Fuel oil heating system

Abstract

The utility model belongs to the technical field of fuel oil heating, and particularly provides a fuel oil heating system which comprises a fuel oil heating controller and a fuel oil filter temperature controller. Heating elements are arranged in the fuel tank fuel quantity sensor and heater assembly, the fuel filter outer covering heater assembly and the oil pipe heater assembly; a heating element of the fuel filter externally-wrapped heater assembly is made of a silica gel material. All the heating elements are connected in parallel and then connected to a fuel filter temperature controller; the fuel filter temperature controller is connected with the fuel heating controller; the fuel filter temperature controller is connected to a whole vehicle power supply through a switch end of the relay; the fuel oil heating controller comprises a temperature control switch, one end of the temperature control switch is connected with an ON-gear power switch, and the other end of the temperature control switch is connected to a coil of the relay. And the silica gel heater is adopted to improve the heating uniformity and durability.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel oil heating, in particular to a fuel oil heating system. Background Art

[0002] In low temperature environments, the viscosity of fuel increases and its fluidity decreases, which may make it difficult for the fuel pump to extract fuel and even cause the fuel pipe to be blocked. Some fuels will precipitate waxy components under low temperature conditions, which may clog the fuel filter and fuel injectors, affecting the normal supply of fuel. In cold weather, it is more difficult to start the engine because the fuel has poor fluidity and the lubricating oil has high viscosity, making it difficult to form effective lubrication. In addition, too low fuel temperature may cause damage to fuel system components (such as fuel pumps, fuel injectors, etc.).

[0003] With the rapid development of the automobile industry and the increasing awareness of environmental protection, reducing automobile fuel consumption and emissions has become an important direction for the development of the industry. The fuel heating system can heat the fuel and reduce its viscosity, thereby improving the fluidity of the fuel and ensuring the normal operation of the fuel system. The heated fuel can be better mixed with the air to form a more uniform mixture. This helps to improve the combustion process, improve combustion efficiency, reduce fuel consumption, and reduce harmful substances in exhaust emissions.

[0004] Existing solutions include electric heating, diesel boilers and double-chamber fuel tank heating. However, these technologies all require changes to the original vehicle structure, increasing maintenance and replacement costs, and uneven heating affects fuel fluidity and combustion efficiency, posing safety risks. Summary of the invention

[0005] In order to solve the problem of high viscosity and poor fluidity of fuel and difficulty in starting the engine in low temperature seasons, the utility model provides a fuel heating system.

[0006] The technical solution of the utility model provides a fuel heating system, including a fuel heating controller, a fuel filter temperature controller, a fuel tank fuel level sensor and heater assembly, a fuel filter outsourcing heater assembly and a fuel pipe heater assembly;

[0007] The fuel tank fuel level sensor and heater assembly, the fuel filter outsourcing heater assembly and the fuel pipe heater assembly are all equipped with heating elements inside; the fuel filter outsourcing heater assembly includes a silicone shell, and a wound resistance wire is wound inside the silicone shell as a heating element;

[0008] The heating element of the fuel tank fuel level sensor and heater assembly, the heating element of the fuel filter outsourcing heater assembly and the heating element of the oil pipe heater assembly are connected in parallel to the fuel filter temperature controller; the fuel filter temperature controller is connected to the fuel heating controller;

[0009] The fuel filter temperature controller is connected to the vehicle power supply through the switch end of the relay;

[0010] The fuel heating controller comprises a temperature control switch, one end of which is connected to an ON power switch, and the other end of which is connected to a coil of a relay.

[0011] As a preferred embodiment of the technical solution of the utility model, the heating element of the fuel tank oil level sensor and heater assembly includes a PTC heating sheet;

[0012] The heating element of the oil pipe heater assembly includes a resistance wire heater.

[0013] As a preferred embodiment of the technical solution of the utility model, the fuel tank oil level sensor and the heater assembly are arranged in the fuel tank;

[0014] The fuel filter outsourcing heater assembly is wrapped around the outer periphery of the fuel filter;

[0015] The fuel pipe heater assembly includes a fuel tank fuel outlet pipe heater assembly installed in the pipeline from the fuel tank to the fuel filter and an engine fuel inlet pipe heater assembly installed in the pipeline from the fuel filter to the engine.

[0016] As a preferred embodiment of the technical solution of the utility model, the fuel filter temperature controller is installed at the oil outlet end of the fuel filter, and the fuel heating controller is installed in the chassis wiring harness;

[0017] The relay is installed in the vehicle chassis wiring harness.

