Power linkage assembly for a high efficiency internal explosion engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-075/32
F16C-007/02
F16C-003/04
출원번호
US-0396436
(2009-03-02)
등록번호
US-8215280
(2012-07-10)
발명자
/ 주소
Furr, Douglas K.
출원인 / 주소
DF Reserve, LC
대리인 / 주소
Kirton McConkie
인용정보
피인용 횟수 :
3인용 특허 :
42
초록▼
A four-stroke, piston-powered internal explosion (“IE”) engine for providing power output through a rotating crankshaft. The IE engine includes an engine block having power cylinders formed therein for receiving working pistons, bearing means for supporting the crankshaft, and a crankshaft supported
A four-stroke, piston-powered internal explosion (“IE”) engine for providing power output through a rotating crankshaft. The IE engine includes an engine block having power cylinders formed therein for receiving working pistons, bearing means for supporting the crankshaft, and a crankshaft supported within the bearing means having an output end extending outside of the engine block and a plurality of offset power cranks. The IE engine further includes connecting rods operably coupled to the power cranks and configured to transfer power from the working pistons to rotate the crankshaft, and working pistons that are received into the power cylinders and operably coupled to the power cranks. Each working piston has a head end positioned adjacent to a cylinder head to form a compression chamber and is configured to receive power from an explosion of a compressed volume of air/fuel mixture located within the compression chamber, and to transfer the received power to the connecting rods. The IE engine is further configured so that the compressed volume of air/fuel mixture is substantially constant, and a peak compression ratio is maintained, from an angular position of the rotating crankshaft of at least 20 degrees prior to a TDC position of a compression stroke, to an angular position of at least 20 degrees after the TDC position of a power stroke, and prior to detonation.
대표청구항▼
1. An assembly comprising: a piston;a crankshaft having a rotating crank with a lobe, wherein the lobe comprises an arch surface and a concentric surface;a connecting rod having a hub that engages said crank lobe to couple said crankshaft and said connecting rod;said piston operably coupled to said
1. An assembly comprising: a piston;a crankshaft having a rotating crank with a lobe, wherein the lobe comprises an arch surface and a concentric surface;a connecting rod having a hub that engages said crank lobe to couple said crankshaft and said connecting rod;said piston operably coupled to said connecting rod, and adapted to linearly displace in correspondence with said rotation of said crank;an arch surface formed on the hub of said connecting rod that interacts with the arch surface of the crank lobe during the rotation of said crank, wherein during said interaction, said linear displacement of said piston is held momentarily static to provide a dwell while said crank continues to rotate through a range of angular positions. 2. An assembly of claim 1, wherein said piston is operable within a power cylinder to at least partially define a compression chamber in an internal explosion engine, wherein said dwell facilitates maintenance of a constant volume of compressed air/fuel mixture and a desired compression ratio within said compression chamber throughout said range of angular positions of said crank, and wherein a detonation of said compressed air/fuel mixture occurs proximate in time to when said piston resumes its linear displacement following said dwell. 3. An assembly of claim 2, wherein said power cylinder further comprises a cylinder head having a head cavity forming a hemispherical volume. 4. An assembly of claim 3, further comprising: a floating piston cylinder in fluid communication with said power cylinder;a biased floating piston adapted to displace within said floating piston cylinder, wherein upon said detonation, said biased floating piston displaces and accumulates excess potential energy that is subsequently converted into work energy released to said piston during said power stroke. 5. An assembly of claim 2, further comprising a first valve assembly including a valve cam and a corresponding intake valve, and a second valve assembly including a valve cam and a corresponding exhaust valve operable within said internal explosion engine, wherein each of said valve cams comprise a harmonic lobe profile adapted to facilitate simultaneous opening of said intake and exhaust valves during said dwell. 6. An assembly of claim 1, wherein said dwell and said range of angular positions of said crank includes a top dead center position of said piston, as well as various angular positions of said crank occurring prior to and subsequent to an angular position of said crank corresponding to said top dead center position of said piston. 7. An assembly of claim 1, wherein said dwell and said range of angular positions of said crank is centered around a top dead center position of said piston, a linear displacement of said piston ceasing in a first direction for a pre-determined range of angular positions of said crank prior to said top dead center position, and resuming in a second direction for a pre-determined range of angular positions of said crank subsequent said top dead center position. 8. An assembly of claim 1, wherein said arch surface of the crank lobe comprises a truncated pitch cam surface, and wherein said arch surface formed on the hub of said connecting rod comprises a corresponding truncated pitch follower surface that engages said truncated pitch cam surface to facilitate movement along a pitch-line pathway, wherein a shape of each of said truncated pitch cam and follower surfaces is geometrically oriented from a respective swing point, and wherein said connecting rod is swagged at a pre-determined angle past vertical to provide a preponderance angle. 9. An assembly of claim 1, wherein said arch surface of the crank lobe is formed from a circular cam component nested side-by-side and a harmonic cam component, and wherein said arch surface formed on the hub of said connecting rod comprises a substantially heart-shaped surface, wherein said circular cam component mates with a corresponding slot within said connecting rod to cause said connecting rod to oscillate side-to-side, and wherein said harmonic cam surface tracks said heart-shaped follower surface, and wherein said connecting rod is swagged at a pre-determined angle past vertical to provide a preponderance angle. 10. An assembly of claim 1, wherein said range of angular positions comprises a range of travel totaling between about 30 and 70 degrees. 11. An assembly comprising: a piston;a crankshaft having a rotating crank with a lobe, wherein the lobe comprises an arch surface and a concentric surface;a connecting rod having a hub that engages said crank lobe to couple said crank shaft and said connecting rod;said piston operably coupled to said connecting rod, and adapted to linearly displace in correspondence with said rotation of said crank;an arch surface formed on the hub of said connecting rod that interacts with the arch surface of the crank lobe during the rotation of said crank, wherein during said interaction a linear top dead center displacement position of said piston is delayed until after a rotational top dead center position of said rotating crank. 12. An assembly of claim 11, wherein said arch surface of the crank lobe comprises two axially adjacent and radially offset circular surfaces, and wherein said arch surface formed on the hub of said connecting rod comprises two axially adjacent and perpendicular slots alternately engaging with said two offset circular surfaces to delay said linear top dead center displacement position of said piston until after said rotational top dead center position of said rotating crank, and wherein said connecting rod is swagged at a pre-determined angle past vertical to provide a preponderance angle. 13. An assembly of claim 11, wherein said arch surface of the crank lobe is offset counterclockwise to the direction of the crankshaft rotation, and wherein a shaft of said connecting rod is radially offset relative to said hub to delay said linear top dead center displacement position of said piston until after said rotational top dead center position of said rotating crank, and wherein said connecting rod is swagged at a predetermined angle past vertical to provide a preponderance angle.
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