Fuel oil heater smoke exhaust elbow with oil baffle ring
By designing a fuel heater exhaust elbow with an oil deflector and adopting a combined structure of flange, oil deflector and sealing cover, the problems of foreign matter intrusion and diesel leakage in exhaust gas treatment are solved, smooth exhaust and sealing are achieved, and diesel volatilization and smoke are prevented.
Patent Information
- Application Number
- CN202423096197.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The exhaust gas treatment structure of the existing fuel heater is prone to mosquitoes and foreign objects entering, and during repair and maintenance, diesel is prone to leak onto the floor and flow near the heater exhaust pipe, causing diesel volatilization, smoke, and water ingress.
A fuel heater exhaust elbow with an oil deflector is designed. The combined structure of the mounting flange, oil deflector and sealing cover prevents diesel, antifreeze and water from coming into contact with the heater exhaust pipe. The exhaust direction is adjusted by a rotary joint to guide the exhaust gas downward for discharge.
It effectively prevents foreign matter from entering, avoids diesel and water from contacting the heater exhaust pipe, prevents diesel from volatilizing and smoking, ensures smooth exhaust, and improves the sealing and maintenance safety of the equipment.
Smart Images
Figure CN223483736U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fuel heaters, specifically relating to a fuel heater exhaust elbow with an oil baffle ring. Background Technology
[0002] Fuel-fired heaters are mainly used in buses, coaches, trucks, and special-purpose vehicles. They rely on diesel fuel to preheat the engine and heat the driver's cab. The heaters operate by burning diesel fuel and releasing exhaust gases vertically downwards.
[0003] Currently, the following method is generally used to treat the exhaust gas of fuel-fired heaters: a hole is pre-reserved in the cabin plate, and after the muffler is installed, the exhaust bellows is inserted into the hole. Although this structure is simple and easy to operate, in actual use, there may be mosquitoes and foreign objects entering, and during maintenance and upkeep, diesel fuel may leak onto the floor and flow to the vicinity of the heater exhaust pipe, causing diesel fuel to evaporate and smoke after being heated, and water may also enter.
[0004] Therefore, how to design a fuel heater exhaust elbow with an oil baffle ring structure has become a problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the present invention provides a fuel heater exhaust elbow with an oil baffle ring. The present invention facilitates the installation of the exhaust elbow on the heater compartment floor of the vehicle by setting the mounting flange. The oil baffle ring and sealing cover prevent foreign objects from entering and also prevent liquids such as diesel, antifreeze, and water from contacting the heater exhaust pipe.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An exhaust elbow for a fuel oil heater with an oil baffle ring includes a mounting flange, an oil baffle ring, a rotary joint, and a guide elbow. The mounting flange is disposed in a pre-reserved opening in the compartment plate. The oil baffle ring is disposed on the upper surface of the mounting flange, and a sealing cap is hinged to the upper surface of the oil baffle ring. The guide elbow is connected to the mounting flange through a rotary joint.
[0008] Furthermore, the upper surface of the oil baffle ring is provided with a half-locked external hexagonal bolt, the sealing cover is rotatably disposed in the half-locked external hexagonal bolt, and a spring is also slidably sleeved in the half-locked external hexagonal bolt, one end of the spring abutting against the bolt head, and the other end of the spring abutting against the sealing cover.
[0009] Furthermore, the upper surface of the oil baffle ring is provided with an arc-shaped limiting groove to limit the rotation angle of the sealing cover.
[0010] Furthermore, the end of the guide bend is horseshoe-shaped, and the opening of the guide bend is angled downwards.
[0011] The beneficial effects of this utility model are as follows: This utility model is installed in the reserved opening of the tank plate by the mounting flange. The setting of the oil baffle ring can prevent residual diesel, antifreeze, water and other liquids on the tank plate from flowing into the reserved opening and contacting the heater exhaust pipe. The setting of the sealing cover can block the oil baffle ring when the fuel heater is not in use, preventing foreign objects from entering the exhaust pipe. The setting of the rotary joint can adjust and change the exhaust direction, effectively guiding the exhaust gas downward. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0013] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0014] In the picture:
[0015] 1. Mounting flange; 2. Oil baffle ring; 3. Rotary joint; 4. Guide elbow; 5. Half-threaded hex bolt; 6. Spring; 7. Arc-shaped limiting groove; 8. Sealing cap. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," "outer," and "one side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] Example 1
[0019] like Figure 1-2As shown, this embodiment discloses a fuel heater exhaust elbow with an oil baffle ring, including a mounting flange 1, an oil baffle ring 2, a rotary joint 3, and a guide elbow 4. The mounting flange 1 is set at a reserved opening in the compartment plate, and the oil baffle ring 2 is set on the upper surface of the mounting flange 1, which can effectively prevent diesel fuel leaking onto the floor due to maintenance and other operations from contacting the exhaust pipe of the fuel heater, preventing diesel fuel from evaporating and emitting smoke due to heat. A sealing cap 8 is hinged to the upper surface of the oil baffle ring 2. The guide elbow 4 is connected to the mounting flange 1 through the rotary joint 3. The rotary joint 3 can change the exhaust direction and can select the optimal exhaust direction according to the vehicle structure layout. The end of the guide elbow 4 is horseshoe-shaped, and the opening of the guide elbow 4 is set obliquely downward, effectively guiding the exhaust gas downward for discharge.
[0020] In a preferred embodiment of this utility model, a semi-engaged hexagonal bolt 5 is provided on the upper surface of the oil baffle ring 2. The sealing cover 8 is rotatably disposed in the semi-engaged hexagonal bolt 5. A spring 6 is also slidably sleeved in the semi-engaged hexagonal bolt 5. One end of the spring 6 abuts against the bolt head, and the other end of the spring 6 abuts against the sealing cover 8. The arrangement of the spring 6 can both make the sealing cover 8 fit tightly against the oil baffle ring 2 and keep the sealing cover 8 stationary after rotation. An arc-shaped limiting groove 7 is also provided on the upper surface of the oil baffle ring 2 to limit the rotation angle of the sealing cover 8, so that the sealing cover 8 completely blocks the air inlet above the oil baffle ring 2 when the fuel heater is not in use.
[0021] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.
Claims
1. A fuel heater exhaust elbow with an oil baffle ring, characterized in that, It includes a mounting flange, an oil baffle ring, a rotary joint, and a guide elbow. The mounting flange is located at a pre-reserved opening in the hatch plate. The oil baffle ring is located on the upper surface of the mounting flange, and a sealing cap is hinged to the upper surface of the oil baffle ring. The guide elbow is connected to the mounting flange through a rotary joint.
2. The exhaust elbow of a fuel heater with an oil baffle ring according to claim 1, characterized in that, The upper surface of the oil baffle ring is provided with a half-locked external hexagonal bolt. The sealing cover is rotatably disposed in the half-locked external hexagonal bolt. A spring is also slidably sleeved in the half-locked external hexagonal bolt. One end of the spring abuts against the bolt head, and the other end of the spring abuts against the sealing cover.
3. The exhaust elbow of a fuel heater with an oil baffle ring according to claim 1, characterized in that, The upper surface of the oil baffle ring is provided with an arc-shaped limiting groove to limit the rotation angle of the sealing cover.
4. The exhaust elbow of a fuel heater with an oil baffle ring according to claim 1, characterized in that, The end of the guide bend is horseshoe-shaped, and the opening of the guide bend is set obliquely downward.