An adjustable fuel nozzle
By designing an adjustable fuel nozzle, multi-dimensional adjustment of fuel flow and injection angle is achieved. Combined with an electronic control system, this solves the problem of traditional fuel stove nozzles being unable to be adjusted, improving combustion efficiency and firepower control precision, and adapting to different cooking needs and cookware shapes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XINTAI QIUSHI ENERGY SAVING TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional oil stoves have fuel nozzles that cannot be adjusted in size and angle, resulting in low combustion efficiency, significant fuel waste, difficulty in precisely controlling firepower, and inability to adapt to different cooking needs and cookware shapes, thus affecting performance and energy efficiency.
An adjustable fuel nozzle was designed to achieve multi-dimensional adjustment of fuel flow and injection angle through a rotating component and a rotary component. Combined with an electronic control system for real-time monitoring and intelligent adjustment, it achieves a fuel flow accuracy of 0.1L/min and a fire control accuracy of ±1%.
It has achieved a breakthrough in combustion performance, with flame patterns adapted to different cookware shapes, and combustion efficiency increased to 92%. It has solved the problems of poor adjustment capability and low flame matching degree of traditional nozzles, and improved energy utilization.
Smart Images
Figure CN224302074U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fuel stoves, specifically relating to an adjustable fuel nozzle. Background Technology
[0002] As a core component of traditional cooking equipment, oil-fired stoves were initially designed to meet basic combustion needs. Their core component, the fuel nozzle, typically employed a fixed structure, with a single orifice diameter and spray angle achieved through machining. This design originated from the standardized production philosophy of early industrialization and has a long history of application in fields such as gas turbines and industrial burners. With the development of energy technology, oil-fired stoves have gradually expanded from industrial settings to civilian applications such as commercial kitchens and outdoor camping, but the fixed nozzle design concept has remained largely unchanged.
[0003] Currently, the fixed nozzles of traditional oil stoves have low combustion efficiency and serious fuel waste due to the inability to adjust the nozzle size and spray angle, and it is difficult to accurately control the firepower. In particular, when dealing with different cooking needs, the fixed nozzles cannot adjust the fuel injection state according to actual needs, resulting in poor matching between the flame and the cookware and incomplete combustion. Existing technology lacks a flexible adjustment mechanism, which cannot adapt to the requirements of different cooking methods or be optimized for different cookware shapes, seriously affecting the performance and energy utilization of oil stoves. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable fuel injector, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An adjustable fuel injector includes,
[0007] The combustion mechanism includes a tube body, a rotating assembly disposed in the inner cavity of the tube body, a nozzle fixedly installed on the top of the tube body, a rotating head rotatably installed on the top of the nozzle, and a combustion nozzle opened on the top of the rotating head.
[0008] The rotary spraying mechanism includes a spray pipe fixedly installed on the outside of the pipe body, a rotating assembly disposed at the end of the spray pipe, and an annular spray groove formed around the other end of the spray pipe.
[0009] As a preferred embodiment of the present invention, the rotary injection mechanism further includes a first injection hole formed at the end of the nozzle and a second injection hole formed at the end of the nozzle.
[0010] In a preferred embodiment of this invention, the first injection holes are arranged in a ring at the end of the nozzle, and the second injection hole is located at the center of the end of the nozzle, with the size of the second injection hole being larger than that of the first injection hole.
[0011] As a preferred embodiment of this utility model, the rotating assembly includes a base located at the bottom of the tube body, an isolation tube fixedly installed on the top of the base, and an adjustment hole opened on the outside of the isolation tube.
[0012] In a preferred embodiment of this utility model, the adjustment holes are arranged in a ring on the outside of the isolation tube, and the isolation tube is movably sleeved in the inner cavity of the tube body to form a layered spray channel.
[0013] As a preferred embodiment of this utility model, the rotating assembly includes a rotating seat fixedly installed on the outside of the tube body, a limiting ring sleeve movably sleeved in the inner cavity of the rotating seat, a support rod fixedly installed on the inner side of the limiting ring sleeve, and a ball bearing movably locked on the outside of the limiting ring sleeve.
[0014] As a preferred embodiment of the present invention, the combustion mechanism further includes a fixed frame fixedly installed on the outside of the tube body, a bracket fixedly installed in the inner cavity of the fixed frame, and an integrated electronic controller fixedly installed at the bottom of the fixed frame.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the stepless adjustment mechanism of the rotating component achieves fuel flow control with an accuracy of 0.1L / min, and the 30°-60° multi-angle injection function of the rotating component allows the flame shape to dynamically adapt to different pot shapes, solving the problem of incomplete combustion of fixed nozzles; the integrated electronic control system achieves firepower control accuracy of ±1% through real-time monitoring and intelligent adjustment, overcoming the defects of traditional nozzles such as poor adjustment capability, low flame matching degree, and insufficient energy utilization, and achieving a breakthrough improvement in the combustion performance of fuel stoves. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;
[0019] Figure 3 This is a partial sectional view of the overall structure of this utility model;
[0020] Figure 4 This is a plan view of the rotating component structure of this utility model.
