Engine air inlet pipe integrated with heating function
By embedding heating components in the engine intake pipe, the problem of lack of heating function in the traditional engine intake pipe is solved, and the effect of simplifying production, reducing costs and improving cold start performance is achieved.
Patent Information
- Application Number
- CN202421034626.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The lack of heating function of the air intake pipes of traditional engines leads to the need to be equipped with a separate air intake grille heater assembly, which increases the production line assembly process, reduces production efficiency and increases production costs.
Design an engine air intake pipe with integrated heating function, embedded in air intake heating assembly, including a barrel frame and heating sheet, fixed by threaded connection, combined with the cylinder head, to achieve airtightness and heating effect, reducing zero Parts and assembly steps.
Simplifies production processes, reduces costs, increases engine intake temperature, ensures cold start performance, and reduces assembly complexity and production costs.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to automobile technology, in particular to engine technology. Background Art
[0002] The traditional engine intake pipe can only provide fresh air for the engine, and has no intake heating function. If the fresh air entering the cylinder needs to be heated, it needs to rely on an external separate intake grille heater assembly, which needs to be separately installed between the intake pipe and the intake pipe. At the same time, it is necessary to design and install gaskets at both ends of the intake grille heater to avoid air leakage. This has caused problems such as many assembly processes on the production line, low production efficiency and high production costs. Utility Model Content
[0003] The technical problem solved by the utility model is that the air intake grille heater assembly is separately assembled between the air intake pipe and the air intake connecting pipe, and gaskets need to be designed and assembled at both ends of the air intake grille heater to avoid air leakage, resulting in many assembly steps on the production line, low production efficiency and high production cost.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an engine intake pipe with integrated heating function, the lower surface of which is recessed upward to form an upper cavity, and together with the lower cavity cast integrally with the cylinder head constitute the engine intake duct, an integrally formed air intake main port is provided on the left side of the intake pipe, and an air intake heating assembly is embedded in the air intake main port, the air intake heating assembly includes a frame body and a heating plate arranged in the frame body, the frame body is barrel-shaped, a threaded connecting hole is provided on the outer side wall of the frame body, a connecting through hole corresponding to the threaded connecting hole is provided on the air intake main port, a connecting bolt in the connecting through hole is screwed with the threaded connecting hole to fix the air intake heating assembly embedded in the air intake main port, and the connecting bolt points to the center of the frame body.
[0005] The utility model provides an engine air intake pipe with an integrated heating function. The utility model adopts an integrated structural design, with simple parts structure, lower cost, better heating effect, and no need to assemble the air intake heater assembly separately on the production line, which solves the problems of multiple assembly processes, low production efficiency and high production cost on the production line.
[0006] A stopper structure is provided in the air intake main port to position the air intake heating component front and rear. The connecting bolts are screwed to the threaded connection holes to achieve circumferential positioning, fastening and embedding of the air intake heating component.
[0007] The upper end of the heating plate is fastened to the frame through a stud and a first nut, the first nut is screwed to one end of the stud, and the other end of the stud cooperates with the second nut to realize the connection between the intake heating component and the intake manifold; the lower end of the heating plate is fastened to the frame through a fastening bolt and a third nut, and the frame is provided with a recessed structure, and the fastening bolt and the third nut are located at the recessed structure. The design of the recessed structure enables the intake heating component to be smoothly embedded in the intake manifold. The stud simultaneously realizes the connection between the heating plate and the frame, and the connection between the frame and the intake manifold. Before the engine is started, after the stud is energized, the heating plate begins to heat up and heats the air entering the intake manifold. The rated power of the intake heating component is 1500W. After power is turned on, the temperature rises quickly, which effectively increases the intake temperature of the engine and ensures the cold start performance of the engine.
[0008] The heating plate is supported in the frame by a ceramic insulator.
[0009] The surface of the air intake pipe is provided with a number of integrally formed reinforcing ribs to ensure the rigidity and strength of the air intake pipe.
[0010] The surface of the intake pipe is provided with a number of integrally formed triangular common rail pipe mounting frames for installing the common rail pipe.
[0011] An intake pressure temperature sensor installation interface is provided on the outer surface of the main air intake port. The intake pressure temperature sensor is used to accurately measure the pressure and temperature at the main air intake port. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings:
[0013] Figure 1 It is a schematic diagram of the engine intake pipe of the utility model;
[0014] Figure 2 It is a schematic diagram of the structure of the main air intake port with an embedded air intake heating component;
[0015] Figure 3 It is a schematic diagram of the structure of the air intake heater assembly;
[0016] Figure 4 It is a schematic diagram of the overall installation structure of the engine intake pipe of the utility model.
[0017] Explanation of symbols in the figure:
[0018] 10. Intake pipe; 11. Upper cavity; 12. Intake manifold; 13. Check structure; 14. Reinforcement ribs; 15. Triangular common rail mounting bracket; 16. Intake pressure and temperature sensor mounting interface; 18. Connecting through hole;
[0019] 20. Inlet heating assembly; 21. Frame; 22. Heating plate; 23. Threaded connection hole; 24. Ceramic insulator;
[0020] 31. Connecting bolt; 32. Stud; 33. First nut; 34. Fastening bolt; 35. Third nut; 36. Hexagonal flange bolt;
[0021] 40. Cylinder head; 41. Lower cavity; 42. Machined surface where the upper cavity and the lower cavity meet. DETAILED DESCRIPTION
[0022] refer to Figures 1 to 4 An engine intake pipe with integrated heating function, the lower surface of which is recessed upward to form an upper cavity 11, and the lower cavity 41 cast integrally with the cylinder head 40 together constitutes the engine intake duct, an integrally formed intake manifold 12 is provided on the left side of the intake pipe 10, and an intake heating assembly 20 is embedded in the intake manifold, the intake heating assembly includes a frame 21 and a heating plate 22 arranged in the frame, the frame is in a cylindrical shape, a threaded connection hole 23 is provided on the outer side wall of the frame, a connecting through hole corresponding to the threaded connection hole is provided on the intake manifold, a connecting bolt 31 matched in the connecting through hole 18 is screwed with the threaded connection hole to fix the intake heating assembly 20 embedded in the intake manifold 12, and the connecting bolt points to the center of the frame.
