IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0695985
(2007-04-03)
|
등록번호 |
US-7721973
(2010-06-14)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
37 |
초록
▼
A valve comprising a body and a plug is disclosed. The body has a pair of ports and a tubular structure having a side wall and an open end and defining interiorly a first subchamber communicating with one port. The wall has an opening. The body defines a second subchamber communicating with the othe
A valve comprising a body and a plug is disclosed. The body has a pair of ports and a tubular structure having a side wall and an open end and defining interiorly a first subchamber communicating with one port. The wall has an opening. The body defines a second subchamber communicating with the other port, extending around the wall and beyond the end to communicate with the end and the opening. The plug has an opening, is mounted to the structure and telescopes between first and second positions. At the second position, the plug is disposed at least partly in the second subchamber and the valve defines, between the ports: a first flow path through the wall opening; and a second flow path through the open end of the structure, via the plug opening. At the first position, the plug and structure restrict flow through the first and second paths.
대표청구항
▼
The invention claimed is: 1. A valve for use with a fluid, said valve comprising: a valve body having: a pair of spaced-apart flow ports; an interior chamber; an interior wall at least partially dividing the interior chamber into a first subchamber to which one of the flow port leads and a second s
The invention claimed is: 1. A valve for use with a fluid, said valve comprising: a valve body having: a pair of spaced-apart flow ports; an interior chamber; an interior wall at least partially dividing the interior chamber into a first subchamber to which one of the flow port leads and a second subchamber to which the other of the flow ports leads, the interior wall having a wall opening therethrough leading between the first subchamber and the second subchamber; an interior opening providing for communication between the first subchamber and the second subchamber; and a further flow port spaced-apart from the interior opening along an axis; and a plug having a plug opening therein, the plug being axially moveable in the interior chamber between and a first position and a second position, wherein at the second position, the plug seals the further flow port and the valve defines: a first flow path between the spaced-apart flow ports, through the wall opening; and a second flow path between the spaced-apart flow ports, through the interior opening and the plug opening, and at the first position, the interior wall seals the plug opening and the plug seals the interior opening and the wall opening, thereby to at least substantially isolate the first subchamber from the second subchamber and to channel the flow through a further flow path for said fluid through the valve body between the other of the flow ports and the further flow port. 2. A valve according to claim 1, wherein the spaced-apart flow ports are each orientated transverse to the axis. 3. A valve according to claim 1, wherein the first flow path and the second flow path collectively define a primary flow path, and wherein the primary flow path and the further flow path are each free of substantial constrictions over their respective lengths. 4. A valve according to claim 1, wherein the valve body has: a first valve seat surrounding the further port and against which the plug is seated in the second position thereof; and a second valve seat surrounding the interior opening, axially spaced from the first valve seat and against which the plug is seated in the first position thereof. 5. A valve according to claim 1, further comprising an actuator for moving the plug between the first position and the second position. 6. A valve according to claim 1, further comprising an actuator for moving the plug between the first position and the second position in response to the temperature of the fluid. 7. A valve according to claim 1, wherein the interior wall telescopes into the plug during movement of the plug from the second position to the first position. 8. A valve according to claim 1, wherein the interior wall extends axially. 9. A valve according to claim 1, wherein the interior wall is semi-cylindrical and the plug has a semi-cylindrical sidewall concentric therewith. 10. A valve according to claim 9, wherein the plug opening and the wall opening each circumscribe an angle of at least about 180°. 11. A valve according to claim 1, wherein the spaced-apart flow ports are substantially aligned with and opposed to one another. 12. A valve according to claim 1, wherein the one flow port and the wall opening are substantially opposed to one another. 13. A valve according to claim 1, wherein the other flow port and the wall opening are substantially aligned with one another. 14. A valve according to claim 1, wherein the one of the flow ports is an outlet port and the other of the flow ports is an inlet port. 15. A valve for use with a fluid said valve comprising: a valve body having a pair of spaced-apart flow ports, said valve body including a tubular structure having a side wall and an open end, the tubular structure defining interiorly a first subchamber in fluid communication with one of the flow orts and the wall having a wall opening therethrough; and defining a second subchamber in fluid communication with the other of the flow ports, the second subchamber extending around the side wall and extending beyond the open end to further fluidly communicate with the open end and the wall opening, a plug having a plug opening and being mounted to the tubular structure for telescopic movement between a first position and a second position wherein: at the second position, the plug is disposed at least in part in the second subchamber and the valve defines: a first flow path between the flow ports through the wall opening; and a second flow path between the flow ports through the open end of the tubular structure and the plug opening; and at the first position, the plug and tubular structure interact to restrict flow through the first flow path and the second flow path wherein the valve body has a further flow port spaced-apart from the open end of the tubular structure along an axis; the plug moves axially between the first position and the second position; at the second position, the plug seals the further flow port; and at the first position of the plug, the valve defines a further flow path for said fluid through the valve body between the other of the flow ports and the further flow port.
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