[0018] As a preferred embodiment of the technical solution of the utility model, the fuel tank oil level sensor and heater assembly includes a fuel tank heater connector, a fuel level sensor, a fuel level sensor connector, an oil suction pipe, an electronic tube, an oil return pipe, a PTC heater, and a flange;

[0019] The oil suction pipe, electronic tube and oil return pipe are installed at the bottom of the flange, and the fuel tank heater connector and the fuel level sensor connector are installed at the top of the flange; the PTC heater is installed inside the oil suction pipe, and the heating wire of the PTC heater is led out through the oil suction pipe and connected to the fuel tank heater connector; the oil level sensor is installed inside the electronic tube, and the wiring harness of the oil level sensor is led out through the electronic tube and connected to the oil level sensor connector, and is connected to the fuel filter temperature controller through the wiring harness.

[0020] As a preferred embodiment of the technical solution of the utility model, the fuel filter outsourcing heater assembly adopts an annular structure.

[0021] As a preferred embodiment of the technical solution of the utility model, the fuel filter outsourced heater assembly includes an outsourced heater connector and an outsourced shell; an outsourced heater connector is arranged on one side of the outsourced shell so that the outsourced shell is inserted into the periphery of the fuel filter; the outsourced heater connector is connected to the fuel filter temperature controller through a wiring harness.

[0022] As a preferred embodiment of the technical solution of the utility model, the oil pipe heater assembly includes a heating quick-plug connector and a resistance wire heater connected to the heating quick-plug connector; the heating quick-plug connector is connected to the fuel filter temperature controller through a wiring harness.

[0023] As a preferred embodiment of the technical solution of the utility model, the temperature control switch is connected to one end of the relay coil, and the other end of the relay coil is grounded;

[0024] The normally open end of the relay is connected to the vehicle power supply, and the common end of the relay is connected to the fuel filter temperature controller.

[0025] As a preferred embodiment of the technical solution of the utility model, the normally open end of the relay is connected to the power supply of the whole vehicle through a fuse.

[0026] It can be seen from the above technical scheme that the utility model has the following advantages: design and application of multiple heating devices to improve heating efficiency, reduce fuel consumption costs, and optimize energy utilization; PTC heating technology of the fuel tank oil level sensor to achieve fuel tank temperature regulation and improve system reliability and service life; and the use of silicone heaters to improve heating uniformity and durability; improve vehicle performance and low temperature adaptability, and enhance driving safety.

[0027] In addition, the utility model has a reliable design principle, a simple structure and a very broad application prospect.

[0028] It can be seen that compared with the prior art, the present invention has outstanding substantive features and significant progress, and the beneficial effects of its implementation are also obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a working principle diagram of an embodiment of the utility model.

[0031] Figure 2 It is a schematic diagram of the workflow in the embodiment of the utility model.

[0032] Figure 3It is a structural diagram of the oil tank oil level sensor and heater assembly of the utility model.

[0033] Figure 4 It is a structural diagram of the fuel filter outsourcing heater assembly of the utility model.

[0034] Figure 5 It is a structural diagram of the oil pipe heater assembly of the utility model.

[0035] In the figure, 1- oil pipe heater assembly, 2- fuel tank oil level sensor and heater assembly, 3- oil level sensor connector, 4- fuel tank heater connector, 5- oil suction pipe, 6- electron tube, 7- oil return pipe, 8- PTC heater, 9- flange, 10- fuel filter outsourcing heater assembly, 11- fuel filter temperature controller. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] like Figure 1 and Figure 2 As shown, the technical solution of the utility model provides a fuel heating system, including a fuel heating controller, a fuel filter temperature controller, a fuel tank fuel level sensor and heater assembly, a fuel filter outsourcing heater assembly and a fuel pipe heater assembly;

[0038] The fuel tank fuel level sensor and heater assembly, the fuel filter outsourcing heater assembly and the fuel pipe heater assembly are all equipped with heating elements inside; the fuel filter outsourcing heater assembly includes a silicone shell, and a wound resistance wire is wound inside the silicone shell as a heating element;

[0039] The heating element of the fuel tank fuel level sensor and heater assembly, the heating element of the fuel filter outsourcing heater assembly and the heating element of the oil pipe heater assembly are connected in parallel to the fuel filter temperature controller; the fuel filter temperature controller is connected to the fuel heating controller;

[0040] The fuel filter temperature controller is connected to the vehicle power supply through the switch end of the relay;

[0041] The fuel heating controller comprises a temperature control switch, one end of which is connected to an ON power switch, and the other end of which is connected to a coil of a relay.

