Engine

Abstract

The engine comprises a casing, a reed valve seat, an air inlet pipe and an air cylinder body, the casing comprises an upper casing and a lower casing which are covered up and down, an air inlet is formed in the top of the upper casing, a mounting boss is arranged on the peripheral side of the air inlet, an end cover is arranged at the end of the casing, the end cover is fixed with the upper casing and the lower casing at the same time, and the reed valve seat is arranged on the upper casing and the lower casing. A mounting boss is arranged on the casing, the reed valve seat is mounted on the mounting boss, a reed valve is arranged in the reed valve seat, the air inlet pipe is mounted on the reed valve seat, and the air cylinder bodies are arranged on the two sides of the casing. According to the utility model, the structure is compact, the size is small, the overall mass is reduced, the casing is of an up-and-down split structure, the disassembly and the installation are convenient, the overall installation strength and consistency are enhanced through the end cover, the mass of the whole machine is reduced under the condition that the strength is met, the reed valve is simple in structure and not easy to damage, and the limiting plate is arranged, so that the cost is reduced. Opening and closing of the reed valve are guaranteed, the service life of the reed valve is prolonged, and the air inflow is effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an engine with compact structure, small volume and high strength. Background Art

[0002] In existing technology, small aircraft engines strive to maximize their power-to-weight ratio while meeting power requirements. Within a given power output, the overall weight of the engine is minimized. Traditional aircraft engine casings are heavy and bulky. The casings are split left and right, resulting in poor mounting strength and consistency. Furthermore, the complex design of the intake duct assembly makes it difficult to accurately control the intake volume, compromising engine reliability and safety.

[0003] Therefore, it is necessary to provide an engine to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide an engine.

[0005] According to one aspect of the present invention, an engine is provided, comprising:

[0006] The casing comprises an upper casing and a lower casing that are covered with each other, an air inlet is provided on the top of the upper casing, a mounting boss is provided on the periphery of the air inlet, and an end cover is provided at the end of the casing, and the end cover is fixed to both the upper casing and the lower casing;

[0007] a reed valve seat, the reed valve seat being mounted on the mounting boss, and a reed valve being provided in the reed valve seat;

[0008] an air intake pipe, the air intake pipe being mounted on the reed valve seat;

[0009] The cylinder bodies are arranged on both sides of the casing.

[0010] Preferably, threaded holes and weight-reducing grooves are provided on both end surfaces of the upper receiver, and threaded holes and weight-reducing grooves are provided on both end surfaces of the lower receiver.

[0011] Preferably, an end cover groove is provided at the end of the receiver, an annular boss is provided on one side of the end cover for embedding in the end cover groove, through holes and weight-reducing ports are provided on the end cover corresponding to the threaded holes and weight-reducing grooves on the end faces of the upper and lower receivers, and mounting ears are provided on both radial sides of the end cover.

[0012] Preferably, cylinder mounting platforms for fixing the cylinder body are further provided on both sides of the upper and lower casings, reinforcing ribs are provided between the mounting bosses and the cylinder mounting platform of the upper casing, and four first mounting holes are arranged in a rectangular shape on the mounting bosses.

[0013] Preferably, the reed valve seat includes a seat body and a mounting flange located at the bottom of the seat body, and a second mounting hole is provided on the mounting flange corresponding to the first mounting hole.

[0014] Preferably, the reed valve includes a skeleton, a reed and a limit plate, the skeleton includes a connector and an air intake frame fixed below the connector, the connector includes a connecting flange fixed on the top of the seat body and a connecting frame extending downward from the connecting flange, the connecting frame includes oppositely arranged inverted triangular side walls and a mounting wall located between the side walls and extending along the two oblique sides of the side walls.

[0015] Preferably, the air intake frame includes a first air intake plate and a second air intake plate that are arranged in a V-shape and have the same structure, and a plurality of air vents are formed on the first air intake plate.

[0016] Preferably, the spring includes a fixing portion for fixing on the installation wall and a blocking portion for covering and sealing the vent.

[0017] Preferably, the limiting plate is installed on the outside of the spring leaf, and includes a mounting portion on the mounting wall for fixing and a limiting portion bent downward.