[0021] In the picture:
[0022] 100. Combustion mechanism; 110. Tube body; 120. Rotating assembly; 121. Base; 122. Isolation tube; 123. Adjustment hole; 130. Nozzle; 140. Rotating head; 150. Combustion nozzle; 160. Fixing frame; 170. Bracket; 180. Integrated electronic controller;
[0023] 200. Rotary spray mechanism; 210. Nozzle; 220. Rotating assembly; 221. Rotating seat; 222. Limiting ring; 223. Support rod; 224. Ball bearing; 230. Annular spray groove; 240. First spray hole; 250. Second spray hole. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0027] Example
[0028] Reference Figures 1-4 This is an embodiment of the present invention, which provides an adjustable fuel injector, including:
[0029] The combustion mechanism 100 includes a tube body 110, a rotating assembly 120 disposed in the inner cavity of the tube body 110, a nozzle 130 fixedly installed on the top of the tube body 110, a rotating head 140 rotatably installed on the top of the nozzle 130, and a combustion nozzle 150 opened on the top of the rotating head 140.
[0030] The rotary spraying mechanism 200 includes a nozzle 210 fixedly installed on the outside of the pipe body 110, a rotating assembly 220 disposed at the end of the nozzle 210, and an annular spraying groove 230 opened around the other end of the nozzle 210.
[0031] The combustion mechanism 100 and the rotary injection mechanism 200 work together to achieve dual adjustment of fuel injection quantity and injection angle. The adjustable nozzle structure formed by the pipe body 110 and the rotating component 120, together with the nozzle 130 and the rotating head 140 to form a multi-level angle adjustment mechanism, can flexibly adjust the flame size and injection direction according to cooking needs. The design of the nozzle 210 and the annular injection groove 230 further optimizes the mixing effect of fuel and air, and significantly improves combustion efficiency.
[0032] Specifically, the rotary injection mechanism 200 also includes a first injection hole 240 opened at the end of the nozzle 210 and a second injection hole 250 opened at the end of the nozzle 210. The first injection hole 240 is distributed in a ring at the end of the nozzle 210, and the second injection hole 250 is located at the center of the end of the nozzle 210. The size of the second injection hole 250 is larger than that of the first injection hole 240.
[0033] The dual injection structure, consisting of a first injection hole 240 and a second injection hole 250, enables staged fuel injection, allowing fuel to be injected at different flow rates and pressures. This ensures the stability of the main flame while enhancing the uniformity of combustion through the auxiliary injection holes. It is suitable for cooking scenarios requiring precise heat control, such as stir-frying which requires concentrated high heat and stewing which requires even low heat. By optimizing the layout of the injection holes, a more scientific fuel distribution is achieved. The annular first injection holes 240 form an outer flame ring, while the centrally located second injection hole 250 provides the main flame. This structure not only improves combustion efficiency but also makes the heat distribution more uniform. The large-sized second injection hole 250 ensures the intensity of the main flame, while the small-sized first injection hole 240 provides auxiliary combustion. Together, they achieve a multi-level angle adjustment range of 30°-60°.
[0034] Furthermore, the rotating assembly 120 includes a base 121 located at the bottom of the tube body 110, an isolation tube 122 fixedly installed on the top of the base 121, and an adjustment hole 123 opened on the outside of the isolation tube 122. The adjustment hole 123 is distributed in a ring on the outside of the isolation tube 122. The isolation tube 122 is movably sleeved in the inner cavity of the tube body 110 to form a layered spray channel.
[0035] The special structural design of the rotating component 120 enables precise control of fuel flow. The adjustment mechanism consisting of the base 121 and the isolation tube 122, together with the annular distribution of the adjustment holes 123, forms an effective layered injection channel. This design allows the fuel to mix with air in layers, which not only improves combustion efficiency but also enables stepless variation of the nozzle size through rotational adjustment, meeting different cooking needs from low heat to high heat. The movable sleeve design of the isolation tube 122 creates a unique layered injection effect. The annular distribution of the adjustment holes 123 and the cooperation of the inner cavity of the tube body 110 form a multi-stage mixing chamber, which allows the fuel to be fully premixed with air before injection, significantly improving combustion efficiency and reducing fuel waste. At the same time, the selection of stainless steel or ceramic materials ensures the durability of the nozzle in high-temperature environments.
[0036] Preferably, the rotating assembly 220 includes a rotating seat 221 fixedly installed on the outside of the tube body 110, a limiting ring 222 movably sleeved in the inner cavity of the rotating seat 221, a support rod 223 fixedly installed on the inner side of the limiting ring 222, and a ball bearing 224 movably locked on the outside of the limiting ring 222.
[0037] The precision mechanical structure of the rotating component 220 enables stable adjustment of the spray angle. The cooperation between the rotating seat 221 and the limiting ring 222, along with the assistance of the support rod 223 and the ball bearing 224, ensures the smoothness and accuracy of the angle adjustment. This design allows users to easily achieve multiple angle adjustments such as 30°, 45°, and 60° through a manual knob, perfectly adapting to cookware of different sizes and shapes.
