CN201908724U - Quasi-free piston internal combustion engine - Google Patents
Quasi-free piston internal combustion engine Download PDFInfo
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- CN201908724U CN201908724U CN201020667634XU CN201020667634U CN201908724U CN 201908724 U CN201908724 U CN 201908724U CN 201020667634X U CN201020667634X U CN 201020667634XU CN 201020667634 U CN201020667634 U CN 201020667634U CN 201908724 U CN201908724 U CN 201908724U
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Abstract
The utility model discloses a quasi-free piston internal combustion engine, each piston is fixedly provided with a power rod, equidirectional linkage devices are arranged between two adjacent power rods which move in the same direction respectively, cogs are arranged on the opposite sides of the two adjacent power rods which move in the opposite directions respectively, and the cogs are meshed with a same synchronous gear; and a crank-link mechanism is used for constraining the strokes of the pistons, and providing timing and power for a gas distribution mechanism and an oil injection system of the internal combustion engine. The internal combustion engine can output linear power or output swing type rotation power, and the energy transfer among all cylinders is realized through the simple structure, thereby overcoming the defect of energy depreciation caused by the change in a coefficient of a force arm of the crank-link mechanism of the traditional internal combustion engine, realizing small inertial force of a motion part, being smooth in operation, precisely controlling the positions of upper and lower stop points of the pistons during working and ensure that the compression ratio is constant.
Description
Technical field
The utility model relates to technical field of internal combustion engines, relates in particular to a kind of semi-free piston formula internal-combustion engine.
Background technique
Traditional internal-combustion engine, the firing chamber of partly forming by piston-cylinder is the linear reciprocating motion of piston with the thermal power transfer that fuel combustion discharges, by bent axle-linkage mechanism the linear reciprocating motion of piston is converted to rotatablely moving of bent axle again, so far, machine power is exported by bent axle.
As everyone knows, the size of internal-combustion engine indicated work is directly proportional with the arm of force coefficient of cylinder pressure and connecting rod, if will obtain maximum indicated work, the cylinder maximum combustion pressure is occurred when the maximum arm of force coefficient.Traditional internal-combustion engine, the characteristics of crankshaft ﹠ connecting are: during maximum combustion pressure, piston is near top dead center position in the firing chamber, this moment connecting rod to transmit the direction of power very little with respect to the arm of force at crankshaft rotating center, caused the energy devaluation.
For addressing the above problem, since a very long time, those skilled in the art is at the development of being devoted to a kind of new internal combustion engine generator group, i.e. free piston IC generator set.The present inventor once disclosed a kind of semi-free piston linear generator set in Chinese invention patent ZL200710116035.1, be exactly a kind of good trial.This generator set has removed crankshaft ﹠ connecting, and the reciprocating machine kinetic energy that piston is produced directly is converted to electric energy by linear electric generator, has solved energy that the variation of crankshaft ﹠ connecting arm of force coefficient causes and has devalued problem.But this generator set also exists following drawback:
One, the mover of linear electric generator is done linear reciprocating motion with power lever, and the reciprocating part quality is excessive, is in operation to have produced very big inertial force, causes unit vibration strong;
Two, utilize air cushion to come the stroke of confined piston, the position of lower dead center can not accurately be controlled on the piston, and compression ratio is unfixing.
The model utility content
The utility model provides a kind of semi-free piston internal-combustion engine that can export straight line or rotation reciprocating power, this internal-combustion engine has been realized energy transfer between each cylinder by simple structure, overcome the defective that traditional combustion engine causes energy to devalue owing to the variation of crankshaft ﹠ connecting arm of force coefficient, movement parts inertial force is little, operate steadily, and, guarantee that compression ratio immobilizes in the accurate position of lower dead center on the control piston of when work.
