Fuel pump flow passage structure
AssigneeZhongshan Peili Technology Co., Ltd.
InventorChunlai Lai
Life of this patent
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Abstract
A novel fuel pumpflow channel passage structure, which comprises an adapter, an air vent valve and a sealing plug, wherein the adapter comprises a body, an input end and an output end; the input end is communicated with the output end through the body; both the input end and the output end have cylindrical inner wall surfaces roughly varying in axial diameters; the input end and the output end define an input pipeline and an output pipeline along the cylindrical inner wall surfaces; the body is provided with an air vent hole and a through hole; the air vent valve is arranged on the air vent hole; and the sealing plug is arranged on the through hole.
Claims16
A novel fuel pumpflow channel passage structure, comprising:
- an adapter, an air vent valve and a sealing plug, wherein
- the adapter comprises a body, an input end and an output end,
- the input end is communicated with the output end through the body,
- the input end of the generally cylindrical inner wall surfaces has a first axial diameter and the output end of the generally cylindrical inner wall surfaces has a second axial diameter, and the input end and the output end define an input pipeline and an output pipeline along the cylindrical inner wall surfaces, wherein the input pipeline defines an input axis continuously passing through a pipeline center of the input pipeline, and the output pipeline defines an output axis continuously passing through a pipeline center of the output pipeline,
- the body is provided with an air vent hole, a hole center of the air vent hole is positioned in a first axial direction of the input axis, and the body is also provided with a through hole, and a hole center of the through hole is positioned in a second axial direction of the output axis,
- the air vent valve is arranged on the air vent hole, and the sealing plug is arranged on the through hole,
- an upper cover of the air vent valve is provided with an air vent cap, a top end of the air vent cap is provided with at least one first air vent hole, and a center of the at least one first air vent hole is positioned on the input axis, and
- a boss is arranged inside the top end of the air vent cap, and the air vent cap and the air vent valve are fixed by the boss.
A novel fuel pumpflow channel passage structure, the novel fuel pumpflow channel passage structure comprising:
- an oil inlet corrugated pipeline, a lead sealing plug, an adapter, an air vent valve and an oil outlet corrugated pipeline, wherein connecting ports at both ends of the adapter are respectively assembled and fixed by using clamping pieces, the oil inlet corrugated pipeline and the oil outlet corrugated pipeline are respectively assembled and fixed at connection ports at two ends of the adapter by using fastening pieces;
- and the adapter is fixedly provided with an oil inlet pipeline of the oil inlet corrugated pipeline, and an end wall surface in the axial direction is provided with an air vent hole position, an air vent valve equipped with an air vent cap is arranged outside the air vent hole position;
- and the adapter is fixedly provided with an oil outlet pipeline of the oil outlet corrugated pipeline, and the end wall surface in the axial direction of the adapter is provided with a through hole, and the lead sealing plug is installed in the through hole, an inner cavity wall of the fastening piece corresponds to the structure of the corrugated pipeline, and a corrugated structure for wedging and fixing is also integrally formed, outer walls at both ends of the adapter are integrally formed with annular bosses for the fastening piece to be fixedly installed.
Dependencies are inferred from the claim text.