[0038] Furthermore, the combustion mechanism 100 also includes a fixed frame 160 fixedly installed on the outside of the tube body 110, a bracket 170 fixedly installed in the inner cavity of the fixed frame 160, and an integrated electronic controller 180 fixedly installed at the bottom of the fixed frame 160.
[0039] The addition of the integrated electronic controller 180 enables intelligent control. The stable support structure formed by the fixed frame 160 and the bracket 170 provides a reliable installation base for the electronic control system. This design not only retains the convenience of manual adjustment, but also adds automatic control and remote adjustment functions, enabling the fuel injector to respond more accurately to different cooking needs, greatly improving ease of use and energy efficiency.
[0040] It should be noted that the integrated electronic controller 180 uses a single-chip microcomputer of model STC12C5A60S2 as the main control chip. This chip has a built-in 60K Flash program memory, an operating frequency of 0-35MHz, 32 programmable I / O ports, and supports PWM output control.
[0041] In use, the fuel first passes through the rotating component 120 at the bottom of the tube body 110 and is guided by the base 121 into the isolation tube 122. The fuel is then atomized and layered by the annular distribution of the adjustment holes 123.
[0042] The fuel is then diverted to the nozzle 210, and the injection angle is adjusted by the rotating component 220. The first injection hole 240 forms an annular auxiliary flame, and the second injection hole 250 generates the main flame. At the same time, the integrated electronic controller 180 monitors the temperature and flow rate in real time. The integrated electronic controller 180 dynamically adjusts the deflection angle of the rotating head 140 and the opening of the combustion nozzle 150, so that the fuel and air are fully mixed and a stable and adjustable multi-layer flame is formed in the combustion nozzle 150. This completes the precise control of the entire process from fuel supply and intelligent adjustment to efficient combustion.
[0043] In summary, through the collaborative design of the combustion mechanism 100 and the rotary injection mechanism 200, multi-dimensional intelligent control of fuel injection parameters is achieved. Specifically, the layered injection channels of the rotary component 120, combined with the annular distribution of the adjustment holes 123, enable stepless flow regulation. The precision mechanical structure of the rotating component 220 supports multi-level angle adjustment from 30° to 60°, and the cooperation between the rotating seat 221 and the ball bearing 224 ensures an angle positioning accuracy of ±0.5°. The optimized layout of the first injection hole 240 and the second injection hole 250, which realizes a dual injection structure, significantly improves combustion efficiency. The overall design achieves a breakthrough in performance with precise firepower control and a thermal efficiency of 92%, adapting to all cooking scenarios from simmering over low heat to stir-frying over high heat.
[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An adjustable fuel injector, characterized in that: include, The combustion mechanism (100) includes a tube body (110), a rotating assembly (120) disposed in the inner cavity of the tube body (110), a nozzle (130) fixedly installed on the top of the tube body (110), a rotating head (140) rotatably installed on the top of the nozzle (130), and a combustion nozzle (150) opened on the top of the rotating head (140). The rotary spraying mechanism (200) includes a spray pipe (210) fixedly installed on the outside of the pipe body (110), a rotating assembly (220) disposed at the end of the spray pipe (210), and an annular spray groove (230) opened around the other end of the spray pipe (210).
2. The adjustable fuel injector according to claim 1, characterized in that: The rotary injection mechanism (200) further includes a first injection hole (240) opened at the end of the nozzle (210) and a second injection hole (250) opened at the end of the nozzle (210).
3. An adjustable fuel injector according to claim 2, characterized in that: The first injection hole (240) is distributed in a ring at the end of the nozzle (210), and the second injection hole (250) is located at the center of the end of the nozzle (210). The size of the second injection hole (250) is larger than that of the first injection hole (240).
4. An adjustable fuel injector according to claim 3, characterized in that: The rotating assembly (120) includes a base (121) located at the bottom of the tube body (110), an isolation tube (122) fixedly installed on the top of the base (121), and an adjustment hole (123) opened on the outside of the isolation tube (122).
5. An adjustable fuel injector according to claim 4, characterized in that: The adjustment holes (123) are distributed in a ring on the outside of the isolation tube (122), and the isolation tube (122) is movably sleeved in the inner cavity of the tube body (110) to form a layered spray channel.
6. An adjustable fuel injector according to claim 5, characterized in that: The rotating assembly (220) includes a rotating seat (221) fixedly installed on the outside of the tube body (110), a limiting ring (222) movably sleeved in the inner cavity of the rotating seat (221), a support rod (223) fixedly installed on the inner side of the limiting ring (222), and a ball (224) movably locked on the outside of the limiting ring (222).
7. An adjustable fuel injector according to claim 6, characterized in that: The combustion mechanism (100) also includes a fixed frame (160) fixedly installed on the outside of the tube body (110), a bracket (170) fixedly installed in the inner cavity of the fixed frame (160), and an integrated electronic controller (180) fixedly installed at the bottom of the fixed frame (160).