Ventilation device for engine compartment and cabin of ultra-light aircraft
By designing ventilation devices on ultra-light aircraft, hot air in the engine compartment is introduced into the cockpit, which solves the problem of low cockpit temperature, improves the comfort of the pilot and passengers, and meets the design requirements of the light aircraft.
Patent Information
- Application Number
- CN202421863279.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-08-02
AI Technical Summary
When flying, the temperature in the cockpit is low, which requires improving the comfort of the passengers. At the same time, the hot air in the engine compartment cannot be effectively utilized.
A ventilation device is designed to operate the ventilation device to pass the hot air in the engine compartment into the cockpit, and components such as partitions, ventilation openings, chokes, ventilation hoods and tension wires are used to control and introduce hot air.
It improves the temperature in the cockpit and improves the comfort of the passengers. It has a simple structure and is convenient to operate, and meets the design requirements of light aircraft.
Smart Images
Figure CN223279339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultralight aircraft, in particular to a ventilation device for an engine compartment and a cockpit of an ultralight aircraft. Background Art
[0002] With the relaxation of low-altitude air traffic control in China, ultralight aircraft have entered the public's field of vision. Ultralight aircraft are characterized by small size, compact structure, light weight, short takeoff distance and low takeoff site requirements.
[0003] Because the air temperature is lower than the ground temperature, ultralight aircraft cabins require elevated temperatures during flight to improve passenger comfort. The engine in the nacelle heats up during operation. To reduce this temperature, an air inlet is located at the head of the nacelle. This air cools the engine and also generates hot air. Directing this hot air into the cabin can alleviate this low cabin temperature issue. Therefore, a ventilation device is needed to direct this hot air into the cabin. Utility Model Content
[0004] In order to overcome the deficiencies in the background technology, the utility model discloses a ventilation device for an ultralight aircraft engine compartment and a cabin, the purpose of which is to improve the comfort of the occupants by operating the ventilation device to pass hot air into the cabin.
[0005] Specifically, the present invention adopts the following technical solutions:
[0006] A ventilation device for an ultralight aircraft engine compartment and cabin comprises a partition arranged between the engine compartment and the cabin, on which are arranged vents, a choke, a ventilation hood and a tensioning wire; wherein the ventilation hood is connected to the engine via a hose and is used to collect heat generated by the engine; the tensioning wire is connected to the choke and is used to open the vents to let hot air into the cabin.
[0007] To further improve the technical solution, the reinforcement wire includes a sheath and a steel wire, and a bracket and a wire hole are provided on the ventilation hood. The bracket is used to fix the sheath, and the wire hole is used to insert the steel wire.
[0008] To further improve the technical solution, the ventilation hood is arranged on the side of the partition facing the engine compartment, and is composed of an angled folding plate, an upper triangular plate, and a lower triangular plate; the angled folding plate has two planes, the bracket and the wire hole are arranged on one plane of the angled folding plate, and an air inlet is provided on the other plane of the angled folding plate, and the air inlet is connected to the hose.
[0009] To further improve the technical solution, the vent is opened on the partition, and the choke is hinged to the side of the partition facing the engine compartment through a hinge.
[0010] To further improve the technical solution, the operating end of the tensioning wire is set on the instrument panel, which includes an operating rod and a sleeve; the sleeve is fixed on the instrument panel, and a protrusion is provided in the sleeve; the operating rod is installed in the sleeve, and the front end of the operating rod is connected to the tensioning wire, and an axial groove and a circumferential groove that cooperate with the protrusion are provided on the operating rod; when the axial groove cooperates with the protrusion, pulling the operating rod backward can open the choke to open the ventilation port; rotating the operating rod so that the protrusion is stuck in the circumferential groove can keep the choke in the open state.
[0011] To further improve the technical solution, a spring is provided between the tension wire and the choke. When the axial groove cooperates with the protrusion, the spring is used to apply thrust to the choke to close the vent.
[0012] To further improve the technical solution, a heat collecting cover is provided on the exhaust pipe of the engine, the heat collecting cover is used to collect the heat emitted by the exhaust pipe, and the heat collecting cover is connected to the ventilation cover through a hose.
[0013] To further improve the technical solution, the heat collecting cover is an annular cover body surrounding the exhaust pipe, and air inlets are provided at both ends of the annular cover body.
[0014] After implementing the above technical solution, compared with the background technology, the beneficial effects produced by the present invention are:
[0015] The ventilation device utilizes the hot air generated by the engine to heat the cabin, thereby improving the comfort of the driver and passengers.