When adopting three cylinders and the internal-combustion engine more than three cylinders, the utility model adopts following technological scheme:
A kind of semi-free piston internal-combustion engine comprises one group of parallel piston that is installed in the cylinder separately, and described piston is three at least; Described each piston all is fixed with a power lever, described power lever linear slide is constrained in the cylinder block of described internal-combustion engine, be provided with linkage in the same way between adjacent two power levers that move in the same way, the opposite side of adjacent two power levers that oppositely move is respectively equipped with the gear teeth, the described gear teeth mesh with same synchromesh gear respectively, and described synchromesh gear rotates and is installed on the described cylinder block; Be used to retrain the crankshaft ﹠ connecting of described piston stroke, described crankshaft ﹠ connecting comprises a bent axle and a connecting rod, described bent axle rotates and is installed on the cylinder block of described internal-combustion engine, one end of described connecting rod is hinged on the rod journal of described bent axle, and the end of the other end and described linkage in the same way or one of them power lever is hinged.
As a kind of optimal way, described linkage in the same way comprises a linkage rod.
As a kind of optimal way, described linkage in the same way comprises and a pair ofly is meshing with each other and rotates linkage gear on the cylinder block that is installed on described internal-combustion engine, the opposite side of described adjacent two power levers that move in the same way is respectively equipped with the gear teeth, the described gear teeth respectively with corresponding linkage gear engagement.
As a kind of optimal way, described bent axle is provided with timing gear.
As with a kind of design, when adopting two-cycle engine, the utility model adopts following technological scheme:
A kind of semi-free piston internal-combustion engine comprises one group of parallel piston that is installed in the cylinder separately, and described piston is two; Described each piston all is fixed with a power lever, described power lever linear slide is constrained in the cylinder block of described internal-combustion engine, the opposite side of described two power levers is respectively equipped with the gear teeth, the described gear teeth mesh with same synchromesh gear respectively, and described synchromesh gear rotates and is installed on the described cylinder block; Be used to retrain described piston stroke crankshaft ﹠ connecting, described crankshaft ﹠ connecting comprises a bent axle and a connecting rod, described bent axle rotates and is installed on the cylinder block of described internal-combustion engine, one end of described connecting rod is hinged on the rod journal of described bent axle, and the end of the other end and one of them power lever is hinged.
After having adopted technique scheme, the beneficial effects of the utility model are: because described each piston all is fixed with a power lever, described power lever linear slide is constrained in the cylinder block of described internal-combustion engine, be provided with linkage in the same way between adjacent two power levers that move in the same way, the opposite side of adjacent two power levers that oppositely move is respectively equipped with the gear teeth, and the described gear teeth mesh with same synchromesh gear respectively; Therefore, in each stroke of internal combustion engine operation,, just can drive other cylinder and move together, solve the energy transfer problem between each cylinder as long as a cylinder acting is arranged.The energy that fuel burns in cylinder and discharges is directly exported by power lever, perhaps by the gear teeth on the power lever and synchromesh gear engagement back output.The transmission arm of force coefficient of this way of output is always 1, has solved the problem that energy output is devalued.Synchromesh gear adopts the back and forth mode outputting power of rotation, and synchromesh gear is a revolving meber, and its structure is with respect to the rotating center symmetry, but the counteracting of the rotating inertia force complete equilibrium of generation can reduce the vibration of machine significantly during work.
In addition, the crankshaft ﹠ connecting that the utility model adopts is different from the crankshaft ﹠ connecting of traditional combustion engine, has only a connecting rod, and its bent axle also only needs a pair of connecting lever and a rod journal accordingly.Its effect only is to retrain described piston stroke, and guaranteeing the accuracy of lower dead center location on the piston, and for injection system and distribution device provide power and timing, structure is greatly simplified.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is the utility model embodiment 2 a structural representation;
Fig. 3 is the utility model embodiment 3 a structural representation;
Wherein, 11. first pistons; 12. second piston; 13. the 3rd piston; 14. the 4th piston; 21. first power lever; 22. second power lever; 23. the 3rd power lever; 24. the 4th power lever; 3. first synchromesh gear; 5. linear bearing; 6. bent axle; 7. connecting rod; 8. couple axle; 9. second synchromesh gear; 15. timing gear; 16. linkage gear.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of semi-free piston internal-combustion engine of four cylinder four-stroke, it comprises first piston 11, second piston 12, the 3rd piston 13 and the 4th piston 14 that from left to right be arranged in parallel, described four pistons all are installed on separately in the corresponding cylinder.Described four pistons be fixedly connected sequentially first power lever 21, second power lever 22, the 3rd power lever 23 and the 4th power lever 24, described four power levers are constrained in respectively in the linear bearing 5, described linear bearing 5 is arranged on the described cylinder block, linear bearing 5 play the guiding role, for this kind purpose, also can adopt other structure with described four power lever line constraints on described cylinder block.
