Title:
FUEL CUTTING DEVICE OF FUEL TANK
Document Type and Number:
Japanese Patent JP3481021
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make an auxiliary valve function as a small bore valve and make a main valve and the auxiliary valve prevent flowing of liquid fuel to a canister respectively by providing an interlocking protrusion in one of the main valve and the auxiliary valve, and an interlocking restricting groove in the other of the valves and opening the auxiliary valve seat and the main valve seat independently to an upper part of a case or an end of a passage.
SOLUTION: Fluid fuel flows seldom into a canister from an end of passage even if a surface of the liquid fuel 7 bubbles to some extent as both of a main valve 1 and an auxiliary valve 2 are opened by pushing down all the load of the auxiliary valve 2 to hang on the lower end of a protrusion restricting groove 10 by an interlocking protrusion 9 in spite of the main valve 1 being energized to the upside by a coil spring 14 when the liquid fuel 7 is little. When the surface of the liquid fuel 7 bubbles owing to the increase of the liquid fuel 7, buoyance exerts to a float 16 of the auxiliary valve 2 and the main valve 1 is pushed up by the coil spring 14 by the decrease of the load of the auxiliary valve 2 exerting on the main valve 1 to close a main valve seat 12. A seal 8 of the main valve 1 closes the main valve seat 12 completely.
Inventors:
Shinya Shimada
Hiroshi Takagi
Yujiro Hayashi
Hiroshi Takagi
Yujiro Hayashi
Application Number:
JP23288895A
Publication Date:
December 22, 2003
Filing Date:
September 11, 1995
Export Citation:
Assignee:
O-M Industry Co., Ltd.
International Classes:
B60K15/077; B60K15/035; F02M37/00; F16K24/00; F16K24/04; F16K31/18; F16K31/22; (IPC1-7): F16K24/00; B60K15/077; F02M37/00; F16K31/18; F16K31/22
Domestic Patent References:
| JP6297968A | ||||
| JP2112658A |
Attorney, Agent or Firm:
Kozaburo Mori