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Fuel feed device for engine

A technology for a fuel supply device and an engine, which is applied to engine components, machines/engines, liquid fuel feeders, etc., and can solve problems such as complicated structure, required piping, and increased number of parts.

Inactive Publication Date: 2006-06-14
MITSUBA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the fuel supply device filter is not only a large external object, but also has the problems of requiring piping, increasing the number of parts, and complicating the structure. This is the problem to be solved by the present invention.
Furthermore, when the fuel supply device is installed in the fuel tank, it is actually impossible to replace the filter due to clogging, so it is necessary to increase the surface of the filter as much as possible to avoid clogging. The size of the fuel supply device and the size of the main body of the fuel supply device are also increased. This is also a problem to be solved by the present invention.

Method used

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  • Fuel feed device for engine
  • Fuel feed device for engine
  • Fuel feed device for engine

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Embodiment Construction

[0021] The present embodiment will be described below based on the drawings. In the figure, 1 is the housing of the fuel supply device installed in the fuel tank T. The housing 1 is composed of: a cylindrical first bracket (corresponding to the bracket of the present invention) 2 with one end open and one end sealed, and a block The second bracket 3 at the open end of the first bracket 2 is formed; the brackets 2 and 3 are both formed of resin material. In the cylindrical portion 2a of the first bracket 2, a stator 5 that constitutes a motor mechanism and wound with an excitation coil 4 is fitted. In addition, 5a is a deflection yoke arranged on the outer periphery of the stator in a state of being fitted in the cylindrical portion 2a. 6 is a hollow shaft whose ends are stopped and installed in the first and second brackets 2 and 3, and the pump 7 constituting the driven side of the pump mechanism is integrally stopped and installed on the hollow shaft 6. 8 is a rotor core rotatab...

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Abstract

The fuel supply device for the engine of the present invention is provided with a first filter (13) for filtering the inhaled fuel and a filter for discharging the fuel on the bracket (2) of the housing (1) of the built-in pump mechanism and the motor mechanism. The second filter (16) for filtering compacts the fuel supply device for the engine.

Description

Technical field [0001] The present invention relates to a fuel supply device for supplying fuel to an engine. Background technique [0002] Generally, this type of fuel supply device includes a pump mechanism for supplying fuel from a fuel tank to the engine, and a motor mechanism as a power source of the pump mechanism. The mechanism requires filtering when sucking in fuel so that dirt in the fuel tank will not be sucked into the pump. In addition, filtering is also required when the sucked fuel is discharged to the engine side, so that dirt in the pump will not be discharged to the engine side. Therefore, the prior art is a form in which a filter (coarse filter) and an external device are connected to the fuel suction port and the discharge port of the fuel pump through pipes. [0003] Therefore, the fuel supply device filter is not only a large external object, but also has the problems of requiring piping, increasing the number of parts, and complicating the structure. This i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/22B01D35/26F02M37/10F02M37/44F02M37/46
CPCB01D35/26F02M37/103F02M37/46F02M37/44
Inventor 成嶋雅彦森信也
Owner MITSUBA CORP