EP 2910787 A1 20150826 - WATER SUPPLY DEVICE
Title (en)
WATER SUPPLY DEVICE
Title (de)
WASSERVERSORGUNGSVORRICHTUNG
Title (fr)
DISPOSITIF D'ALIMENTATION EN EAU
Publication
Application
Priority
- JP 2012221876 A 20121004
- JP 2013076476 W 20130930
Abstract (en)
The present invention relates to a water supply apparatus that pressurizes water from a water main pipe to supply the water to a building, such as an apartment building, a commercial building, or the like. The water supply apparatus includes a controller (10) storing a first lower limit value L1 higher than a shutoff rotational speed N0 and a second lower limit value L2 lower than the shutoff rotational speed, which is a rotational speed required for achieving a target pressure PA in a shutoff state. The controller (10) is configured to switch a lower limit of the rotational speed of the pump (1) from the first lower limit value L1 to the second lower limit value L2, and determine that the pump (1) is in a low-flow-rate state if the rotational speed of the pump (1) becomes equal to or lower than the shutoff rotational speed N0 within a predetermined detection time.
IPC 8 full level
F04B 49/06 (2006.01); F04B 49/08 (2006.01); F04B 49/10 (2006.01); F04D 15/00 (2006.01); F04D 15/02 (2006.01)
CPC (source: CN EP)
F04B 49/06 (2013.01 - EP); F04B 49/08 (2013.01 - EP); F04B 49/103 (2013.01 - EP); F04D 15/0066 (2013.01 - EP); F04D 15/0218 (2013.01 - EP); F04D 15/0236 (2013.01 - CN); F04B 2203/0209 (2013.01 - EP); F04B 2205/05 (2013.01 - EP); F05D 2270/03 (2013.01 - EP); F05D 2270/3013 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2910787 A1 20150826; EP 2910787 A4 20160720; EP 2910787 B1 20180725; CN 104704242 A 20150610; CN 104704242 B 20160824; ES 2686333 T3 20181017; JP 6186366 B2 20170823; JP WO2014054554 A1 20160825; WO 2014054554 A1 20140410
DOCDB simple family (application)
EP 13843458 A 20130930; CN 201380051555 A 20130930; ES 13843458 T 20130930; JP 2013076476 W 20130930; JP 2014539716 A 20130930