Title:
FUEL FLOW CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2008256172
Kind Code:
A
Abstract:
To solve the following problems: in the conventional fuel flow control device, pressurized-fuel flow into a second flow path is prevented by providing a resin filled with lubricating oil in the gap between one end of a rotating shaft and a flow control valve body, thus wear of the resin is caused by rotation of the rotating shaft, and service life of the device is shortened.
In the fuel flow control device, a noncontact labyrinth seal 10 is provided between one end 2b of the rotating shaft 2 and the flow control valve body 5. By the labyrinth seal 10, the pressurized fuel 6 is prevented from flowing directly from a first flow path 3 into the second flow path 4.
Inventors:
IKEGAMI YUKINORI
Application Number:
JP2007101748A
Publication Date:
October 23, 2008
Filing Date:
April 09, 2007
Export Citation:
Assignee:
TAMAGAWA SEIKI CO LTD
International Classes:
F16K39/00; F16J15/447
Domestic Patent References:
| JP2001178106A | 2001-06-29 | |||
| JPH1137305A | 1999-02-12 | |||
| JPH03149103A | 1991-06-25 |
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Masahiro Taguchi
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Masahiro Taguchi
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