[미국특허]
Damper with pressure-sensitive compression damping
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16F-009/34
F16F-009/44
F16F-009/512
출원번호
US-0123184
(2008-05-19)
등록번호
US-9103401
(2015-08-11)
발명자
/ 주소
Fox, Robert C.
출원인 / 주소
Fox Factory, Inc.
대리인 / 주소
Patterson & Sheridan, LLP
인용정보
피인용 횟수 :
0인용 특허 :
65
초록▼
A damper includes a piston rod, a damping piston, at least one cylinder containing a damping liquid, a fixed partition member for partitioning the interior of the damper into two liquid chambers, a pressure source, and a valve in communication with the pressure source which reacts as a function of t
A damper includes a piston rod, a damping piston, at least one cylinder containing a damping liquid, a fixed partition member for partitioning the interior of the damper into two liquid chambers, a pressure source, and a valve in communication with the pressure source which reacts as a function of the pressure. The valve can also be in communication with additional forces, such as mechanical spring forces, which can be adjustable. The valve can include a pressure intensifier. The valve generates fluid flow resistance during flow of liquid in a first direction through the partition member. The fluid flow resistance in the first direction varies according to the amount of force communicated to the valve by the pressure source and any additional forces. The partition member can include means for providing low-resistance return flow of liquid in a second direction.
대표청구항▼
1. A damper operable between a compressed position and an extended position, comprising: a compression chamber containing damping fluid and having a compression volume variable in response to operation of the damper between the positions;an internally pressurized chamber having a fluid therein;a bar
1. A damper operable between a compressed position and an extended position, comprising: a compression chamber containing damping fluid and having a compression volume variable in response to operation of the damper between the positions;an internally pressurized chamber having a fluid therein;a barrier separating the internally pressurized chamber fluid from the damping fluid;the intensifier valve disposed intermediate of the barrier and the compression chamber, wherein a reserve chamber is formed between the intensifier valve and the barrier; andan intensifier valve with an intermediate space provided therein vented to the pressure environment external to the damper, the intensifier valve including a piston having a first position restricting fluid flow between the compression and reserve chambers and a second position providing fluid communication between the compression and reserve chambers, the piston having a first piston surface area and a second piston surface area, wherein the first piston surface area is less than the second piston surface area, the first piston surface area in fluid communication with the compression chamber, the second piston surface area in fluid communication with the reserve chamber and a third piston surface area in fluid communication with the intermediate space, wherein a volume of the intermediate space is variable. 2. The damper of claim 1, wherein the sum of the first piston surface area and the third piston surface area are equal to the second piston surface area. 3. The damper of claim 1, further including a partition located between, and spaced from, the intensifier valve and a damping piston, the partition including a compression flow port extending therethrough. 4. The damper of claim 3, wherein the compression flow port in the partition is selectively blocked by the intensifier valve piston when the intensifier valve piston is in the first position. 5. The damper of claim 3, wherein the partition includes at least one rebound flow port extending therethrough. 6. The damper of claim 1, wherein the surface of the third piston surface area exposed to the intermediate space is maintained at atmospheric pressure. 7. The damper of claim 1, wherein the intensifier valve further includes at least one bidirectional flow passage therethrough. 8. A damper operable between a compressed position and an extended position, comprising: a compression chamber containing damping fluid and having a compression volume variable in response to operation of the damper between the compressed and extended positions;an internally pressurized chamber having a fluid therein;a barrier separating the internally pressurized chamber fluid from the damping fluid;an intensifier valve disposed intermediate of the barrier and the compression chamber, wherein a reserve chamber is formed between the intensifier valve and the barrier; anda partition disposed adjacent the intensifier valve on a side of the intensifier valve opposite to the position of the barrier, the partition including a compression flow port extending therethrough, the intensifier valve including an intermediate space provided therein, the intensifier valve including a piston having a first position blocking the passage of fluid through the compression flow port and thereby blocking fluid flow between the compression and reserve chambers and a second position spaced from the compression flow port and thereby providing fluid communication between the compression and reserve chambers, the piston having a first piston surface area and a second piston surface area, wherein the first piston surface area is less than the second piston surface area, the first piston surface area in fluid communication with the compression chamber, the second piston surface area in fluid communication with the reserve chamber; anda third piston surface area in fluid communication with the intermediate space, wherein a volume of the intermediate space is variable. 9. The damper of claim 8, wherein the intermediate space is vented to atmosphere. 10. The damper of claim 9, wherein the intensifier valve piston is, in a free state, biased to the first position. 11. The damper of claim 1, wherein the intensifier valve piston is normally biased in the first position. 12. The damper of claim 1, further comprising: a damper cylinder having a wall and a longitudinal bore therethrough surrounded by the wall,a piston rod at least partially disposed in the damper cylinder bore and longitudinally movable relative to the damper cylinder;a damping piston disposed in the damper cylinder bore, longitudinally coupled to the piston rod, and defining a first end of the compression chamber. 13. The damper of claim 12, further comprising: a rebound chamber containing the damping fluid;a seal head longitudinally coupled to the damper cylinder, and having a longitudinal opening therethrough, and defining a first end of the rebound chamber,wherein the piston rod is disposed through the seal head opening and the damping piston defines a second end of the rebound chamber. 14. The damper of claim 13, wherein the damping piston comprises: a compression valve operable to restrict fluid flow from the compression chamber to the rebound chamber, anda rebound valve operable to restrict fluid flow from the rebound chamber to the compression chamber. 15. The damper of claim 14, wherein the intensifier valve is disposed in the damper cylinder and defines a first end of the reserve chamber. 16. The damper of claim 8, further comprising: a damper cylinder having a wall and a longitudinal bore therethrough surrounded by the wall,a piston rod at least partially disposed in the damper cylinder bore and longitudinally movable relative to the damper cylinder;a damping piston disposed in the damper cylinder bore, longitudinally coupled to the piston rod, and defining a first end of the compression chamber. 17. The damper of claim 16, further comprising: a rebound chamber containing the damping fluid;a seal head longitudinally coupled to the damper cylinder and having a longitudinal opening therethrough, and defining a first end of the rebound chamber,wherein the piston rod is disposed through the seal head opening and the damping piston defines a second end of the rebound chamber. 18. The damper of claim 17, wherein the damping piston comprises: a compression valve operable to restrict fluid flow from the compression chamber to the rebound chamber, anda rebound valve operable to restrict fluid flow from the rebound chamber to the compression chamber. 19. The damper of claim 18, wherein the intensifier valve is disposed in the damper cylinder and defines a first end of the reserve chamber.
Vander Laan John S. (4931 Encinita St. Temple City CA 91780) Bouvier Robert A. (4931 Encinita St. Temple City CA 91780), Shock absorber with adjustable spring load.
Korosladanyi Jozsef (Budapest HUX) Szabo Sandor (Budapest HUX) Madi Jeno (Budapest HUX) Vad Laszlo (Visgrad HUX) Farkas Otto (Budapest HUX), Spring leg which has a load proportionally limited damping, consisting of an air suspension and a telescopic shock absor.
Johnston Gary Lee ; Longhouse Richard Edward ; Kruckemeyer William Charles ; Oliver Michael Leslie ; Mills Donelle Robert, Suspension damper for motor vehicle.
Heinz Norbert,DEX ; Kuhnel Joachim,DEX ; Kutsche Thomas,DEX ; Manger Thomas,DEX ; Assiioff Thorsten,DEX ; Heyn Steffen,DEX ; Wirth Alfred,DEX, Valve which reacts as a function of pressure, especially for a vibration damper.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.