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公开(公告)号:US5749390A
公开(公告)日:1998-05-12
申请号:US550208
申请日:1995-10-30
Applicant: Rino Ermacora , Pierre Fischbach , Roland Helfer , Martin Walch , Bernard Wattron , Joel Wilhelm
Inventor: Rino Ermacora , Pierre Fischbach , Roland Helfer , Martin Walch , Bernard Wattron , Joel Wilhelm
IPC: F15B13/042 , F15B11/024 , F16K11/00 , F16K11/06
CPC classification number: F15B11/024 , F15B2211/30505 , F15B2211/30525 , F15B2211/3127 , F15B2211/31576 , F15B2211/329 , F15B2211/7054 , Y10T137/2554
Abstract: A valve includes a distributor with four ports and two positions. In a first position, a first non-return valve allows only circulation of a fluid from the first port toward the third port, while the second port and the fourth port are directly in communication with one another. In a second position, the third port and the fourth port are directly in communication with one another, while a second non-return valve allows only circulation of fluid from the third port and the fourth port in communication toward the first port.
Abstract translation: 阀包括具有四个端口和两个位置的分配器。 在第一位置,第一止回阀仅允许流体从第一端口朝向第三端口循环,而第二端口和第四端口彼此直接连通。 在第二位置,第三端口和第四端口彼此直接连通,而第二止回阀仅允许流体从第三端口和第四端口流向第一端口。