Gasoline engine capable of being efficiently started in ultralow-temperature environment

Abstract

The utility model discloses a gasoline engine capable of being efficiently started in an ultralow-temperature environment. The gasoline engine comprises a gasoline engine body, an air inlet chamber arranged at the top end of the gasoline engine body, an air inlet pipeline connected to one side of the gasoline engine body and an air inlet pipe base arranged at the top end of the air inlet pipeline and communicated with the air inlet chamber. A preheating ring sleeve is mounted on the surface of the air inlet pipe seat in a sleeving manner, an annular inner groove is formed in the inner wall of the preheating ring sleeve, and an electric heating ring is mounted on the inner side of the annular inner groove; a heat conduction structure corresponding to the electric heating ring is arranged on the air inlet pipe seat; a gasoline engine in the prior art is improved and optimized, the preheating electric heating ring is designed and integrated on the air inlet pipe seat of the gasoline engine, and the preheating electric heating ring is ingeniously matched with a heat conduction structure in the pipe seat, so that the purpose of preheating air passing through the air inlet pipe seat is achieved, the temperature of the air entering an air cylinder is effectively increased, and the service life of the air cylinder is prolonged. The starting performance and efficiency of the gasoline engine in the ultralow-temperature environment can be remarkably improved, fuel oil atomization is effectively promoted, and the ignition success rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of gasoline engine technology, specifically relating to a gasoline engine that starts efficiently in ultra-low temperature environments. Background Technology

[0002] As the main power source for modern transportation and various mechanical equipment, gasoline engines are described in existing patents such as CN220415538U, which discloses "a housing for a general-purpose gasoline engine, comprising a housing with an open crankshaft cavity inside the housing, characterized in that: a labyrinth separation component is provided on an outer surface of the housing perpendicular to the direction of the crankshaft cavity, and a guide pipe is provided along the first direction in the housing at the upper part of the crankshaft cavity, one end of the guide pipe being connected to the labyrinth separation component, and an inlet connected to the crankshaft cavity on the guide pipe." It can be seen that the gasoline engine described in this application is a common type of gasoline engine, and its performance stability and starting efficiency directly affect the operational reliability and usage efficiency of the equipment.

[0003] Under normal ambient temperatures, gasoline engines can be successfully ignited and started, relying on the high-temperature spark generated by the spark plug to ignite the air-fuel mixture. However, in ultra-low temperature environments, such as polar expeditions, operations in high-altitude and cold regions, or extreme winter climates, starting a gasoline engine faces significant challenges. One important reason is the excessively low temperature in the intake manifold and cylinder, which further exacerbates fuel atomization and ignition difficulties. The gasoline engine may fail to form a proper air-fuel mixture due to excessively low intake temperature, resulting in ineffective ignition and starting failure. Therefore, this invention proposes a method for starting a gasoline engine efficiently in ultra-low temperature environments. Utility Model Content

[0004] The purpose of this invention is to provide a gasoline engine that can start efficiently in ultra-low temperature environments, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gasoline engine that starts efficiently in ultra-low temperature environments, including...

[0006] The gasoline engine body, the intake chamber located at the top of the gasoline engine body, the intake pipe connected to one side of the gasoline engine body, and the intake pipe seat located at the top of the intake pipe and connected to the intake chamber.

[0007] A preheating ring is fitted onto the surface of the intake manifold seat. An annular groove is formed on the inner wall of the preheating ring, and an electric heating ring is installed on the inner side of the annular groove. A connecting line leading out to the outside of the preheating ring is provided on one side of the electric heating ring.

[0008] The intake manifold seat is provided with a heat-conducting structure corresponding to the heating ring.

[0009] Preferably, the heat-conducting structure includes an annular outer groove formed on the surface of the intake pipe seat, and an annular heat-conducting copper ring is provided in the annular outer groove. The heating ring is attached to the annular heat-conducting copper ring. A heat-conducting inner base ring is installed on the inner wall of the intake pipe seat. The inner wall of the intake pipe seat has multiple strip-shaped heat-conducting ports communicating with the annular outer groove, and a heat-conducting copper strip is provided in the strip-shaped heat-conducting ports. The two ends of the heat-conducting copper strip are respectively fixed to the annular heat-conducting copper ring and the heat-conducting inner base ring. Multiple integrated heat dissipation fins are uniformly provided on the inner wall of the heat-conducting inner base ring.

[0010] Preferably, the surface of the intake manifold seat is also fitted with two fastening rings, and the two fastening rings are respectively located on both sides of the preheating ring.

[0011] Preferably, the fastening ring is threadedly connected to the intake manifold seat.

[0012] Preferably, the inner surface of the fastening ring is provided with an annular side groove, and an annular rubber seat is embedded in the annular side groove. One side surface of the annular rubber seat is provided with an integral annular sealing protrusion. Both ends of the preheating ring are provided with annular sealing grooves corresponding to the annular sealing protrusions. The annular sealing protrusions are squeezed into the annular sealing grooves.

