6-way valve and HVAC system with such a 6-way valve
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-011/087
F24F-011/02
F24D-019/10
F16K-027/06
F16K-027/00
F24F-005/00
출원번호
US-0308520
(2015-05-05)
등록번호
US-9964329
(2018-05-08)
우선권정보
CH-730/14 (2014-05-14)
국제출원번호
PCT/EP2015/059823
(2015-05-05)
국제공개번호
WO2015/173071
(2015-11-19)
발명자
/ 주소
Whitmore, Ryan
Kaufman, Daryl
Keller, Urs
Hotz, Beat
출원인 / 주소
BELIMO HOLDING AG
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
A 6-way valve (20) comprises two similar 3-way sub-valves (20a, 20b) being mechanically coupled with each other, such that both sub-valves (20a, 20b) are always in the same position, whereby each sub-valve (20a, 20b) has three different valve ports (33, 34, 35) and a valve member (22′) with an inter
A 6-way valve (20) comprises two similar 3-way sub-valves (20a, 20b) being mechanically coupled with each other, such that both sub-valves (20a, 20b) are always in the same position, whereby each sub-valve (20a, 20b) has three different valve ports (33, 34, 35) and a valve member (22′) with an internal connecting channel (29), which valve member (22′) can moved between first and second end positions via an intermediate position such that in said first end position the first (33) and third (35) valve ports are connected with each other by means of said connecting channel (29), in said second end position the second (34) and third (35) valve ports are connected with each other by means of said connecting channel (29), and in said intermediate position said connecting channel (29) is disconnected from said first and second valve ports (33, 34). A simple and effective volume/pressure relief means (28) is provided at one of said valve members (22′), which volume/pressure relief means (28) establishes a hydraulic relief connection between said first or second valve port (33, 34) and said third valve port (35) of the respective sub-valve (20a or 20b), when said sub-valves (20a, 20b) are in said intermediate position, and is inactive, when said sub-valves (20a, 20b) are in the first or second end positions.
대표청구항▼
1. A 6-way valve (20) comprising two similar 3-way sub-valves (20a, 20b) mechanically coupled with each other, such that both sub-valves (20a, 20b) are always in the same position, whereby each sub-valve (20a, 20b) has three different valve ports (33, 34, 35) and a valve member (22, 22′) with an int
1. A 6-way valve (20) comprising two similar 3-way sub-valves (20a, 20b) mechanically coupled with each other, such that both sub-valves (20a, 20b) are always in the same position, whereby each sub-valve (20a, 20b) has three different valve ports (33, 34, 35) and a valve member (22, 22′) with an internal connecting channel (29), which valve member (22, 22′) can be moved between first and second end positions via an intermediate position such that in said first end position the first (33) and third (35) valve ports are connected with each other by means of said connecting channel (29), in said second end position the second (34) and third (35) valve ports are connected with each other by means of said connecting channel (29), and in said intermediate position said connecting channel (29) is disconnected from said first and second valve ports (33, 34), characterized in that a volume/pressure relief means (28) is provided at one of said valve members (22, 22′), which volume/pressure relief means (28) establishes a hydraulic relief connection between said first or second valve port (33, 34) and said third valve port (35) of the respective sub-valve (20a or 20b), when said sub-valves (20a, 20b) are in said intermediate position, and is inactive, when said sub-valves (20a, 20b) are in the first or second end positions. 2. The 6-way valve as claimed in claim 1, characterized in that said sub-valves (20a, 20b) are arranged along a common actuating axis (A1), that the valve members (22, 22′) can be rotated around said common actuating axis (A1) between said first and second end positions via said intermediate position. 3. The 6-way valve as claimed in claim 2, characterized in that said valve members (22, 22′) are axially symmetric with respect to said common actuating axis (A1), and that said volume/pressure relief means comprises a groove (28) on the surface of one of said valve members (22, 22′). 4. The 6-way valve as claimed in claim 3, characterized in that said valve members (22, 22′) are spherical balls, that said groove is a ball groove (28), that said internal connecting channels (29) each extend through a respective of said balls (22, 22′) between two ball ports (24, 25) in a plane perpendicular to said common actuating axis (A1), that said valve members (22, 22′) are each supported by sealed ball seats (31, 32) at said first and second valve ports (33, 34), and that said ball groove (28) on the surface of one of said balls (22, 22′) is in the form of a concentric circular ring around one of said ball ports (24, 25). 5. The 6-way valve as claimed in claim 4, characterized in that the radius of said ball groove (28) is chosen such that said ball groove (28) crosses twice the sealed ball seat (31, 32) of said first or second valve port (33, 34), thereby establishing said hydraulic relief connection, when said sub-valves (20a, 20b) are in said intermediate position. 6. The 6-way valve as claimed in claim 4, characterized in that said sub-valves (20a, 20b) are moved between said first and second end positions by a rotation of 90° around said common actuating axis (A1), and that said intermediate position is reached with a rotation of ±45° around said common actuating axis (A1) from said first end second end positions. 7. A HVAC system comprising at least one load (18), which is connected to a heating circuit (12) and a cooling circuit (13) by means of a 6-way valve (20), characterized in that said 6-way valve (20) is a valve according to claim 1. 8. The HVAC system as claimed in claim 7, characterized in that said heating circuit (12) and/or said cooling circuit (13) are connected to an expansion tank (16, 17), that the load (18) is connected to the third valve ports (35) of both said sub-valves (20a, 20b), and that said heating and cooling circuits (12, 13) are connected to said first valve ports (33) and second valve ports (34) of both sub-valves (20a, 20b), respectively, such that said load (18) is connected with an expansion tank (16 or 17) via said volume/pressure relief means (28), when said sub-valves (20a, 20b) are in said intermediate position.
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