Free piston assembly and method for controlling a free piston assembly
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0686235
(2010-01-12)
|
등록번호 |
US-8601988
(2013-12-10)
|
우선권정보 |
DE-10 2007 035 914 (2007-07-23) |
발명자
/ 주소 |
|
출원인 / 주소 |
- UMC Universal Motor Corporation GmbH
|
대리인 / 주소 |
Muncy, Geissler, Olds & Lowe, PLLC
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
8 |
초록
▼
Free piston assembly, comprising at least one piston accommodating device, at least one piston device having a first piston surface and a second piston surface facing away from the first piston surface, which is moveable in a linear manner in the corresponding piston accommodating device, and an exp
Free piston assembly, comprising at least one piston accommodating device, at least one piston device having a first piston surface and a second piston surface facing away from the first piston surface, which is moveable in a linear manner in the corresponding piston accommodating device, and an expansion space which is arranged in the piston accommodating device and delimited by the first piston surface, wherein the piston device is arranged to be driven by the action of a medium which expands in the expansion space, wherein a resilience space arranged in the at least one piston accommodating device is delimited by the second piston surface, and wherein the resilience space is connected to at least one pre-compression chamber in fluidic manner.
대표청구항
▼
1. A free piston assembly comprising: at least one piston accommodating device;at least one piston device having a first piston surface and a second piston surface facing away from said first piston surface which is moveable in a linear manner in the corresponding piston accommodating device;an expa
1. A free piston assembly comprising: at least one piston accommodating device;at least one piston device having a first piston surface and a second piston surface facing away from said first piston surface which is moveable in a linear manner in the corresponding piston accommodating device;an expansion space which is arranged in the piston accommodating device and delimited by the first piston surface;wherein the piston device is arranged to be driven by the action of a medium which expands in the expansion space;a resilience space arranged in the at least one piston accommodating device, said resilience space being delimited by the second piston surface;wherein the resilience space is connected to at least one pre-compression chamber in fluidic manners; andat least one linearly moveable active element that is connected to the piston device;wherein the at least one piston accommodating device comprises a side from which there is guided out the at least one linearly moveable active element;wherein the at least one active element is guided through the at least one pre-compression chamber;wherein at least one channel, which has a first opening and a second opening, is arranged on the at least one active element;wherein the position of the first opening and the second opening in relation to the resilience space and a pre-compression space of the pre-compression chamber is dependent on the position of the at least one active element; andwherein the pre-compression space and the resilience space are connected together in fluidic manner via the channel in one or more positions of the piston device. 2. A free piston assembly in accordance with claim 1, wherein the expansion space and the resilience space are arranged linearly one behind the other. 3. A free piston assembly in accordance with claim 1, wherein the expansion space and the resilience space are separated by a piston of the piston device which comprises the first piston surface and the second piston surface. 4. A free piston assembly in accordance with claim 1, wherein the internal length of the piston accommodating device is composed of the length of the expansion space, the spacing between the first piston surface and the second piston surface and the length of the resilience space. 5. A free piston assembly in accordance with claim 4, wherein the spacing between the first piston surface and the second piston surface amounts to at most 30% of the entire internal length of the piston accommodating device. 6. A free piston assembly in accordance with claim 1, wherein the at least one active element is a piston rod. 7. A free piston assembly in accordance with claim 1, wherein the side is an end face which is oriented transversely relative to the direction of motion of the piston device. 8. A free piston assembly in accordance with claim 1, wherein a wall, which faces the second piston surface, is arranged at said side. 9. A free piston assembly in accordance with claim 8, wherein the wall delimits the resilience space. 10. A free piston assembly in accordance with claim 9, wherein a bearing for the at least one active element is arranged in the wall. 11. A free piston assembly in accordance with claim 8, wherein the wall has an opening through which the at least one active element is passed. 12. A free piston assembly in accordance with claim 1, wherein the at least one active element is guided partially through the resilience space. 13. A free piston assembly in accordance with claim 1, wherein the at least one active element comprises a coupling for coupling-on an application. 14. A free piston assembly in accordance with claim 1, wherein the expansion space has at least one inlet port associated therewith. 15. A free piston assembly in accordance with claim 14, wherein a valve is arranged at the at least one inlet port. 16. A free piston assembly in accordance with claim 1, wherein the expansion space has at least one outlet port associated therewith. 17. A free piston assembly in accordance with claim 16, wherein a valve is arranged at the outlet port. 18. A free piston assembly in accordance with claim 1, wherein the resilience space is a gas spring space in which a compressible medium is accommodated. 19. A free piston assembly in accordance with claim 1, wherein a control unit is provided for controlling the connection. 20. A free piston assembly in accordance with claim 1, wherein the at least one pre-compression chamber is connected to the resilience space by means of an end face of the piston accommodating device. 21. A free piston assembly in accordance with claim 1, wherein the position or the positions is or are a point of reversal or a point in the proximity of a point of reversal of the piston device. 22. A free piston assembly in accordance with claim 1, wherein at least one linear drive is connectable or is connected to the piston device. 23. A free piston assembly in accordance with claim 22, wherein the at least one linear drive comprises a stator and an actuator which are connected to at least one active element of the piston device. 24. A free piston assembly in accordance with claim 22, wherein the at least one linear drive follows on to the piston accommodating device in a direction parallel to the direction of motion of the piston device. 25. A free piston assembly in accordance with claim 1 wherein the at least one channel has an extension in a direction of linear movement of the at least one active element.
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