Fuel supply device
By forming a fuel discharge hole through the outer peripheral wall of the valve case to face the sub-tank opening and using a guide wall to direct excess fuel back into the sub-tank, the mold structure is simplified and manufacturing costs are reduced.
JP2025181038APending Publication Date: 2025-12-11AISAN IND CO LTD
Patent Information
- Application Number
- JP2024088782
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-12-11
Smart Images
Figure 2025181038000001_ABST
Abstract
To simplify a mold structure when forming a valve case having a fuel discharge hole.SOLUTION: A fuel supply device 10 includes: a sub tank 30 installed on a bottom inside a duel tank T; a fuel pump which pumps, into an engine, fuel that has been guided from within the fuel tank T into the sub tank 30 and has passed through the fuel filter 34; a relief valve for adjusting a pressure of fuel ejected by the fuel pump; and a valve case 53 provided above the sub tank 30 and containing the relief valve. The valve case 53 has a fuel discharge hole 534h for discharging excessive fuel flowing from the relief valve through an outer peripheral wall of the valve case 53. The fuel discharge hole 534h is oriented downward and is positioned such that it faces a fuel receiving opening 32e of the sub tank 30.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
fuel supply unit
JP6907145B2