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US 10,871,135 B2Granted
Internal combustion engine and method for manufacturing internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHiroya Kato, Tomihisa Tsuchiya
Life of this patent
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Abstract
A high-pressure fuel pump and a protector are coupled to an outer side of an engine body of an internal combustion engine. A wall plate surrounds the high-pressure fuel pump to protect the high-pressure fuel pump. A cover of the high-pressure fuel pump has a flange. The engine body has a mounting surface. The bottom plate and the flange are fastened to the mounting surface by a bolt with the bottom plate held between the flange and the mounting surface.
Claims8
An internal combustion engine comprising:
- a high-pressure fuel pump;
- a plastic protector including a bottom plate and a wall plate extending upward from the bottom plate;
- and
- an engine body, wherein
- the high-pressure fuel pump and the protector are coupled to an outer side of the engine body,
- the wall plate surrounds the high-pressure fuel pump to protect the high-pressure fuel pump,
- the high-pressure fuel pump includes a fuel chamber and a cover that surrounds the fuel chamber, wherein the cover has a flange,
- the engine body has a mounting surface, and
- the bottom plate and the flange are fastened to the mounting surface by a bolt with the bottom plate held between the flange and the mounting surface,
- the bottom plate has a metal collar thorough which the bolt is inserted, and a plastic portion into which the metal collar is embedded,
- the mounting surface is provided on a metal part of the engine body, and
- the metal collar and the plastic portion of the bottom plate are held between the flange and the mounting surface.
9 more elements
A method for manufacturing an internal combustion engine, the method comprising:
- preparing a high-pressure fuel pump including a fuel chamber and a cover that surrounds the fuel chamber, wherein a flange is arranged on the cover;
- preparing a plastic protector including a bottom plate and a wall plate extending upward from the bottom plate, wherein the wall plate surrounds the high-pressure fuel pump to protect the high-pressure fuel pump, wherein the bottom plate has a metal collar though which the bolt is inserted, and a plastic portion into which the metal collar is embedded;
- coupling the high-pressure fuel pump and the protector to an outer side of an engine body of the internal combustion engine;
- arranging a mounting surface on the engine body, wherein the mounting surface is provided on a metal part of the engine body;
- and
- fastening the bottom plate and the flange to the mounting surface by a bolt with the bottom plate held between the flange and the mounting surface, wherein the metal collar and the plastic portion of the bottom plate are held between the flange and the mounting surface.
3 more elements
Dependencies are inferred from the claim text.