[0016] The ventilation device has a simple structure and is easy to operate, and meets the design requirements of light aircraft. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG1 shows a schematic structural diagram of the ventilation device at one viewing angle.
[0018] FIG2 shows a schematic structural diagram of the ventilation device from another perspective.
[0019] FIG3 shows a partial enlarged structural schematic diagram of FIG1 .
[0020] FIG4 shows a schematic structural diagram of the sleeve.
[0021] FIG5 shows a schematic structural diagram of the operating rod.
[0022] FIG6 is a schematic diagram showing the cooperation between the axial groove and the projection.
[0023] FIG7 is a schematic diagram showing the cooperation between the circumferential groove and the projection.
[0024] In the attached figure:
[0025] 1. Partition; 2. Air choke; 3. Ventilation hood; 3.1. Air inlet; 3.2. Bracket; 3.3. Wire hole; 4. Tie wire; 4.1. Sheath; 4.2. Steel wire; 4.3. Spring; 5. Hose; 6. Heat collecting hood; 7. Exhaust pipe; 8. Sleeve; 8.1. Bump; 9. Operating lever; 9.1. Axial groove; 9.2. Circumferential groove; 9.3. Handle; 10. Instrument panel. DETAILED DESCRIPTION
[0026] The following describes preferred embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely intended to illustrate the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. It should be noted that, in the description of the present invention, terms such as "front," "rear," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or component must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can mean fixed, detachable, or integral; mechanical or electrical; direct, indirect through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0027] Referring to Figures 1 and 2 , a ventilation system for the engine compartment and cabin of an ultralight aircraft includes a partition 1 disposed between the engine compartment and the cabin, with ventilation openings, a choke 2, a ventilation hood 3, and tie wires 4 provided on the partition 1. The structure and function of the ventilation system are described in detail below.
[0028] Referring to FIG3 , which is a partial enlarged schematic diagram of the structure of FIG1 , it can be seen from FIG3 that the ventilation hood 3 is arranged on the side of the partition 1 facing the engine compartment, and a heat collecting hood 6 is arranged on the exhaust pipe 7 of the engine, and the heat collecting hood 6 is connected to the ventilation hood 3 via a hose 5.
[0029] When the engine is operating, the exhaust pipe 7 generates high temperatures. The heat collection cover 6 collects the heat emitted by the exhaust pipe 7. In this embodiment, the heat collection cover 6 is an annular cover that surrounds the exhaust pipe 7, with annular air inlets at both ends. During flight, air enters the engine compartment from the nose of the aircraft. The engine compartment is under positive pressure, and the air enters the heat collection cover 6 through the annular air inlets. During contact with the exhaust pipe 7, the air is heated, forming hot air, which then enters the ventilation cover 3 through the hose 5.
[0030] It is worth noting that the source of hot air is not limited to the exhaust pipe, it can be the engine radiator.
[0031] In this embodiment, the ventilator 3 is a sheet metal component, primarily composed of an angled folded plate, an upper triangular plate, and a lower triangular plate. The angled folded plate has two flat surfaces, with the bracket 3.2 and the cable hole 3.3 located on one surface. The air inlet 3.1 is located on the other surface and is connected to the hose 5.
[0032] The choke 2 is located in the ventilation cover 3 and is hinged to the partition 1 through a hinge. The lacing wire 4 is connected to the choke 2 and is used to open the vent to let hot air into the cabin.
[0033] The tension wire 4, a commonly used control element, primarily consists of a sheath 4.1 and a steel cable 4.2. Typically, the ends of the sheath 4.1 are fixed, while the steel cable 4.2 can be pulled back and forth within the sheath 4.1. In this embodiment, the hood 3 is provided with a bracket 3.2 and a cable hole 3.3. The bracket 3.2 is used to secure the sheath 4.1, while the cable hole 3.3 is used to pass the steel cable 4.2 through, connecting it to the choke 2. Pulling the steel cable 4.2 opens the choke 2, allowing hot air to enter the cabin through the vents.
[0034] A spring 4.3 may also be provided between the tension wire 4 and the choke 2. When hot air is not required, the spring 4.3 can apply a thrust to the choke 2 to close the vent.
[0035] The operating end of the reinforcing wire 4 passes through the partition 1 and is arranged on the instrument panel 10, which includes an operating rod 9 and a sleeve 8. Among them, the sleeve 8 is fixed on the instrument panel 10, and the operating rod 9 is installed in the sleeve 8.
