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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0396572 (2012-02-14) |
등록번호 | US-8820275 (2014-09-02) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 1 인용 특허 : 327 |
Torque multiplier engines, and associated methods and systems, are disclosed herein. An internal combustion engine in accordance with a particular embodiment can include a connecting rod operably coupling a pair of opposing pistons. The engine can further include a first bearing coupled to the conne
Torque multiplier engines, and associated methods and systems, are disclosed herein. An internal combustion engine in accordance with a particular embodiment can include a connecting rod operably coupling a pair of opposing pistons. The engine can further include a first bearing coupled to the connecting rod and positioned to engage a first cam groove of an inner cam drum. A second bearing coupled to the connecting rod can be positioned to engage a second cam groove on an outer cam drum. The first and second bearings can translate linear motion of the opposing pistons to rotation of the cam drums.
1. An internal combustion engine comprising: a pair of opposing pistons;a connecting rod operably coupling the opposing pistons to one another;an inner cam drum having a first cam groove;a first bearing coupled to the connecting rod, the first bearing positioned to engage the first cam groove, where
1. An internal combustion engine comprising: a pair of opposing pistons;a connecting rod operably coupling the opposing pistons to one another;an inner cam drum having a first cam groove;a first bearing coupled to the connecting rod, the first bearing positioned to engage the first cam groove, wherein the first bearing translates linear motion of the opposing pistons to rotation of the inner cam drum;an outer cam drum having a second cam groove; anda second bearing coupled to the connecting rod, the second bearing positioned to engage the second cam groove, wherein the second bearing translates linear motion of the opposing pistons to rotation of the outer cam drum. 2. The internal combustion engine of claim 1, further comprising a first drive shaft and a second drive shaft, the first and second drive shafts coaxial with the inner cam drum and fixedly coupled to the inner cam drum. 3. The internal combustion engine of claim 1 wherein the outer cam drum includes a plurality of gear teeth, and wherein the engine further comprises a drive shaft operably coupled to a gear, the gear positioned to engage the gear teeth and rotate the drive shaft to drive a load. 4. The internal combustion engine of claim 1 wherein individual pistons include a piston valve, the piston valve operable from a closed position to an open position, and wherein the open position is configured to reduce a compression ratio of the engine. 5. The internal combustion engine of claim 1 wherein individual pistons include a piston valve, and wherein the engine further comprises a casing having an opening configured to provide air flow through the piston valve. 6. The internal combustion engine of claim 1 wherein individual pistons include: a piston valve configured to provide an exhaust path;a valve cam; anda roller bearing operably coupled to the valve cam, the roller bearing operable to rotate the valve cam to move the piston valve from a closed position to an open position. 7. An internal combustion engine comprising: a pair of opposing pistons;a connecting rod operably coupling the opposing pistons to one another;an inner cam drum having a first cam groove;a first bearing coupled to the connecting rod, the first bearing positioned to engage the first cam groove, wherein the first bearing translates linear motion of the opposing pistons to rotation of the inner cam drum;an outer cam drum having a second cam groove; anda second bearing coupled to the connecting rod, the second bearing positioned to engage the second cam groove, wherein the second bearing translates linear motion of the opposing pistons to rotation of the outer cam drum, and wherein the rotation of the inner cam drum and the rotation of the outer cam drum are in opposite directions. 8. The internal combustion engine of claim 7, wherein the outer cam drum comprises an annular cylinder that is spaced apart from and coaxial with the inner cam drum. 9. An internal combustion engine comprising: a plurality of cylinders disposed in a radial configuration;a plurality of pistons, individual pistons disposed in corresponding cylinders;a plurality of roller bearings, individual roller bearings operably coupled to corresponding pistons; anda cam positioned to engage the roller bearings; the cam including— a plurality of lobes,a cross-sectional shape configured to convert linear motion of the pistons to rotational motion, anda cross sectional diameter that varies along a central axis. 10. The internal combustion engine of claim 9 wherein the cam is translatable along the central axis from a first position to a second position, and wherein in the first position the cam provides a first lift to the pistons and in the second position the cam provides a second lift to the pistons, the first lift greater than the second lift. 11. The internal combustion engine of claim 9 wherein the cam includes a first plurality of cam lobes at a first end of the cam and a second plurality of cam lobes at a second end, the first plurality of cam lobes numbering less than the second plurality of cam lobes. 12. The internal combustion engine of claim 11 wherein the cam includes a section having a generally circular cross-sectional area. 13. An internal combustion engine comprising: a plurality of pistons, individual pistons including a sidewall;a plurality of roller bearings, individual roller bearings operably coupled to individual pistons;a central cam positioned to engage the roller bearings, the central cam configured to convert linear motion of the pistons to rotational motion;a plurality of valve cams, individual valve cams operably coupled to corresponding roller bearings, wherein the valve cams are configured to rotate with individual roller bearings;a plurality of piston valves, individual piston valves operably coupled to corresponding pistons; anda plurality of rollers, individual rollers operably coupled to corresponding piston valves by valve stems, the plurality of rollers configured to engage corresponding valve cams and operate the individual piston valves between a closed position and an open position. 14. The internal combustion engine of claim 13 wherein the central cam includes a first plurality of cam lobes at a first end of the central cam, and a second plurality of cam lobes at a second end of the central cam, the first plurality of cam lobes numbering less than the second plurality of cam lobes, the central cam configured to translate along a rotational axis to provide varying lift and varying torque multiplication for the internal combustion engine. 15. The internal combustion engine of claim 14 wherein the first plurality of cam lobes comprises three cam lobes and the second plurality of cam lobes comprises five cam lobes. 16. The internal combustion engine of claim 13 wherein the central cam includes a section having a generally circular cross-sectional area, the section configured to provide a transition from a first torque multiplication to a second torque multiplication. 17. The internal combustion engine of claim 13, further comprising a ventilated casing, the ventilated case providing an exhaust path for combustion products.
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