Bidirectional output mixed hydraulic power system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04B-023/08
F04B-023/10
F04B-023/12
A61G-013/02
A61G-013/06
F16K-011/044
F15B-011/17
F15D-001/00
F04B-053/10
F04B-023/14
출원번호
US-0507824
(2014-10-06)
등록번호
US-9366242
(2016-06-14)
발명자
/ 주소
Liang, Jyh-Wei
Wu, Wei-Li
Su, Chien-Cheng
Chen, Wei-Jhe
출원인 / 주소
AMTAI MEDICAL EQUIPMENT, INC.
대리인 / 주소
Lei, Leong C.
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
The present invention relates to a bidirectional output mixed hydraulic power system, which includes a hydraulic fluid that stores and contains therein a fluid tank; at least one electrical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least on
The present invention relates to a bidirectional output mixed hydraulic power system, which includes a hydraulic fluid that stores and contains therein a fluid tank; at least one electrical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least one mechanical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least two sequence check valves each connected to the electrical hydraulic pump and the mechanical hydraulic pump, each of the sequence check valves being set normally open in a first direction and preventing fluid returning in a second direction; and a dual pressure valve that is connected to the fluid tank and each of the sequence check valves for switching output direction of the hydraulic fluid.
대표청구항▼
1. A bidirectional output mixed hydraulic power system, comprising: a fluid tank, which contains and stores a hydraulic fluid;at least one electrical hydraulic pump, which is connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid;at least one mechanical hydraulic pump, wh
1. A bidirectional output mixed hydraulic power system, comprising: a fluid tank, which contains and stores a hydraulic fluid;at least one electrical hydraulic pump, which is connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid;at least one mechanical hydraulic pump, which is connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid;at least two sequence check valves, each of which is connected to the electrical hydraulic pump and the mechanical hydraulic pump, each of the sequence check valve being set in a normally open condition in a first direction and in a non-returning condition in a second direction; anda dual pressure valve, which is connected to the fluid tank and each of the sequence check valves for switching output direction of the hydraulic fluid;wherein the electrical hydraulic pump comprises at least two electrical hydraulic pump fluid outlets in different directions, the mechanical hydraulic pump at least comprising a mechanical hydraulic pump outlet, the dual pressure valve at least comprises dual pressure valve fluid inlets and a fluid return ports, the electrical hydraulic pump fluid outlets, the mechanical hydraulic pump outlet, and the dual pressure valve fluid inlets being respectively connected to the sequence check valves, the fluid return port of the dual pressure valve being connected to the fluid tank, each of the sequence check valves comprises a first fluid inlet connected to the respective one of the electrical hydraulic pump fluid outlets, a second fluid inlet connected to the mechanical hydraulic pump outlet, and a common fluid outlet connected to respective one of the dual pressure valve first fluid inlets, the mechanical hydraulic pump is further connected to a manually-operating direction-switching valve, the manually-operating direction-switching valve comprising a direction-switching fluid inlet connected to the mechanical hydraulic pump outlet, direction-switching fluid outlets respectively connected to the second fluid inlets of the sequence check valves, and a manually-operating controller selectively connecting the direction-switching fluid outlets to the direction-switching fluid inlet. 2. The bidirectional output mixed hydraulic power system according to claim 1, wherein the electrical hydraulic pump is coupled to a motor and the motor is operable to drive the electrical hydraulic pump in either the clockwise direction or the counterclockwise direction. 3. The bidirectional output mixed hydraulic power system according to claim 1, wherein the sequence check valves are kept in such a way that when the mechanical hydraulic pump is not in operation, the first fluid inlets are set normally open so that the first fluid inlets are respectively in communication with the common fluid outlets; while when the mechanical hydraulic pump is in operation, the first fluid inlets are closed and the second fluid inlets in respectively in communication with the common fluid outlet. 4. The bidirectional output mixed hydraulic power system according to claim 1, wherein each of the sequence check valves is provided therein with an elastic element so that when the mechanical hydraulic pump is not in operation, the elastic element makes the first fluid inlet normally open. 5. The bidirectional output mixed hydraulic power system according to claim 1, wherein the common fluid outlets of the sequence check valves and the dual pressure valve fluid inlets of the dual pressure valve are further connectable to an external hydraulic system. 6. The bidirectional output mixed hydraulic power system according to claim 5, wherein the external hydraulic system comprises a system fluid port connected to the common fluid outlets and the dual pressure valve fluid inlets. 7. The bidirectional output mixed hydraulic power system according to claim 5, wherein the dual pressure valve further comprises a system low-pressure fluid return port that is connected to the external hydraulic system, the system low-pressure fluid return port being connected to the fluid return port of the dual pressure valve to provide the external hydraulic system with a passage for hydraulic fluid that leaks through clearance and gaps of components to flow back to the fluid tank. 8. The bidirectional output mixed hydraulic power system according to claim 6, wherein the system fluid port is connected to at least two pressure relief valves, each of the pressure relief valves comprising at least one pressure-relief inlet connected to the system fluid port and at least one pressure-relief outlet connected to the fluid tank.
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이 특허에 인용된 특허 (2)
Stolle Klaus (Altenstadt DEX), Hydraulic actuating apparatus for opening and closing a vehicle cover with auxiliary manual hydraulic pump.
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