[0023] The upper cavity 11 and the lower cavity 41 are connected and fastened by hexagonal flange bolts 36, and the machined surface 42 where the two are combined is coated with a special sealant to ensure the air tightness of the air intake duct.
[0024] After the intake heating assembly 20 is powered on, it heats the fresh air. The heated fresh air enters the engine combustion chamber through the intake manifold 12 and the intake duct to participate in the engine combustion. In order to ensure the rigidity and strength of the intake pipe 10, four integrally formed 10mm thick reinforcing ribs 14 are provided on the surface of the intake pipe. At the same time, two integrally formed triangular common rail pipe mounting frames 15 are provided on the surface of the intake pipe 10 for the installation of the common rail pipe. An intake pressure temperature sensor mounting interface 16 is provided on the outer surface of the intake manifold 12. The intake pressure temperature sensor is used to accurately measure the pressure and temperature at the intake manifold 12.
[0025] The air intake manifold 12 is provided with a stopper structure 13 to position the air intake heating assembly 20 in the front and rear directions. The connecting bolts 31 are screwed with the threaded connection holes 23 to achieve the circumferential positioning, fastening and embedding of the air intake heating assembly 20. The through hole is equipped with a countersunk structure. The threaded connection hole 23 adopts an M5 threaded hole.
[0026] The upper end of the heating plate 22 is fastened to the frame 21 through a stud 32 and a first nut 33. The first nut is screwed to one end of the stud, and the other end of the stud cooperates with the second nut to achieve the connection between the air intake heating assembly 20 and the air intake manifold 12. The lower end of the heating plate is fastened to the frame 21 through a fastening bolt 34 and a third nut 35. The frame is provided with a recessed structure, and the fastening bolt and the third nut are located at the recessed structure. The design of the recessed structure enables the air intake heating assembly 20 to be smoothly embedded in the air intake manifold 12. The stud 32 simultaneously realizes the connection between the heating plate 22 and the frame 21, and the connection between the frame 21 and the air intake manifold 12. Before the engine is started, after the stud 32 is energized, the heating plate 22 begins to heat up and heats the air entering the main air intake port 12. The rated power of the air intake heating component 20 is 1500W. After power is turned on, the temperature rises quickly, which effectively increases the intake temperature of the engine and ensures the cold start performance of the engine.
[0027] The heating plate 22 is supported in the frame 21 via a ceramic insulator 24 .
[0028] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.
Claims
1. An engine intake pipe with integrated heating function, wherein the lower surface of the intake pipe is recessed upward to form an upper cavity (11), and the lower cavity (41) integrally cast with the cylinder head (40) together constitutes the engine intake passage, an integrally formed intake manifold (12) is provided on the left side of the intake pipe (10), an intake heating assembly (20) is embedded in the intake manifold, and the intake heating assembly comprises a frame (21) and a heating plate (22) arranged in the frame, characterized in that: The frame is cylindrical in shape, with a threaded connection hole (23) provided on the outer wall of the frame, and a connecting through hole corresponding to the threaded connection hole provided on the air intake main port, and a connecting bolt (31) fitted in the connecting through hole is screwed to the threaded connection hole to fix the air intake heating assembly (20) embedded in the air intake main port (12), with the connecting bolt pointing to the center of the frame.
2. The engine intake pipe with integrated heating function as claimed in claim 1, characterized in that: A stop structure (13) is provided in the air intake main port (12) to position the air intake heating component (20) frontward and rearward.
3. The engine intake pipe with integrated heating function as claimed in claim 1, characterized in that: The upper end of the heating plate (22) is fastened to the frame (21) by means of a stud (32) and a first nut (33); the first nut is screwed onto one end of the stud, and the other end of the stud cooperates with the second nut to achieve the connection between the air intake heating assembly (20) and the air intake manifold (12); the lower end of the heating plate is fastened to the frame (21) by means of a fastening bolt (34) and a third nut (35); the frame is provided with a recessed structure, and the fastening bolt and the third nut are located at the recessed structure.
4. The engine intake pipe with integrated heating function as claimed in claim 1, characterized in that: The heating plate (22) is supported in the frame (21) via a ceramic insulator (24).
5. The engine intake pipe with integrated heating function as claimed in claim 1, characterized in that: A plurality of integrally formed reinforcing ribs (14) are provided on the surface of the air inlet pipe (10).
6. The engine intake pipe with integrated heating function as claimed in claim 1, characterized in that: A plurality of integrally formed triangular common rail pipe mounting frames (15) are provided on the surface of the air intake pipe (10) for mounting the common rail pipe.
7. The engine intake pipe with integrated heating function as claimed in claim 1, characterized in that: An intake air pressure temperature sensor mounting interface (16) is provided on the outer surface of the intake main port (12).