[0042] Without changing the original vehicle structure, a temperature control switch is used to control the fuel heating system to reduce fuel consumption and electricity consumption, and a silicone heater is used to improve heating uniformity and durability, thereby improving the reliability and performance of the entire fuel system.

[0043] In some embodiments, the heating element of the fuel tank fuel level sensor and heater assembly includes a PTC heating sheet; the heating element of the fuel pipe heater assembly includes a resistance wire heater. The fuel heating controller is electrically connected to each component through a wiring harness to achieve control of the entire heating system. The heating elements of the fuel tank, fuel pipe and fuel filter are connected to the fuel filter temperature controller in parallel to achieve precise temperature control. This allows the fuel system to operate normally in a low temperature environment, improving the reliability and performance of the vehicle.

[0044] In some embodiments, the fuel tank fuel level sensor and heater assembly are disposed in the fuel tank;

[0045] The fuel filter outsourcing heater assembly is wrapped around the outer periphery of the fuel filter;

[0046] The fuel pipe heater assembly includes a fuel tank fuel outlet pipe heater assembly installed in the pipeline from the fuel tank to the fuel filter and an engine fuel inlet pipe heater assembly installed in the pipeline from the fuel filter to the engine.

[0047] The fuel filter temperature controller is installed at the fuel outlet end of the fuel filter, and the fuel heating controller is installed in the chassis wiring harness;

[0048] The relay is installed in the vehicle chassis wiring harness.

[0049] The fuel filter outsourcing heater assembly uses a silicone heater, which is a wound resistance wire as the heating element, and the silicone is mainly used as a shell to protect the resistance wire and provide insulation. The resistance wire is wound inside the silicone, and then the whole is encapsulated in the silicone shell. Silicone heater Silicone heater has the advantages of simple structure, uniform heating, and high flexibility.

[0050] In some embodiments, Figure 3 As shown, the fuel tank oil level sensor and heater assembly 2 includes a fuel tank heater connector 4, a fuel level sensor, a fuel level sensor connector 3, an oil suction pipe 5, an electronic tube 6, an oil return pipe 7, a PTC heater 8, and a flange 9;

[0051] The oil suction pipe 5, the electron tube 6 and the oil return pipe 7 are installed at the bottom of the flange 9, and the fuel tank heater connector 4 and the fuel level sensor connector 3 are installed at the top of the flange 9; the PTC heater 8 is installed inside the oil suction pipe 5, and the heating wire of the PTC heater 8 is led out through the oil suction pipe 5 and connected to the fuel tank heater connector 4; the fuel level sensor is installed inside the electron tube 6, and the wiring harness of the fuel level sensor is led out through the electron tube 6 and connected to the fuel level sensor connector 3, and is connected to the fuel filter temperature controller through the wiring harness.

[0052] The fuel filter outsourcing heater assembly adopts a ring structure. Figure 4 As shown, the fuel filter outsourcing heater assembly 10 includes an outsourcing heater connector and an outsourcing shell; an outsourcing heater connector is arranged on one side of the outsourcing shell so that the outsourcing shell is inserted into the periphery of the fuel filter; the outsourcing heater connector is connected to the fuel filter temperature controller through a wiring harness.

[0053] In some embodiments, Figure 5 As shown, the fuel pipe heater assembly 1 includes a heating quick-plug connector and a resistance wire heater connected to the heating quick-plug connector; the heating quick-plug connector is connected to the fuel filter temperature controller through a wiring harness.

[0054] In some embodiments, Figure 1 As shown, the temperature control switch is connected to one end of the relay coil, and the other end of the relay coil is grounded;

[0055] The normally open end of the relay is connected to the vehicle power supply through a fuse, and the common end of the relay is connected to the fuel filter temperature controller.