[0018] Compared with the prior art, the engine provided by the present invention has the following beneficial effects:

[0019] Due to the adoption of the above technical solution, the utility model has a compact structure, small size and reduced overall mass. The casing has an upper and lower split structure, which is convenient for disassembly and installation. At the same time, the overall installation strength and consistency are enhanced by the end cover. While meeting the strength requirements, the mass of the whole machine is reduced. The reed valve has a simple structure and is not easy to be damaged. The setting of the limit plate ensures the opening and closing of the reed valve, extends the service life of the reed valve, and effectively controls the intake volume, thereby effectively controlling the speed and output power. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 A perspective view of the engine of the present invention;

[0022] Figure 2 A perspective view of the casing of the present invention;

[0023] Figure 3 A three-dimensional diagram of the end cover of the present invention;

[0024] Figure 4 A three-dimensional diagram of the reed valve seat of the present invention;

[0025] Figure 5 A three-dimensional diagram of the reed valve of the present invention;

[0026] Figure 6 This is an exploded view of the reed valve of the present invention.

[0027] Among them, 1. Receiver, 11. Upper receiver, 111. Air inlet, 112. Mounting boss, 113. Reinforcement rib, 114. Upper end cover groove, 115. First mounting hole, 12. Lower receiver, 121. Lower end cover groove, 13. End cover, 131. Annular boss, 132. Through hole, 133. Weight reduction port, 134. Mounting ear, 141. Threaded hole, 142. Weight reduction groove, 143. Cylinder mounting platform, 2. Reed valve seat, 21. Seat body, 22. Mounting flange, 23. Two mounting holes, 3. Reed valve, 31. Skeleton, 311. Connecting body, 3111. Connecting flange, 3112. Connecting frame, 31121. Side wall, 31122. Mounting wall, 312. Intake frame, 3121. First intake plate, 3122. Second intake plate, 3123. Vent, 32. Reed, 321. Fixing part, 322. Baffle part, 33. Limiting plate, 331. Mounting part, 332. Limiting part, 4. Intake pipe, 5. Cylinder block, 6. Crankshaft. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0030] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0031] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0032] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0034] See also Figure 1 and Figure 2 This embodiment discloses an engine, comprising a casing 1, a reed valve seat 2, an intake pipe 4 and a cylinder block 5. The casing 1 comprises an upper casing 11 and a lower casing 12 which are covered with each other, and a crankshaft 6 is provided in the casing 1. An air inlet 111 is provided at the top of the upper casing 11, and a mounting boss 112 is provided on the circumference of the air inlet 111. An end cover 13 is provided at the end of the casing 1, and the end cover 13 is fixed to both the upper casing 11 and the lower casing 12. The reed valve seat 2 is mounted on the mounting boss 112, and a reed valve 3 is provided in the reed valve seat 2. The intake pipe 4 is mounted on the reed valve seat 2, and the cylinder block 5 is provided on both sides of the casing 1.

[0035] See also Figure 2 and Figure 3 Threaded holes 141 and weight-reducing grooves 142 are provided on both end surfaces of the upper casing 11, and threaded holes 141 and weight-reducing grooves 142 are provided on both end surfaces of the lower casing 12. An upper end cover groove 114 is provided at the end of the upper casing 11, and a lower end cover groove 121 is provided at the end of the lower casing 12. When the upper and lower casings 11, 12 are assembled, the upper and lower end cover grooves 114, 121 form a circular end cover groove. An annular boss 131 is provided on one side of the end cover 13 for insertion into the end cover groove. Through holes 132 and weight-reducing openings 133 are provided on the end cover 13, corresponding to the threaded holes 141 and weight-reducing grooves 142 on the end surfaces of the upper and lower casings 11, 12. Through holes 132 and weight-reducing openings 133 extend through the annular boss 131. Mounting ears 134 are provided on both radial sides of the end cover 13 for mounting sensors to monitor the engine's operating status in real time.

[0036] Cylinder mounting platforms 143 for fixing the cylinder block 5 are also provided on both sides of the upper casing 11 and the lower casing 12. Reinforcing ribs 113 are provided between the mounting boss 112 and the cylinder mounting platform 143 of the upper casing 11. Four first mounting holes 115 are arranged in a rectangular shape on the mounting boss 112.

[0037] See also Figure 4 The reed valve seat 2 includes a seat body 21 and a mounting flange 22 at the bottom of the seat body 21. The mounting flange 22 has a second mounting hole 23 corresponding to the first mounting hole 115. Bolts pass through the first mounting hole 115 and the second mounting hole 23 to fix the reed valve seat 2 to the upper casing 11.

