves up and down together along with push rod.Cam follower left and right end face is curvilinear profile line, and four rollers act on contour line.Each roller all differs 1/4th cycles with adjacent rollers on contour line.Contour line may be designed as cosine curve, and this will not undergo mutation realizing the consecutive variations of roller accelerating curve, i.e. roller when upper and lower stop impact.According to the characteristic of cam itself, the direct acting of roller will be converted into the rotary motion of cam, thus the linear reciprocating motion realizing piston becomes the power-conversion of rotary motion.
The invention has the beneficial effects as follows, cylindrical cam contrate wheel profile will not be undergone mutation realizing the consecutive variations of roller accelerating curve, i.e. roller when upper and lower stop impact.Cam follower so present invention eliminates the structure of flywheel, can reduce electromotor volume as the flywheel of traditional combustion engine, and cam had both been used as flywheel, can transmit thing by line shaft again.Piston push rod remains at the side of cam, so the load that piston is born is not alternation lateral pressure and simply pressure, the life-span of such piston and push rod just will extend a lot.Because four piston push rods are symmetrical arranged, and four rollers respectively differ 1/4th cycles settings, so there being good power output stationarity.Because using horizontally-opposed design, so electromotor overall dynamics stress balance.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
1. piston in figure, 2. push rod, 3. roller, 4. cylindrical cam, 5. line shaft
Detailed description of the invention
A kind of horizontally-opposed cylindrical cam 4 electromotor, including the cylindrical cam 4 of horizontal positioned, the contour line of about 4 two end faces of cylindrical cam is the curve transversely risen and fallen, and cylindrical cam 4 center is fixed with line shaft 5；It is respectively equipped with 4 pistons 1 with push rod 2 on about 4 two end faces of cylindrical cam, the bottom of described piston 1 push rod 2 is provided with roller 3, roller 3 moves along the contour line of cylindrical cam 4 end face, and the straight line back and forth movement of piston 1 push rod 2 is converted into the rotary motion of cylindrical cam 4.The surrounding being located at cylindrical cam 4 center of 4 piston 1 symmetries of cylindrical cam 4 side, roller 3 is 1/4th phase places of each difference on the contour line of cylindrical cam 4 end face.The piston 1 of cylindrical cam 4 both sides is symmetrical.Described upper surface contour line is cosine curve.The contour line correspondence of described 4 two end faces of cylindrical cam is identical.
Preferably, two end faces of described cylindrical cam 4 are the curved surface of dipping and heaving.Two contrate wheel profiles of described cylindrical cam 4 are cosine curve.Two end faces of described cylindrical cam 4 are identical curved surface.
Preferably, two contrate wheel profiles of described cylindrical cam 4 are provided with groove, and roller 3 is embedded in groove (roller 3 has pulling force and pressure by groove to cylindrical cam 4).
The center of two end faces of described cylindrical cam 4 is all fixed with line shaft 5.
In FIG, piston 1 promotes push rod 2 for linear motion, and the acting order of each four pistons in both sides is identical with traditional combustion engine four stroke procedure.Duty two strokes more late than the duty of the piston push rod group on right side of left hand piston push rod group, realize the output of horizontally-opposed power with this.The roller 3 of push rod 2 bottom is along with push rod together side-to-side movement, and promotes cylindrical cam 4, and so, the direct acting of roller 3 will be converted into the rotary motion of cam 4.Line shaft 5 on cylindrical cam 4 rotates and exports power.
Claims (10)
1. a horizontally-opposed cylindrical cam electromotor, it is characterised in that: include the cylindrical cam of horizontal positioned, circle
About post cam, the contour line of two end faces is the curve transversely risen and fallen, and cylindrical cam center is fixed with dynamic
Power axle；Being respectively equipped with 4 pistons with push rod about cylindrical cam on two end faces, described piston pushes away
The bottom of bar is provided with roller, and roller moves along the contour line of cylindrical cam end face, and the straight line of piston push rod is past
Return the rotary motion that conversion of motion is cylindrical cam.
Horizontally-opposed cylindrical cam electromotor the most according to claim 1, it is characterised in that: cylindrical cam one
The surrounding being located at cylindrical cam center of 4 pistons symmetries of side, roller is at the profile of cylindrical cam end face
/ 4th phase places of each difference on line.
Horizontally-opposed cylindrical cam electromotor the most according to claim 1, it is characterised in that: cylindrical cam two
The piston of side is symmetrical.