[0056] Working process: The fuel filter temperature controller is responsible for monitoring the temperature of the fuel filter and controlling its heating unit. At the same time, the heating units of the oil pipe and the fuel tank are also connected to the fuel filter temperature controller through electrical connections to form independent heating units. When the temperature is lower than the set threshold, the temperature control switch of the fuel heating controller is closed, and the relay coil is energized through the ON power switch. The normally closed end of the relay is disconnected from the common end, and the normally open end is connected to the common end. The vehicle power supply is connected to the parallel connected heating element to start heating; when the temperature is higher than the set threshold, the temperature control switch is disconnected and the heating element stops working. The start and stop of the heating element is controlled by the temperature information detected by the sensor to keep the temperature of each component within an appropriate range. This parallel relationship effectively realizes the precise heating of the fuel tank, oil pipe and fuel filter, ensuring the normal operation of the diesel system in a low temperature environment.

[0057] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A fuel heating system, characterized in that: Including fuel heating controller, fuel filter temperature controller, fuel tank fuel level sensor and heater assembly, fuel filter outsourcing heater assembly and fuel pipe heater assembly; The fuel tank fuel level sensor and heater assembly, the fuel filter outsourcing heater assembly and the fuel pipe heater assembly are all equipped with heating elements inside; the fuel filter outsourcing heater assembly includes a silicone shell, and a wound resistance wire is wound inside the silicone shell as a heating element; The heating element of the fuel tank fuel level sensor and heater assembly, the heating element of the fuel filter outsourcing heater assembly and the heating element of the oil pipe heater assembly are connected in parallel to the fuel filter temperature controller; the fuel filter temperature controller is connected to the fuel heating controller; The fuel filter temperature controller is connected to the vehicle power supply through the switch end of the relay; The fuel heating controller comprises a temperature control switch, one end of which is connected to an ON power switch, and the other end of which is connected to a coil of a relay.

2. The fuel heating system according to claim 1, characterized in that: The heating element of the fuel tank fuel level sensor and heater assembly includes a PTC heating sheet; The heating element of the oil pipe heater assembly includes a resistance wire heater.

3. The fuel heating system according to claim 2, characterized in that: The fuel tank oil level sensor and heater assembly are located in the fuel tank; The fuel filter outsourcing heater assembly is wrapped around the outer periphery of the fuel filter; The fuel pipe heater assembly includes a fuel tank fuel outlet pipe heater assembly installed in the pipeline from the fuel tank to the fuel filter and an engine fuel inlet pipe heater assembly installed in the pipeline from the fuel filter to the engine.

4. The fuel heating system according to claim 3, characterized in that: The fuel filter temperature controller is installed at the fuel outlet end of the fuel filter, and the fuel heating controller is installed in the chassis wiring harness; The relay is installed in the vehicle chassis wiring harness.

5. The fuel heating system according to claim 4, characterized in that: The fuel tank oil level sensor and heater assembly includes a fuel tank heater connector, a fuel level sensor, a fuel level sensor connector, an oil suction pipe, an electronic tube, an oil return pipe, a PTC heater, and a flange; The oil suction pipe, electronic tube and oil return pipe are installed at the bottom of the flange, and the fuel tank heater connector and the fuel level sensor connector are installed at the top of the flange; the PTC heater is installed inside the oil suction pipe, and the heating wire of the PTC heater is led out through the oil suction pipe and connected to the fuel tank heater connector; the oil level sensor is installed inside the electronic tube, and the wiring harness of the oil level sensor is led out through the electronic tube and connected to the oil level sensor connector, and is connected to the fuel filter temperature controller through the wiring harness.

6. The fuel heating system according to claim 5, characterized in that: The fuel filter outsourcing heater assembly adopts a ring structure.

7. The fuel heating system according to claim 6, characterized in that: The fuel filter outsourcing heater assembly includes an outsourcing heater connector and an outsourcing shell; an outsourcing heater connector is arranged on one side of the outsourcing shell so that the outsourcing shell is inserted into the periphery of the fuel filter; the outsourcing heater connector is connected to the fuel filter temperature controller through a wiring harness.

8. The fuel heating system according to claim 7, characterized in that: The fuel pipe heater assembly includes a heating quick-plug connector and a resistance wire heater connected to the heating quick-plug connector; the heating quick-plug connector is connected to the fuel filter temperature controller through a wiring harness.

9. The fuel heating system according to any one of claims 1 to 8, characterized in that: The temperature control switch is connected to one end of the relay coil, and the other end of the relay coil is grounded; The normally open end of the relay is connected to the vehicle power supply, and the common end of the relay is connected to the fuel filter temperature controller.

10. The fuel heating system according to claim 9, characterized in that: The normally open end of the relay is connected to the vehicle power supply through a fuse.

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