[0013] Preferably, the other side surface of the annular rubber seat is provided with a plurality of integral inserts, the side of the inserts is provided with an integral side block, the inner wall of the annular side groove is provided with a plurality of slots for inserts to be inserted, and the side wall of the slot is provided with a side slot for the side block to be engaged.

[0014] Preferably, the cross-section of the side block is a right-angled triangle.

[0015] Preferably, the annular rubber seat has an annular cavity inside.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves and optimizes the gasoline engine in the prior art by designing and integrating a preheating electric heating ring on the intake manifold seat of the gasoline engine, and cleverly cooperating with the heat conduction structure inside the manifold seat to achieve the purpose of preheating the air passing through the intake manifold seat, effectively increasing the air temperature entering the cylinder, which can significantly improve the starting performance and efficiency of the gasoline engine in ultra-low temperature environment, effectively promote fuel atomization, and improve the ignition success rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the connection between the preheating ring and the intake pipe seat of this utility model;

[0019] Figure 3 This utility model Figure 2 A magnified view of a portion of region A in the middle;

[0020] Figure 4 This utility model Figure 2 A magnified view of a portion of region B in the middle;

[0021] In the diagram: 1. Gasoline engine body; 2. Intake chamber; 3. Intake pipe; 4. Intake pipe seat; 41. Fastening ring; 411. Annular side groove; 412. Annular rubber seat; 413. Annular sealing protrusion; 414. Insert strip; 415. Side retaining block; 416. Slot; 417. Side retaining groove; 42. Thermally conductive inner base ring; 43. Heat dissipation fins; 44. Annular outer groove; 45. Annular thermally conductive copper ring; 46. Thermally conductive copper strip; 47. Strip-shaped heat conduction port; 5. Preheating ring; 51. Annular inner groove; 52. Heating ring; 53. Connecting wire; 54. Annular sealing groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1 to 4 This is an embodiment of the present invention, which provides a technical solution: a gasoline engine that starts efficiently in ultra-low temperature environments, including...

[0025] 1. Gasoline engine body; 2. Intake chamber located at the top of the gasoline engine body; 3. Intake pipe connected to one side of the gasoline engine body; 4. Intake pipe seat located at the top of the intake pipe 3 and connected to the intake chamber 2.

[0026] A preheating ring 5 is fitted onto the surface of the intake manifold seat 4. An annular groove 51 is formed on the inner wall of the preheating ring 5, and an electric heating ring 52 is installed on the inner side of the annular groove 51. A connecting wire 53 is provided on one side of the electric heating ring 52, leading out to the outside of the preheating ring 5. The connecting wire 53 can be connected to an external power source to turn on the electric heating ring 52 and make it start heating.

[0027] The intake manifold seat 4 is provided with a heat-conducting structure corresponding to the heating ring 52, which can fully transfer the heat generated by the heating ring 52 during operation to the inside of the intake manifold seat 4, thereby preheating the air passing through the inside of the intake manifold seat 4 and ensuring the efficient and stable start-up of the gasoline engine body 1 in ultra-low temperature environment.

[0028] In this embodiment, preferably, the heat-conducting structure includes an annular outer groove 44 formed on the surface of the intake pipe seat 4, and an annular heat-conducting copper ring 45 is disposed inside the annular outer groove 44. The heating ring 52 is attached to the annular heat-conducting copper ring 45. A heat-conducting inner base ring 42 is installed on the inner wall of the intake pipe seat 4. A plurality of strip-shaped heat-conducting ports 47 communicating with the annular outer groove 44 are formed on the inner wall of the intake pipe seat 4, and heat-conducting copper strips 46 are disposed inside the strip-shaped heat-conducting ports 47. The two ends of the heat-conducting copper strips 46 are fixed to the annular heat-conducting copper ring 45 and the heat-conducting inner base ring 42, respectively, so that the heat of the annular heat-conducting copper ring 45 can be conducted to the heat-conducting inner base ring through the heat-conducting copper strips 46. On the ring 42, multiple integrated heat dissipation fins 43 are evenly provided on the inner wall of the heat-conducting inner base ring 42. Both the heat-conducting inner base ring 42 and the heat dissipation fins 43 are made of copper. When the heating ring 52 is energized and heats up, the heat can first be conducted to the annular heat-conducting copper ring 45, and then sequentially to the heat-conducting copper strip 46, the heat-conducting inner base ring 42 and the heat dissipation fins 43. This allows the air passing through the intake manifold seat 4 to come into contact with the heat dissipation fins 43 for heat exchange, achieving the effect of preheating the air. This ensures that the temperature of the air entering the gasoline engine body 1 will not be too low, thus achieving efficient and stable starting of the gasoline engine body 1 in ultra-low temperature environments.

