Patent ID: 6537451
Filing Date: 2003-03-25
Classification: B01D,F16K,G01N,Y10T

Abstract:
A rotary valve for linking several groups of hoses referenced group G1, group G2 and group G3, whereby said valve comprises:a stator comprising: a support face, at least two concentric grooves arranged on the support face, each groove communicates with one of the hoses of the group G1, a first series of at least two passages arranged on a circle Cext concentric of said grooves, each passage of the first series communicates with one hose of the group G3 for passing a fluid F1, and a second series of at least two passages arranged on a circle Cint concentric of said grooves, each passage of the second series communicates with one hose of the group G3 passing a fluid F2, said passages of the first series and said passages of the second series have passage sections respectively S1 and S2, the S1/S2 ratio is 2 to 10, a rotor comprising: a lower face which is in contact with the support face of the stator, or optionally in contact with the stator through a liner, at least two hoses of the group G2 for linking one of said grooves with one of said passages of the first series, at least two slots arranged on the lower face, or optionally arranged on the liner, for linking one of said passages of the first series with one of said passages of the second series.