Horizontally-opposed cylindrical cam electromotor the most according to claim 1, it is characterised in that: described upper surface
Contour line is cosine curve.
Horizontally-opposed cylindrical cam electromotor the most according to claim 1, it is characterised in that: described cylinder is convex
The contour line correspondence of two end faces of wheel is identical.
Horizontally-opposed cylindrical cam electromotor the most according to claim 1, it is characterised in that: described cylinder is convex
Two end faces of wheel are the curved surface transversely risen and fallen.
Horizontally-opposed cylindrical cam electromotor the most according to claim 6, it is characterised in that: described cylinder is convex
Two contrate wheel profiles of wheel are cosine curve.
8. according to the horizontally-opposed cylindrical cam electromotor described in claim 6 or 7, it is characterised in that: described circle
Two end faces of post cam are identical curved surface.
9. according to the arbitrary described horizontally-opposed cylindrical cam electromotor of claim 1-8, it is characterised in that: described
Two contrate wheel profiles of cylindrical cam are provided with groove, and roller is embedded in groove.
10. according to the arbitrary described horizontally-opposed cylindrical cam electromotor of claim 1-8, it is characterised in that:
The center of two end faces of described cylindrical cam is all fixed with line shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398412.4A CN105971724A (en) | 2016-06-06 | 2016-06-06 | Horizontally-opposed cylindrical cam engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398412.4A CN105971724A (en) | 2016-06-06 | 2016-06-06 | Horizontally-opposed cylindrical cam engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971724A true CN105971724A (en) | 2016-09-28 |
Family
ID=57011095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610398412.4A Pending CN105971724A (en) | 2016-06-06 | 2016-06-06 | Horizontally-opposed cylindrical cam engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971724A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503901A (en) * | 2017-07-25 | 2017-12-22 | 中国民航大学 | Two-sided concave grooved cam reciprocating pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215045A (en) * | 1992-07-08 | 1993-06-01 | Ivan Vadnjal | Cam drive internal combustion engine |
| CN2190166Y (en) * | 1994-01-28 | 1995-02-22 | 武守仁 | IC engine with cam piston |
| CN2193431Y (en) * | 1994-01-29 | 1995-03-29 | 左学禹 | Engine without crankshaft connecting rod |
| CN2523965Y (en) * | 2001-12-29 | 2002-12-04 | 徐培瑜 | Rotating piston engines |
| CN101033712A (en) * | 2006-03-08 | 2007-09-12 | 方洪伟 | Concave-convex rotary engine |
| CN103032164A (en) * | 2012-12-24 | 2013-04-10 | 四川大学 | Outer convex inner arbitrary gear difference cam rolling moving transmission internal-combustion engine |
| CN103089425A (en) * | 2011-10-27 | 2013-05-08 | 胡三杰 | Integrated annular curved slideway engine |
| CN104791095A (en) * | 2015-03-30 | 2015-07-22 | 中国石油大学(华东) | Single cam set crankshaft-free engine |
-
2016
- 2016-06-06 CN CN201610398412.4A patent/CN105971724A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215045A (en) * | 1992-07-08 | 1993-06-01 | Ivan Vadnjal | Cam drive internal combustion engine |
| CN2190166Y (en) * | 1994-01-28 | 1995-02-22 | 武守仁 | IC engine with cam piston |
| CN2193431Y (en) * | 1994-01-29 | 1995-03-29 | 左学禹 | Engine without crankshaft connecting rod |
| CN2523965Y (en) * | 2001-12-29 | 2002-12-04 | 徐培瑜 | Rotating piston engines |
| CN101033712A (en) * | 2006-03-08 | 2007-09-12 | 方洪伟 | Concave-convex rotary engine |
| CN103089425A (en) * | 2011-10-27 | 2013-05-08 | 胡三杰 | Integrated annular curved slideway engine |
| CN103032164A (en) * | 2012-12-24 | 2013-04-10 | 四川大学 | Outer convex inner arbitrary gear difference cam rolling moving transmission internal-combustion engine |
| CN104791095A (en) * | 2015-03-30 | 2015-07-22 | 中国石油大学(华东) | Single cam set crankshaft-free engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503901A (en) * | 2017-07-25 | 2017-12-22 | 中国民航大学 | Two-sided concave grooved cam reciprocating pump |
| CN107503901B (en) * | 2017-07-25 | 2019-03-01 | 中国民航大学 | Two-sided concave grooved cam reciprocating pump |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |
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| RJ01 | Rejection of invention patent application after publication |