[0029] In this embodiment, preferably, the surface of the intake pipe seat 4 is also fitted with two fastening rings 41, and the two fastening rings 41 are respectively located on both sides of the preheating ring 5, which can stably limit the position of the preheating ring 5 and ensure the installation stability of the preheating ring 5. The fastening rings 41 are threadedly connected to the intake pipe seat 4, so that the fastening rings 41 can be rotated and tightened. After the fastening rings 41 are rotated and tightened, the stable installation of the preheating ring 5 can be completed.

[0030] In this embodiment, preferably, the inner surface of the fastening ring 41 is provided with an annular side groove 411, and an annular rubber seat 412 is embedded in the annular side groove 411. One side surface of the annular rubber seat 412 is provided with an integral annular sealing protrusion 413. Both are made of fluororubber, which will undergo elastic deformation when squeezed. Fluororubber has good temperature resistance compared with conventional rubber. Both ends of the preheating ring 5 are provided with annular sealing grooves 54 corresponding to the annular sealing protrusion 413. The annular sealing protrusion 413 is squeezed into the annular sealing groove 54, which can play an effective sealing role after the fastening ring 41 is tightened, ensuring effective sealing at both ends of the preheating ring 5 and preventing air leakage.

[0031] In this embodiment, preferably, a plurality of integral inserts 414 are provided on the other side surface of the annular rubber seat 412. The side of the insert 414 is provided with an integral side locking block 415. The inner wall of the annular side groove 411 is provided with a plurality of slots 416 for inserting the insert 414, and the side wall of the slot 416 is provided with a side locking groove 417 for the side locking block 415 to be engaged. This allows the side locking block 415 to be stably engaged in the side locking groove 417 after the insert 414 is inserted into the slot 416, ensuring the stable positioning of the annular rubber seat 412 and thus ensuring the stable installation of the annular rubber seat 412.

[0032] In this embodiment, preferably, the cross-section of the side block 415 is a right-angled triangle.

[0033] In this embodiment, preferably, an annular cavity is provided inside the annular rubber seat 412, so that the annular sealing protrusion 413 has sufficient deformation space when it is squeezed.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gasoline engine that starts efficiently in ultra-low temperature environments, characterized by: include The gasoline engine body (1), the intake chamber (2) located at the top of the gasoline engine body (1), the intake pipe (3) connected to one side of the gasoline engine body (1), and the intake pipe seat (4) located at the top of the intake pipe (3) and connected to the intake chamber (2); A preheating ring (5) is fitted on the surface of the air intake pipe seat (4). An annular groove (51) is opened on the inner wall of the preheating ring (5), and an electric heating ring (52) is installed on the inner side of the annular groove (51). A connecting line (53) leading out to the outside of the preheating ring (5) is provided on one side of the electric heating ring (52). The intake manifold seat (4) is provided with a heat-conducting structure corresponding to the heating ring (52).

2. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 1, characterized in that: The heat-conducting structure includes an annular outer groove (44) formed on the surface of the air intake pipe seat (4), and an annular heat-conducting copper ring (45) is provided in the annular outer groove (44). The heating ring (52) is attached to the annular heat-conducting copper ring (45). A heat-conducting inner base ring (42) is installed on the inner wall of the air intake pipe seat (4). A plurality of strip-shaped heat-conducting ports (47) communicating with the annular outer groove (44) are formed on the inner wall of the air intake pipe seat (4). A heat-conducting copper strip (46) is provided in the strip-shaped heat-conducting port (47). The two ends of the heat-conducting copper strip (46) are fixed to the annular heat-conducting copper ring (45) and the heat-conducting inner base ring (42) respectively. A plurality of integrated heat dissipation fins (43) are uniformly provided on the inner wall of the heat-conducting inner base ring (42).

3. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 1, characterized in that: The surface of the air intake pipe seat (4) is also fitted with two fastening rings (41), and the two fastening rings (41) are respectively located on both sides of the preheating ring (5).

4. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 3, characterized in that: The fastening ring (41) is threadedly connected to the intake manifold seat (4).

5. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 3, characterized in that: The inner surface of the fastening ring (41) is provided with an annular side groove (411), and an annular rubber seat (412) is embedded in the annular side groove (411). One side surface of the annular rubber seat (412) is provided with an integral annular sealing protrusion (413). Both ends of the preheating ring (5) are provided with annular sealing grooves (54) corresponding to the annular sealing protrusion (413). The annular sealing protrusion (413) is squeezed into the annular sealing groove (54).

6. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 5, characterized in that: The other side surface of the annular rubber seat (412) is provided with a plurality of integral inserts (414), the side of the insert (414) is provided with an integral side block (415), the inner wall of the annular side groove (411) is provided with a plurality of slots (416) for inserts (414) to be inserted, and the side wall of the slot (416) is provided with a side slot (417) for the side block (415) to be engaged.

7. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 6, characterized in that: The side block (415) has a right-angled triangle cross section.

8. The high-efficiency starting gasoline engine under ultra-low temperature conditions according to claim 6, characterized in that: The annular rubber seat (412) has an annular cavity inside.

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