Between described second power lever 22 and the 3rd power lever 23 couple axle 8 is installed, the surface of described first power lever 21 and second power lever, 22 sides adjacent is provided with the gear teeth, the described gear teeth are respectively from both sides and 3 engagements of first synchromesh gear, also be provided with the gear teeth on the surface of described the 3rd power lever 23 and the 4th power lever 24 sides adjacent, the described gear teeth are meshed with second synchromesh gear 9 from both sides respectively, and described first synchromesh gear 3, second synchromesh gear 9 can guarantee that with couple axle 8 described four pistons are synchronized with the movement.When work, second power lever 22 and the 3rd power lever 23 move in the same way, second power lever 22 and first power lever 21 then oppositely move, in other words, couple together with regard to guaranteeing mobile in the same way by couple axle between two adjacent power levers, synchromesh gear is set between two adjacent power levers just can guarantees oppositely to move, guarantee the acting in turn of its pairing cylinder sequence, and realize the energy transfer between each cylinder.
Described first synchromesh gear 3 and second synchromesh gear 9 rotate and are installed on the cylinder block.The energy that fuel burns in cylinder and discharges by the power lever outputting power, or is directly delivered to outputting power on the synchromesh gear by the gear teeth of power lever, and it transmits arm of force coefficient and is always 1, has solved the problem that energy output is devalued.Synchromesh gear adopts the back and forth mode outputting power of rotation, and synchromesh gear is a revolving meber, and its structure is with respect to the rotating center symmetry, but the counteracting of the rotating inertia force complete equilibrium of generation can reduce the vibration of machine significantly during work.
Be connected with the crankshaft ﹠ connecting of the described piston stroke of constraint on the described couple axle 8, described crankshaft ﹠ connecting comprises connecting rod 7 and bent axle 6, described bent axle 6 rotates and is installed on the described cylinder block, described connecting rod 7 is hinged between the rod journal and described couple axle 8 of described bent axle 6, described bent axle 6 is provided with timing gear 15, for internal-combustion engine injection system and distribution device provide power and timing etc.The crankshaft ﹠ connecting here is different from the crankshaft ﹠ connecting of traditional combustion engine; its effect only is to retrain described piston stroke; guarantee the accuracy of lower dead center location on the piston; and provide timing and power for I. C engine distribution mechanism and injection system; therefore it only needs a connecting rod; also have only a pair of connecting lever and a rod journal on the corresponding bent axle, structure is greatly simplified.
Cooling system in the utility model, combustion system, air inlet system and exhaust system, starting system, distribution device, fuel supply and ejecting system etc. are all with reference to the structure setting of traditional combustion engine, and these are all grasped by those of ordinary skills.
Embodiment 2
Shown in Fig. 2 also is a kind of semi-free piston internal-combustion engine of four cylinder four-stroke, its structure is substantially the same manner as Example 1, difference is, be provided with another kind linkage in the same way between adjacent two power levers that move in the same way, described linkage in the same way comprises and a pair ofly is meshing with each other and rotates linkage gear 16 on the cylinder block that is installed on described internal-combustion engine, the opposite side of described adjacent two power levers that move in the same way is respectively equipped with the gear teeth, the described gear teeth respectively with corresponding linkage gear engagement.At this moment, an end of described connecting rod 7 is hinged on the rod journal of described bent axle 6, and the end of the other end and one of them power lever is hinged, for example is second power lever 22.
As shown in Figure 3, a kind of semi-free piston internal-combustion engine of two cylinders, two strokes, its structure is actually embodiment 2 simplification version, has only chosen two pistons that oppositely move and has guaranteed the necessary structure of operation.