[0038] See also Figure 5 and Figure 6 The reed valve 3 includes a frame 31, a reed 32, and a stopper plate 33. The frame 31 includes a connector 311 and an air intake bracket 312 secured below the connector 311. The connector 311 includes a connecting flange 3111 secured to the top of the base 21 and a connecting bracket 3112 extending downward from the connecting flange 3111. The connecting bracket 3112 includes opposing inverted triangular sidewalls 31121 and mounting walls 31122 located between the sidewalls 31121 and extending along the two oblique edges of the sidewalls.

[0039] The air intake frame 312 includes a first air intake plate 3121 and a second air intake plate 3122 of identical structure. The first and second air intake plates 3121 and 3122 are connected on one side and open on the other, forming a V-shaped arrangement. When the air intake frame 312 is secured beneath the connector 311, the first and second air intake plates 3121 and 3122 are positioned flush against the oblique edges of the sidewall 31121. Multiple air vents 3123 are defined on the first and second air intake plates 3121 and 3122.

[0040] The reed 32 includes a fixing portion 321 for fixing to the mounting wall 31122, and a baffle portion 322 that covers and seals the vent 3123. A stopper plate 33 is mounted on the outside of the reed 32 and includes a mounting portion 331 for fixing to the mounting wall 31122, and a downwardly curved stopper portion 332. The stopper portion 332 is positioned to correspond to the baffle portion 322. When the intake volume and velocity of the air in the intake pipe 4 are excessive, causing the airflow to push the reed 32 downward, the stopper portion supports the bending of the reed 32, preventing it from bending too much, which would result in excessive intake and affect engine power.

[0041] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments described above without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations of the present invention that fall within the scope of the appended claims and their equivalents.

Claims

1. An engine, characterized in that: include: The casing comprises an upper casing and a lower casing that are covered with each other, an air inlet is provided on the top of the upper casing, a mounting boss is provided on the periphery of the air inlet, and an end cover is provided at the end of the casing, and the end cover is fixed to both the upper casing and the lower casing; a reed valve seat, the reed valve seat being mounted on the mounting boss, and a reed valve being provided in the reed valve seat; an air intake pipe, the air intake pipe being mounted on the reed valve seat; The cylinder bodies are arranged on both sides of the casing.

2. The engine according to claim 1, wherein Both end surfaces of the upper receiver are provided with threaded holes and weight-reducing grooves, and both end surfaces of the lower receiver are provided with threaded holes and weight-reducing grooves.

3. The engine according to claim 2, wherein: An end cover groove is provided at the end of the receiver, and an annular boss is provided on one side of the end cover for embedding in the end cover groove. The threaded holes and weight-reducing grooves on the end cover corresponding to the end faces of the upper and lower receiver are provided with through holes and weight-reducing ports, and mounting ears are provided on both radial sides of the end cover.

4. The engine according to claim 3, wherein: Cylinder mounting platforms for fixing the cylinder body are also provided on both sides of the upper and lower casings, reinforcing ribs are provided between the mounting bosses and the cylinder mounting platform of the upper casing, and four first mounting holes are arranged in a rectangular shape on the mounting bosses.

5. The engine according to claim 4, characterized in that The reed valve seat includes a seat body and a mounting flange located at the bottom of the seat body. A second mounting hole is provided on the mounting flange corresponding to the first mounting hole.

6. The engine according to claim 4, wherein: The reed valve includes a skeleton, a reed and a limit plate. The skeleton includes a connector and an air intake frame fixed below the connector. The connector includes a connecting flange fixed on the top of the seat body and a connecting frame extending downward from the connecting flange. The connecting frame includes oppositely arranged inverted triangular side walls and a mounting wall located between the side walls and extending along the two oblique sides of the side walls.

7. The engine according to claim 6, characterized in that The air intake frame includes a first air intake plate and a second air intake plate which are arranged in a V shape and have the same structure. A plurality of air vents are provided on the first air intake plate.

8. The engine according to claim 6, wherein: The spring comprises a fixing portion for fixing on a mounting wall and a blocking portion for covering and sealing the vent.

9. The engine according to claim 8, characterized in that The limiting plate is installed on the outer side of the spring leaf, and comprises a mounting portion on the mounting wall for fixing and a limiting portion bent downward.

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