IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0859506
(2001-05-18)
|
우선권정보 |
AT-199801344 (1998-08-04) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
8 |
초록
▼
A working cylinder (A) having at least one working chamber (6, 7) defined by the cylinder barrel (1), at least one of the end sections (2, 3) and a piston (4), at least one supply port (9a, 9b) and a exhaust port (12a, 12b) for the working medium. The exhaust port (12a, 12b) has a valve (13a, 13b) t
A working cylinder (A) having at least one working chamber (6, 7) defined by the cylinder barrel (1), at least one of the end sections (2, 3) and a piston (4), at least one supply port (9a, 9b) and a exhaust port (12a, 12b) for the working medium. The exhaust port (12a, 12b) has a valve (13a, 13b) that may be regulated by the pressure of the working medium, which is applied at the supply port (9a, 9b) in order to obtain a smaller dimension of at least the valve and to better utilize the already existing space, specifically within the cylinder, and to better and more efficiently adjust the output capacity of the individual elements. A valve (V), particularly a switch valve (W) of a rocker valve design has therefore at least one inlet (16) and at least one outlet (17a, 17b) for the working medium, as wells as at least one control port (18). The cylinder is characterized by a discharge channel (19, 19a; 38a, 38b) for the working medium, originating from a location between the valve element (15; 31, 33) of the valve and at least one outlet (17a, 17b), whereby this discharge channel has a discharge or exhaust valve (20, 22; 36a, 36b), which may be regulated electrically or by the pressure applied to the control port. The pressure-actuated working unit comprises a pneumatic working cylinder (A) with exhaust valves (27a, 27b), a valve (V, W) and exhaust control valves (24a, 24b; 30) as well as only one pressure line (29a, 29b) to each working chamber (6, 7) in the cylinder (A).
대표청구항
▼
1. A rocker valve for supplying pressure medium to and discharging pressure medium from a working device, said rocker valve comprising: a housing defining a hollow interior, a first inlet port for pressure medium, first and second outlet ports for pressure medium, first and second discharge chann
1. A rocker valve for supplying pressure medium to and discharging pressure medium from a working device, said rocker valve comprising: a housing defining a hollow interior, a first inlet port for pressure medium, first and second outlet ports for pressure medium, first and second discharge channels which respectively extend from said first and second outlet ports to respective first and second exhaust ports, first and second valve means in said respective first and second discharge channels, and a control port for control medium, and a rocker sealing element which is pivotally mounted in said hollow interior to either close said first outlet port and open said second outlet port, or open said first outlet port and close said second outlet port, thus enabling pressure medium from said first inlet port to pass through either said first outlet port to the working device or said second outlet port to the working device, with pressure medium returning to an opposite port being discharged through a respective discharge channel and associated exhaust port. 2. A rocker valve according to claim 1, wherein each of said first and second discharge channels defines a seat, and wherein each of said first and second valves includes a sealing element movable toward and away from a respective seat, a membrane exposed to the interior chamber, and a shaft which connects the membrane to the sealing element to move the sealing element away from the seat and open the discharge channel. 3. A valve according to claim 2, wherein said rocker sealing element sealingly divides said hollow interior chamber into separate first and second chambers and each of said first and second chambers into a working subchamber and a control subchamber, and wherein said first outlet port communicates with said working subchamber of said first chamber and said second outlet port communicates with said working subchamber of said second chamber. 4. A valve according to claim 3, wherein said first discharge channel communicates with said control subchamber of said first chamber and said second discharge channel communicates with said control subchamber of said second chamber. 5. A valve according to claim 3, wherein said first inlet port communicates with said working subchamber of said first chamber, and including a second inlet port which communicates with said working subchamber of said second chamber.
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