The technical conceive that the utility model disclosed can be widely applied on the above two-stroke internal-combustion engine of above quartastroke engine of four cylinders and four cylinders or two cylinders and two cylinders, the past complex line kinetic energy or the pendulum-type rotation function of its output, can with the supporting electric energy that is converted into of corresponding generator, also can be supporting with other power plant.The improvement that all have been done based on the utility model all can fall within the protection domain of the present utility model.
Claims (5)
1. semi-free piston internal-combustion engine comprises one group of parallel piston that is installed in the cylinder separately, and described piston is three at least; It is characterized in that:
Described each piston all is fixed with a power lever, described power lever linear slide is constrained in the cylinder block of described internal-combustion engine, be provided with linkage in the same way between adjacent two power levers that move in the same way, the opposite side of adjacent two power levers that oppositely move is respectively equipped with the gear teeth, the described gear teeth mesh with same synchromesh gear respectively, and described synchromesh gear rotates and is installed on the described cylinder block;
Be used to retrain the crankshaft ﹠ connecting of described piston stroke, described crankshaft ﹠ connecting comprises a bent axle and a connecting rod, described bent axle rotates and is installed on the cylinder block of described internal-combustion engine, one end of described connecting rod is hinged on the rod journal of described bent axle, and the end of the other end and described linkage in the same way or one of them power lever is hinged.
2. semi-free piston internal-combustion engine as claimed in claim 1 is characterized in that: linkage comprises a linkage rod in the same way.
3. semi-free piston internal-combustion engine as claimed in claim 1, it is characterized in that: described linkage in the same way comprises and a pair ofly is meshing with each other and rotates linkage gear on the cylinder block that is installed on described internal-combustion engine, the opposite side of described adjacent two power levers that move in the same way is respectively equipped with the gear teeth, the described gear teeth respectively with corresponding linkage gear engagement.
4. semi-free piston internal-combustion engine comprises one group of parallel piston that is installed in the cylinder separately, and described piston is two; It is characterized in that:
Described each piston all is fixed with a power lever, described power lever linear slide is constrained in the cylinder block of described internal-combustion engine, the opposite side of described two power levers is respectively equipped with the gear teeth, the described gear teeth mesh with same synchromesh gear respectively, and described synchromesh gear rotates and is installed on the described cylinder block;
Be used to retrain the crankshaft ﹠ connecting of described piston stroke, described crankshaft ﹠ connecting comprises a bent axle and a connecting rod, described bent axle rotates and is installed on the cylinder block of described internal-combustion engine, one end of described connecting rod is hinged on the rod journal of described bent axle, and the end of the other end and one of them power lever is hinged.
5. as described any semi-free piston internal-combustion engine of claim 1 to 4, it is characterized in that: described bent axle is provided with timing gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020667634XU CN201908724U (en) | 2010-12-09 | 2010-12-09 | Quasi-free piston internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020667634XU CN201908724U (en) | 2010-12-09 | 2010-12-09 | Quasi-free piston internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908724U true CN201908724U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020667634XU Expired - Lifetime CN201908724U (en) | 2010-12-09 | 2010-12-09 | Quasi-free piston internal combustion engine |
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| CN (1) | CN201908724U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042083A (en) * | 2010-12-09 | 2011-05-04 | 潍坊威度电子科技有限公司 | Quasi-free piston internal combustion engine |
| CN110296197A (en) * | 2019-07-29 | 2019-10-01 | 效俊林 | Piston straight-shaft internal-combustion engine link mechanism |
| CN111663999A (en) * | 2020-04-19 | 2020-09-15 | 熵零技术逻辑工程院集团股份有限公司 | Engine |
-
2010
- 2010-12-09 CN CN201020667634XU patent/CN201908724U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042083A (en) * | 2010-12-09 | 2011-05-04 | 潍坊威度电子科技有限公司 | Quasi-free piston internal combustion engine |
| CN102042083B (en) * | 2010-12-09 | 2012-09-26 | 潍坊威度电子科技有限公司 | Quasi-free piston internal combustion engine |
| CN110296197A (en) * | 2019-07-29 | 2019-10-01 | 效俊林 | Piston straight-shaft internal-combustion engine link mechanism |
| CN111663999A (en) * | 2020-04-19 | 2020-09-15 | 熵零技术逻辑工程院集团股份有限公司 | Engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110727 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |