Wrapping type heating oil rail device

Abstract

The utility model discloses a wrapping type heating oil rail device, which relates to the technical field of automobile parts and comprises an oil rail assembly and a heating sleeve used for wrapping the oil rail assembly, the inner side wall of the heating sleeve is sequentially provided with a heat preservation pad and a heating pad, and the heating pad is tightly attached to the oil rail assembly. The heating mode that the heating sleeve wraps the oil rail assembly is adopted, the heating sleeve and the oil rail assembly are two independent devices and can be assembled according to production requirements, and work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a wrap-around heated oil rail device. Background Technology

[0002] Ethanol can be produced through agricultural fermentation and distillation, and is therefore considered a renewable energy source. Its octane rating is higher than gasoline, effectively improving engine anti-knock performance, making it a widely used fuel and fuel additive. Using ethanol as fuel can also increase the engine's compression ratio, thereby improving thermal efficiency and power output.

[0003] Today, ethanol gasoline is becoming increasingly popular in the market. Its research and application are becoming increasingly important, directly related to addressing the oil crisis and the increasingly severe climate problem. However, ethanol is difficult to vaporize at low temperatures, which can lead to difficulties in cold starting vehicles, thus limiting its current application and significantly hindering the widespread use of ethanol fuel.

[0004] To address the aforementioned issues, Chinese patent document "A Heated Fuel Rail Device and a Vehicle" (patent application number: 201820954358.1) discloses a heated fuel rail device, comprising multiple sub-fuel rails connected to a main fuel rail, fuel injectors connected to each sub-fuel rail in a one-to-one correspondence, a heating device disposed on the inner wall of each sub-fuel rail, and an electronic control system electrically connected to the heating device. The electronic control system is capable of controlling the heating function of the heating device to be turned on or off based on the ambient temperature signal.

[0005] Chinese patent document "Fuel Heater Assembly with Fuse Effect" (patent application number: 201210033120.2) discloses a heater assembly with fuse effect for a vehicle's cold start system. This system includes a fuel tank, a fuel pump, a feed pipe to a fuel metering valve, a mini fuel rail for inline fuel distribution to the intake manifold, a calibration gasket, and an engine intake manifold. The heater assembly includes: terminals that receive electrical energy from a battery and are controlled by an electronic control unit via a power module with a switching function, wherein the connector is housed within an injection-mounted connector with terminals; an insulating gasket for an inner metal rod; an inner metal rod that conducts current from the terminals to a helical heating element; a heating element that acts as a fuse; a main metal body protecting the inner metal rod; an electrical insulator; a sealing gasket of electrical insulating material; and an outer metal tube that compresses the insulator.

[0006] Chinese patent document “Cold Start Assist System for Ethanol Flexible Engine with Air Inlet and Ethanol Heating” (patent application number: 200680041575.1) discloses a fuel heating system to assist cold start. The fuel heating system has a resistor in each injector, and fuel is heated by a resistor located in the inlet of the injector or by the resistors of all pipe retainers for the nozzle. The three resistors can be used simultaneously, in pairs, or separately, depending on the ethanol heating flow rate and energy consumption requirements.

[0007] In the above-mentioned technical solutions, the heating method is located inside the oil rail or at the oil inlet port of the oil rail. This structure means that it can only be installed and matched by the oil rail manufacturer and cannot be reassembled at the engine factory, which affects the working efficiency. Summary of the Invention

[0008] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a wrap-around heating oil rail device, which uses a heating sleeve to wrap the oil rail assembly for heating. The heating sleeve and the oil rail assembly are two independent devices that can be assembled according to production needs, thereby improving work efficiency.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a wrap-around heated oil rail device, including an oil rail assembly and a heating sleeve for wrapping the oil rail assembly. The inner sidewall of the heating sleeve is provided with a heat insulation pad and a heating pad in sequence, and the heating pad is tightly fitted to the oil rail assembly.

[0010] A further improvement is that the heating jacket includes two shells arranged laterally opposite each other. The shells have a U-shaped structure, and the upper and lower ends of the shells are bent outward to form flanges. The flanges of the two shells are fixed by a locking mechanism.

[0011] A further improvement is that the locking mechanism includes a fixing bolt and a fixing nut.

[0012] A further improvement is that the heating pad is a silicone heating pad.

[0013] A further improvement is that the insulation pad is made of EPE material insulation cotton.

[0014] A further improvement is that an oil inlet connector and a pressure sensor are provided on the top of the oil rail assembly.

[0015] A further improvement is that the top of the heating jacket is provided with a first notch to avoid the oil inlet connector and the pressure sensor.

[0016] A further improvement is that several fuel injectors are installed at the bottom of the fuel rail assembly.

[0017] A further improvement is that: the injector is provided in three parts, located in the middle and at both ends of the fuel rail assembly; the heating jacket is located between the two end injectors, and the bottom of the heating jacket is provided with a second notch to avoid the middle injector.

[0018] A further improvement is that a connecting lug is provided on one side of the oil rail assembly at a position opposite to the two end injectors.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention employs a heating method where the heating jacket wraps around the oil rail assembly. The heating jacket and the oil rail assembly are two independent devices that can be assembled according to production needs, improving work efficiency. To better monitor the heating temperature of the oil rail, a temperature sensor is further integrated into the silicone heating pad to provide accurate temperature signals to the controller.

[0021] In this invention, the inner side of the heating pad is tightly attached to the oil rail assembly, and an insulation pad is provided on the outer side, which improves the heating efficiency. The heating pad has a built-in temperature sensor, which can provide accurate temperature information for the control system. Attached Figure Description

[0022] Figure 1 This is a perspective view of the wrap-around heating oil rail device in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the wrap-around heating oil rail device in an embodiment of this utility model;

[0024] Figure 3 for Figure 2 A bottom view;

[0025] Figure 4 for Figure 2 The left view;

[0026] Figure 5 for Figure 2 The right view;

[0027] Figure 6 This is a schematic diagram of the heating jacket in an embodiment of the present invention.

[0028] Figure label:

[0029] 1-Fuel rail assembly; 11-Fuel inlet connector; 12-Injector; 13-Pressure sensor; 14-Connecting lug;

[0030] 2-Heating jacket; 21-Insulation pad; 22-Heating pad; 23-Shell; 24-Flanged edge; 25-Fixing bolt; 26-Fixing nut; 27-First notch; 28-Second notch. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0032] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0034] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0035] See Figures 1-6 As shown, this utility model embodiment provides a wrap-around heated oil rail device, including an oil rail assembly 1 and a heating sleeve 2 for wrapping the oil rail assembly 1. The inner sidewall of the heating sleeve 2 is provided with a heat insulation pad 21 and a heating pad 22 in sequence, and the heating pad 22 is tightly attached to the oil rail assembly 1.

[0036] See Figure 6 As shown, the heating jacket 2 includes two horizontally opposite shells 23. The shells 23 have a U-shaped structure, and their upper and lower ends are bent outwards to form flanges 24. The flanges 24 of the two shells 23 are fixed by a locking mechanism. Specifically, the locking mechanism includes a fixing bolt 25 and a fixing nut 26. In this embodiment, the heating pad 22 is a silicone heating pad, and a temperature sensor is integrated within the silicone heating pad. The insulation pad 21 is EPE pearl insulation cotton.

[0037] See Figures 1-5 As shown, the top of the fuel rail assembly 1 is provided with an inlet connector 11 and a pressure sensor 13. The top of the heating sleeve 2 is provided with a first notch 27 to avoid the inlet connector 11 and the pressure sensor 13. Specifically, the bottom of the fuel rail assembly 1 is provided with a plurality of injectors 12. In this embodiment, three injectors 12 are provided, located in the middle and at both ends of the fuel rail assembly 1; the heating sleeve 2 is located between the two end injectors 12, and the bottom of the heating sleeve 2 is provided with a second notch 28 to avoid the middle injector 12. Connecting lugs 14 are provided on one side of the fuel rail assembly 1 at positions opposite to the two end injectors 12.

[0038] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A wrapped heated oil rail device comprising an oil rail assembly (1) characterised in that: It also includes a heating sleeve (2) for wrapping the oil rail assembly (1), wherein the inner sidewall of the heating sleeve (2) is provided with a heat insulation pad (21) and a heating pad (22) in sequence, and the heating pad (22) is in close contact with the oil rail assembly (1).

2. The wrapped heating oil rail device of claim 1, wherein: The heating jacket (2) includes two shells (23) arranged laterally opposite each other. The shells (23) have a U-shaped structure, and the upper and lower ends of the shells (23) are bent outward to form flanges (24). The flanges (24) of the two shells (23) are fixed by a locking mechanism.

3. The wrapped heating oil rail device of claim 2, wherein: The locking mechanism includes a fixing bolt (25) and a fixing nut (26).

4. The wrapped heating oil rail device of claim 1, wherein: The heating pad (22) is a silicone heating pad.

5. The wrapped heating oil rail device of claim 1, wherein: The insulation pad (21) is EPE pearl insulation cotton.

6. The wrapped heating oil rail device of claim 1, wherein: The top of the oil rail assembly (1) is provided with an oil inlet connector (11) and a pressure sensor (13).

7. The wrap-around heated oil rail device according to claim 6, characterized in that: The top of the heating jacket (2) is provided with a first notch (27) for avoiding the oil inlet connector (11) and pressure sensor (13).

8. The wrapped heating oil rail device of claim 1, wherein: The bottom of the oil rail assembly (1) is provided with several oil injectors (12).

9. The wrapped heating oil rail device of claim 8, wherein: The injector (12) is provided in three parts, located in the middle and at both ends of the fuel rail assembly (1); the heating sleeve (2) is located between the two end injectors (12), and the bottom of the heating sleeve (2) is provided with a second notch (28) for avoiding the middle injector (12).

10. The wrapped heating oil rail device of claim 9, wherein: The oil rail assembly (1) has connecting lugs (14) on one side opposite to the two end injectors (12).

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