公开(公告)号：US20170120207A1

公开(公告)日：2017-05-04

申请号：US15342652

申请日：2016-11-03

申请人： Franz Kaldewei GmbH & Co. KG

发明人： Thomas SCHMIDT ,  Tobias MEYER

IPC分类号： B01F13/04 ,  B01F3/04 ,  B01F5/12 ,  G05D7/01

CPC分类号： B01F13/042 ,  A61H33/02 ,  A61H2033/0033 ,  A61H2033/021 ,  A61H2033/022 ,  A61H2033/023 ,  A61H2201/50 ,  B01F3/0446 ,  B01F3/04503 ,  B01F5/106 ,  B01F5/12 ,  B01F15/0258 ,  F16K17/30 ,  G05D7/0133

摘要： A valve for a plumbing system has a housing with an inlet and an outlet and a valve body movable in the housing between a throttle position with a decreased a flow cross section and reduced flow between the inlet and outlet and an open position with a large flow cross section and free flow between the inlet and outlet. Structure in the valve body applies hydraulic pressure from the inlet or outlet to the valve body to shift same into the throttle position when a pressure differential between the inlet and the outlet exceeds a specified value and into the open position in the absence of a pressure differential between the inlet and the outlet.

公开(公告)号：US20170120202A1

公开(公告)日：2017-05-04

申请号：US15342506

申请日：2016-11-03

申请人： Franz Kaldewei GmbH & Co. KG

发明人： Thomas SCHMIDT ,  Tobias Meyer

IPC分类号： B01F3/04 ,  F04D31/00 ,  B01F15/02 ,  F04D29/42 ,  B01F5/16 ,  B01F13/04 ,  F04D15/00 ,  F04D1/00

CPC分类号： B01F3/0451 ,  A61H33/0087 ,  A61H33/02 ,  A61H2033/0033 ,  A61H2033/0083 ,  A61H2033/022 ,  A61H2033/023 ,  A61H2201/50 ,  A61H2201/5082 ,  B01F3/04503 ,  B01F5/106 ,  B01F5/16 ,  B01F13/042 ,  B01F15/0258 ,  B01F15/026 ,  B01F15/0292 ,  B01F2003/04872 ,  B01F2215/0052 ,  F04B13/00 ,  F04B49/065 ,  F04B53/1077 ,  F04D1/00 ,  F04D15/0022 ,  F04D29/4206 ,  F04D29/4293 ,  F04D31/00 ,  F16K17/30

摘要： A bathwater circulating system has a pump operable to draw fluid in at an intake port and expel it under pressure at an output port. Water- and air-supply conduits feed water and air to the intake port at a rate determined by a flow-restricting air-intake valve so that the pump mixes the water and the air, pressurizes the mixture and thereby dissolves the air in the water, and expels the air/water mixture at the output port. A pressure-reducing valve is connected by an output conduit that extends from the output port to the pressure relief valve and conducts the water/air-bubble mixture from the pump to the pressure-reducing valve without separation of the air from the water and such that the mixture is at least partially depressurized at the pressure-reducing valve such that the air forms microbubbles in the water.