Fuel supply apparatus and fuel supply method

Patent metadata

Field	Value
Publication number	US-9689320-B2
Application number	US-201414559590-A
Country	US
Kind code	B2
Filing date	Dec 3, 2014
Priority date	Nov 15, 2007
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

The temperatures of fuel oils stored in fuel tanks 12 a, 12 b, 12 c are separately detected by temperature sensors 52 a, 52 b, 52 c , respectively. Based on the detection results, a CPU 49 heats a heat resistant fuel oil among the fuel oils using a heat exchanger 54 , such that the temperature of an oil mixture generated by mixing the fuel oils satisfies a predetermined temperature condition. After the fuel oils including the heated heat resistant fuel oil are mixed in a blender 13 , the CPU 49 detects the viscosity of the generated oil mixture using a viscometer 33 . Thereafter, based on the detection result, the CPU 49 controls the mixture ratio or a heating temperature of the heat resistant fuel oil, such that the viscosity of the oil mixture satisfies a predetermined viscosity condition.

First claim

The invention claimed is:

1. A fuel supply method comprising:
fuel oil temperature detecting step including separately detecting temperatures of a plurality of fuel including a heat resistant fuel oil and a non-heat resistant fuel oil, wherein the heat resistant fuel oil is selected from a group consisting of an A heavy oil, a B heavy oil, a C heavy oil, kerosene and a light oil;
wherein the non-heat resistant oil is selected from a group consisting of a vegetable oil and biodiesel;
heating step including heating only the heat resistant fuel oil among the fuel oils based on a detection result of the fuel oil temperature detecting step such that the temperature of the oil mixture obtained by mixing the fuel oils becomes a temperature that is set in advance; and
mixing step including generating the oil mixture by arbitrarily combining and mixing the fuel oils including the heat resistant fuel oil.

2. The method of claim 1 , comprising circulating the oil mixture within an engine, wherein the oil mixture comprises the heat resistant fuel oil selected from the group consisting of an A heavy oil, a B heavy oil, a C heavy oil, Kerosene, and a light oil, and the non-heat resistant oil is selected from the group consisting of a vegetable oil and biodiesel fuel.

Assignees

• Yanmar Co Ltd

Inventors

• Yagi Yukio
• Chng Ee Hong
• Ootomo Yuuki

Classifications

• F02D19/0634

  Determining a density, viscosity, composition or concentration (F02D19/087 takes precedence) · CPC title

• B01F15/00175

  Operations & Transport · mapped topic

• B01F15/00207

  Operations & Transport · mapped topic

• F02D19/0657

  Heavy or light fuel oils; Fuels characterised by their impurities such as sulfur content or differences in grade, e.g. for ships · CPC title

• Y02T10/36

  Cross-Sectional Technologies · mapped topic