Title:
VARIABLE FLOW RATE PUMP
Document Type and Number:
WIPO Patent Application WO/2010/150379
Kind Code:
A1
Abstract:
A water pump (30) is configured comprising an impeller chamber (32), which is formed inside a housing (31), a swirl chamber (40), which is formed inside the housing (31) and is connected to a coolant passage (8) and the impeller chamber (32), and an impeller (33), which is supported rotatably in the impeller chamber (32), and draws coolant, and then discharges the coolant into the coolant passage (8) via the swirl chamber (40) by being coupled to and rotated by an engine (2), wherein the swirl chamber (40) is formed divided into a first swirl chamber (41), which is always connected to the coolant passage (8), and a second swirl chamber (42) and third swirl chamber (43), which are connected to the coolant passage (8) via thermostats (S1, S2) with switch valves that can be opened and closed, and the thermostats (S1, S2) are configured to operate to open and close so that these swirl chambers (42, 43) are connected to or cut off from the coolant passage (8) according to the coolant temperature.
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Inventors:
HOJI TAKESHI (JP)
Application Number:
PCT/JP2009/061598
Publication Date:
December 29, 2010
Filing Date:
June 25, 2009
Export Citation:
Assignee:
TBK CO LTD (JP)
HOJI TAKESHI (JP)
HOJI TAKESHI (JP)
International Classes:
F01P5/10; F04D15/00
Foreign References:
| JPS55130014U | 1980-09-13 | |||
| JPS409667B1 | ||||
| JPS56111294U | 1981-08-28 |
Other References:
None
Attorney, Agent or Firm:
OHNISHI, Shogo (JP)
Shogo Onishi (JP)
Shogo Onishi (JP)
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