IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0125920
(1998-12-28)
|
우선권정보 |
SE0000748 (1996-02-27) |
국제출원번호 |
PCT/SE97/00329
(1997-02-26)
|
§371/§102 date |
19981228
(19981228)
|
국제공개번호 |
WO-9732128
(1997-09-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Amersham Pharmacia Biotech AB, SEX
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
18 인용 특허 :
3 |
초록
▼
The invention relates to a pump system for providing and maintaining a controlled outflow, comprising a couple of piston pump units (1a, 1b), having at least two cylinders (2a, 2b, 2c, 2d) each with a piston (3a, 3b, 3c, 3d) slidably arranged in each cylinder. It further comprises devices for contro
The invention relates to a pump system for providing and maintaining a controlled outflow, comprising a couple of piston pump units (1a, 1b), having at least two cylinders (2a, 2b, 2c, 2d) each with a piston (3a, 3b, 3c, 3d) slidably arranged in each cylinder. It further comprises devices for controllably moving the piston in each cylinder, namely by an eccentric wheel (15a, 15b, 15c, 15d) for each of the pistons, acting on one end thereof. There is also provided a control unit for dynamically changing the speed of movement of the devices for moving the piston, in response to pressure changes in the system on the pressure side, for maintaining a desired flow out of the pump. The pump system further comprises switching valves (10a, 10b) for proportioning solutions to be mixed according to a predetermined ratio, the valves being switchable between each source of solutions (A, B, A', B') and are controlled by a control unit having integrating method for integrating the flow during suction from a first source of solution to be mixed, and a method for switching to another source of solution when the integration corresponds to the predetermined proportion of the solution being sucked.
대표청구항
▼
[ What is claimed is:] [1.]1. A pump system for providing and maintaining a stable flow, comprising a first and a second pump unit, each pump unit comprisingi) two cylinders (2a, 2b) with a piston (3a, 3b) slidably arranged in each cylinder;ii) moving means (15a, 15b, 15c, 15d, 17, 19) for independe
[ What is claimed is:] [1.]1. A pump system for providing and maintaining a stable flow, comprising a first and a second pump unit, each pump unit comprisingi) two cylinders (2a, 2b) with a piston (3a, 3b) slidably arranged in each cylinder;ii) moving means (15a, 15b, 15c, 15d, 17, 19) for independently moving the pistons in said cylinders;iii) stepper motor means (22a, 22b, 22c, 22d) for causing said independent movement of each of said moving means (15a, 15b, 15c, 15d, 17, 19) to cause said movement of the pistons;iv) a control unit (21, 22) for dynamically changing the speed of movement of said pistons, in response to measurement data indicative of pressure changes in the system on the pressure side.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.