Protective construction of fuel pump

Patent metadata

Field	Value
Publication number	US-10519912-B2
Application number	US-201715469579-A
Country	US
Kind code	B2
Filing date	Mar 27, 2017
Priority date	Mar 29, 2016
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

The present invention provides a protective construction of a fuel pump. The protective construction includes a pump shield, disposed on an internal-combustion engine, wherein a specified interval exists at a carriage side of a vehicle in opposite to a high-pressure fuel pump and the pump shield overlaps the high-pressure fuel pump in a front and rear direction. The pump shield includes: a base portion having a width increasing gradually towards the high-pressure fuel pump; a left protective arm portion and a right protective arm portion, extending diagonally and integrally extend upwards from a specified location of the base portion to the side of the high-pressure fuel pump, wherein an interval between the left protective arm portion and the right protective arm portion increases gradually towards the high-pressure fuel pump, and a beam portion, integrally extending between the left protective arm portion and the right protective arm portion.

First claim

What is claimed is:

1. A protective construction of a fuel pump, disposed on an internal-combustion engine and protruding upwards from the internal-combustion engine carried on a vehicle, the protective construction of the fuel pump comprising:
a protective portion, protruding upwards from the internal-combustion engine, provided between a carriage side of the vehicle and the fuel pump with a specified interval from the fuel pump, and overlapping the fuel pump in a front and rear direction,
wherein the protective portion comprises a base portion, having two side surfaces opposite to each other, and a width between the two side surfaces increases gradually from one edge of the base portion away from the fuel pump to another edge of the base portion close to the fuel pump,
wherein the fuel pump comprises a casing, a plunger and a flow control valve.

2. The protective construction of the fuel pump according to claim 1 , wherein
the internal-combustion engine is a multi-cylinder internal-combustion engine transversely carried on the vehicle, and
the fuel pump and the protective portion are configured near a central position between two adjacent cylinders in a state of lining up in the front and rear direction.

3. The protective construction of the fuel pump according to claim 1 , wherein
the internal-combustion engine is a V-type internal-combustion engine that comprises two banks and is transversely carried on the vehicle,
the fuel pump is configured, with respect to a bank at the carriage side of the two banks, in a state of offsetting by a specified distance from a center of the bank to a side of the other bank, and
the protective portion is configured in a space produced due to an offset by the specified distance of the fuel pump.

4. The protective construction of the fuel pump according to claim 2 , wherein
the internal-combustion engine is a V-type internal-combustion engine that comprises two banks and is transversely carried on the vehicle,
the fuel pump is configured, with respect to a bank at the carriage side of the two banks, in a state of offsetting by a specified distance from a center of the bank to a side of the other bank, and
the protective portion is configured in a space produced due to an offset by the specified distance of the fuel pump.

5. The protective construction of the fuel pump according to claim 1 , wherein
the protective portion further comprises:
two pump protective portions, having a left protective arm portion and a right protective arm portion, the two pump protective portions extending diagonally and upwards from a specified location of the base portion to the side of the fuel pump, and having an interval between the left protective arm portion and the right protective arm portion, wherein the interval increases gradually towards the fuel pump; and
a support portion, integrally extending between the two pump protective portions.

6. The protective construction of the fuel pump according to claim 2 , wherein
the protective portion further comprises:
two pump protective portions, having a left protective arm portion and a right protective arm portion, the two pump protective portions extending diagonally and upwards from a specified location of the base portion to the side of the fuel pump, and having an interval between the left protective arm portion and the right protective arm portion, wherein the interval increases gradually towards the fuel pump; and
a support portion, integrally extending between the two pump protective portions.

7. The protective construction of the fuel pump according to claim 3 , wherein
the protective portion further comprises:
two pump protective portions, having a left protective arm portion and a right protective arm portion, the two pump protective portions extending diagonally and upwards from a specified location of the base portion to the side of the fuel pump, and having an interval between the left protective arm portion and the right protective arm portion, wherein the interval increases gradually towards the fuel pump; and
a support portion, integrally extending between the two pump protective portions.

8. The protective construction of the fuel pump according to claim 4 , wherein
the protective portion further comprises:
two pump protective portions, having a left protective arm portion and a right protective arm portion, the two pump protective portions extending diagonally and upwards from a specified location of the base portion to the side of the fuel pump, and having an interval between the left protective arm portion and the right protective arm portion, wherein the interval increases gradually towards the fuel pump; and
a support portion, integrally extending between the two pump protective portions.

9. The protective construction of the fuel pump according to claim 1 , wherein
the protective portion is a protective component that is independent of a main body of the internal-combustion engine and that is screw-fastened on the main body of the internal-combustion engine,
a plurality of screw holes used to screw-fasten the protective component on the main body of the internal-combustion engine are disposed on the base portion of the protective component, and
at least one of the plurality of screw holes and a support portion are configured to line up in a left and right direction of the vehicle.

10. The protective construction of the fuel pump according to claim 2 , wherein
the protective portion is a protective component that is independent of a main body of the internal-combustion engine and that is screw-fastened on the main body of the internal-combustion engine,
a plurality of screw holes used to screw-fasten the protective component on the main body of the internal-combustion engine are disposed on the base portion of the protective component, and
at least one of the plurality of screw holes and a support portion are configured to line up in a left and right direction of the vehicle.

11. The protective construction of the fuel pump according to claim 3 , wherein
the protective portion is a protective component that is independent of a main body of the internal-combustion engine and that is screw-fastened on the main body of the internal-combustion engine,
a plurality of screw holes used to screw-fasten the protective component on the main body of the internal-combustion engine are disposed on the base portion of the protective component, and
at least one of the plurality of screw holes and a support portion are configured to line up in a left and right direction of the vehicle.

12. The protective construction of the fuel pump according to claim 4 , wherein
the protective portion is a protective component that is independent of a main body of the internal-combustion engine and that is screw-fastened on the main body of the internal-combustion engine,
a plurality of screw holes used to screw-fasten the protective component on the main body of the internal-combustion engine are disposed on the base portion of the protective component, and
at least one of the plurality of screw holes and a support portion are configured to line up in a left and right direction of the vehicle.

13. The protective construction of the fuel pump according to claim 5 , wherein
the protective portion is a protective component that is independent of a main body of the internal-combustion engine and that is screw-fastened on the main body of the internal-combustion engine,
a plurality of screw holes used to screw-fasten the protective component on the main body of the internal-combustion engine are disposed on the base portion of the protective component,

Assignees

• Honda Motor Co Ltd

Inventors

• Shimada Kazuyuki
• Furukawa Tetsuji

Classifications

• F02M2200/855

  using clamp elements or fastening means, e.g. bolts or screws · CPC title

• F02M2200/185

  means for improving crash safety · CPC title

• F02M59/44 Primary

  Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; {Pumps having transducers, e.g. to measure displacement of pump rack or piston} · CPC title

• F02M39/02 Primary

  Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives · CPC title

• F02B75/22

  with cylinders in V, fan, or star arrangement · CPC title