[0036] Referring to FIG4 , which is a schematic diagram of the structure of the sleeve, it can be seen from FIG4 that the sleeve 8 is fixed on the instrument panel 10 and a protrusion 8.1 is provided inside the sleeve 8.
[0037] Referring to FIG5 , which shows a schematic diagram of the structure of the operating rod, it can be seen that the front end of the operating rod 9 is connected to the steel wire 4.2 of the reinforcing wire 4, the operating rod 9 is provided with an axial groove 9.1 and a circumferential groove 9.2, and the rear end of the operating rod 9 is provided with a handle 9.3.
[0038] Referring to FIG6 , which shows a schematic diagram of the axial groove and the protrusion when engaged, it can be seen that when the axial groove 9.1 engages with the protrusion 8.1, pulling the operating lever 9 backward opens the choke 2, allowing hot air to enter the cabin through the vents.
[0039] Referring to Figure 7, which shows the circumferential groove and the protrusion in action, it can be seen that by turning the operating lever 9 clockwise, the protrusion 8.1 engages with the circumferential groove 9.2, keeping the choke 2 permanently open. To turn off the hot air, turn the operating lever 9 leftward, freeing the circumferential groove 9.2 from the restraint of the protrusion 8.1. The choke 2 is then closed by the spring 4.3, blocking the vent.
[0040] As can be seen from the above, the ventilation device utilizes the hot air generated by the engine to heat the cabin, thereby improving the comfort of the passengers. In addition, the ventilation device has a simple structure and is easy to operate, which meets the design requirements of light aircraft.
[0041] Parts not described in detail are prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A ventilation device for an ultralight aircraft engine compartment and cabin, comprising a partition disposed between the engine compartment and the cabin, characterized in that: Ventilation holes, a choke, a ventilation hood and a tensioning wire are provided on the partition; the ventilation hood is connected to the engine through a hose for collecting the heat generated by the engine; the tensioning wire is connected to the choke for opening the ventilation holes to let hot air into the cabin.
2. The ventilation device for an ultralight aircraft engine compartment and cabin as claimed in claim 1, characterized in that: The reinforcement wire includes a sheath and a steel wire. A bracket and a wire hole are provided on the ventilation hood. The bracket is used to fix the sheath, and the wire hole is used to insert the steel wire.
3. The ventilation device for the engine compartment and cabin of an ultralight aircraft according to claim 2, characterized in that: The ventilation hood is arranged on the side of the partition facing the engine compartment, and is composed of an angled folding plate, an upper triangular plate, and a lower triangular plate; the angled folding plate has two planes, the bracket and the wire hole are arranged on one plane of the angled folding plate, and an air inlet is provided on the other plane of the angled folding plate, and the air inlet is connected to the hose.
4. The ventilation device for the engine compartment and cockpit of an ultralight aircraft according to claim 3, characterized in that: The air vents are opened on the partition, and the air choke is hinged on the side of the partition facing the engine compartment by a hinge.
5. The ventilation device for the engine compartment and cabin of an ultralight aircraft according to claim 1, characterized in that: The operating end of the tensioning wire is set on the instrument panel, and it includes an operating rod and a sleeve; the sleeve is fixed on the instrument panel, and a protrusion is provided in the sleeve; the operating rod is installed in the sleeve, and the front end of the operating rod is connected to the tensioning wire, and an axial groove and a circumferential groove that cooperate with the protrusion are provided on the operating rod; when the axial groove cooperates with the protrusion, pulling the operating rod backward can open the choke to open the ventilation port; rotating the operating rod so that the protrusion is stuck in the circumferential groove can keep the choke in the open state.
6. The ventilation device for the engine compartment and the cabin of an ultralight aircraft according to claim 5, characterized in that: A spring is provided between the tension wire and the choke. When the axial groove cooperates with the protrusion, the spring is used to apply thrust to the choke to close the vent.
7. The ventilation device for the engine compartment and cockpit of an ultralight aircraft according to claim 1, characterized in that: A heat collecting cover is provided on the exhaust pipe of the engine, and is used to collect the heat emitted by the exhaust pipe. The heat collecting cover is connected to the ventilation cover through a hose.
8. The ventilation device for the engine compartment and cockpit of an ultralight aircraft according to claim 7, characterized in that: The heat collecting cover is an annular cover body surrounding the exhaust pipe, and air inlets are provided at both ends of the annular cover body.