Starting motor turbine and engine

Abstract

The application discloses a starting motor turbine and engine and belongs to the technical field of internal combustion engines. The starting motor turbine comprises a shell assembly, a turbine rotor and a first elastic member. The shell assembly has a containing cavity, an air inlet and an air outlet which are communicated with the containing cavity. The shell assembly comprises a first part and a second part which are arranged in the containing cavity and are spaced apart. The turbine rotor comprises a rotating part and a connecting part. The two ends of the rotating part are rotatably connected with the first part and the second part respectively. The connecting part is arranged between the first part and the second part. The gas flowing from the air inlet to the air outlet can drive the connecting part to move away from the first part. The two ends of the first elastic member are connected with the rotating part and the second part respectively. The first elastic member can drive the rotating part to move towards the first part. The first elastic member is arranged to push the turbine rotor towards the first part after the compressed gas stops entering the air inlet, so that the friction torque is formed between the connecting part and the first part to reduce the time of the turbine rotor stopping rotating.

Description

Technical Field

[0001] The present application belongs to the technical field of internal combustion engines, and specifically relates to turbine guide vanes and engines. Background Art

[0002] The starter motor turbine is used to drive the engine's flywheel to rotate to start the engine. When the engine needs to be started, both the turbine and the flywheel need to be stationary to avoid gear knocking.

[0003] However, the time taken for the starter motor turbine and the flywheel to stop is different. Usually, the starter motor turbine stops for a longer time, resulting in a longer interval between consecutive engine ignitions. Summary of the Invention

[0004] Purpose of the invention: The present application provides a starter motor turbine to solve the technical problem of long stall time of the starter motor turbine; another purpose of the present application is to provide an engine.

[0005] Technical solution: This application provides a starter motor turbine, comprising:

[0006] A housing assembly having a receiving cavity and an air inlet and an air outlet communicated with the receiving cavity, the housing assembly comprising a first portion and a second portion disposed in the receiving cavity and spaced apart along a first direction;

[0007] a turbine rotor, the turbine rotor comprising a rotating portion and a connecting portion, wherein the rotating portion is rotatably connected to the first portion and the second portion at both ends along the first direction, and the connecting portion is disposed between the first portion and the second portion along the first direction; gas flowing from the air inlet to the air outlet can drive the connecting portion to move in a direction away from the first portion;

[0008] A first elastic member, wherein the two ends of the first elastic member along the first direction are respectively connected to the rotating part and the second part, and the first elastic member can drive the rotating part to move toward the first part along the first direction, so that the connecting part is connected to the first part along the first direction.

[0009] In some embodiments, the starter motor further comprises:

[0010] a clamping member connected to the second portion, the clamping member being disposed on a side of the connecting portion away from the first portion along the first direction; gas flowing from the air inlet to the air outlet can drive the clamping member to move in a direction away from the connecting portion;

[0011] A second elastic member, one end of the second elastic member along the first direction is connected to the second part, and the other end is connected to the clamping member, and the second elastic member can drive the clamping member to move along the first direction toward the connecting part so that the clamping member is connected to the connecting part along the first direction.

[0012] In some embodiments, the housing assembly includes a turbine guide vane, which is arranged on a side of the connecting portion close to the first portion along the first direction, the turbine guide vane is connected to the first portion, and the first elastic member is capable of driving the rotating portion to move so that the connecting portion is connected to the turbine guide vane along the first direction.

[0013] In some embodiments, the turbine guide vane comprises:

[0014] a first body, the first body being sleeved on the first portion, the first body and the connecting portion being spaced apart along the first direction;

[0015] A first friction member is connected to a side of the first body facing the connecting portion along the first direction, and the first friction member is used to be connected to the connecting portion.

[0016] In some embodiments, the first friction member has a first surface, a second surface and a first friction surface, the first surface and the second surface are opposite to each other in a direction perpendicular to the first direction, and are respectively connected to the first body, and the first surface faces the connecting portion; the first friction surface is arranged between the first surface and the second surface in a direction perpendicular to the first direction, and is respectively connected to the first surface and the second surface, the first friction surface has a first groove, and the first groove runs through the first surface and the second surface.

[0017] In some embodiments, the clamping member comprises:

[0018] a second body, the second body being sleeved on the second portion, the second body and the connecting portion being spaced apart along the first direction;

[0019] A second friction member is connected to a side of the second body along the first direction facing the connecting portion, and the second friction member is used to be connected to the connecting portion.

[0020] In some embodiments, the second friction member has a third surface, a fourth surface and a second friction surface, the third surface and the fourth surface are opposite to each other in a direction perpendicular to the first direction and are respectively connected to the second body, and the third surface faces the connecting portion; the second friction surface is arranged between the third surface and the fourth surface in a direction perpendicular to the first direction and is respectively connected to the third surface and the fourth surface, the second friction surface has a second groove, and the second groove runs through the third surface and the fourth surface.

[0021] In some embodiments, the housing assembly includes:

[0022] a first shell, the first shell having a first cavity and the air inlet communicating with the first cavity, the first portion, part of the rotating portion and the connecting portion being disposed in the first cavity;

[0023] a second housing, the second housing having a second cavity and the air outlet communicating with the second cavity, the second portion and the clamping member being disposed in the second cavity, the second housing being connected to the first housing, the first cavity and the second cavity being communicated with each other to form the accommodating cavity;

[0024] The clamping member also includes a sliding portion, which surrounds the second body and is connected to a side of the second body close to the second shell in a direction perpendicular to the first direction. The sliding portion is connected to the second body; the second body has a silencer hole that passes through the second body along the first direction.

[0025] In some embodiments, the first shell further has a first end face and a positioning groove, the first cavity forms an opening on the first end face, and the positioning groove is arranged on the first end face and surrounds the opening; the second shell is connected to the first end face and covers the opening, and part of the second shell and part of the sliding part are arranged in the positioning groove.

[0026] In some embodiments, the connecting portion has a third friction surface and a fourth friction surface that are opposite to each other along a first direction, the third friction surface is used to connect with the first portion, the fourth friction surface is used to connect with the clamping member, the third friction surface has a third groove, and the fourth friction surface has a fourth groove.

[0027] In some embodiments, the turbine rotor further comprises:

[0028] a first friction portion, the first friction portion being connected to a side of the connecting portion close to the first portion along the first direction, the first friction portion having the third friction surface, and a first connecting surface and a second connecting surface, which are opposite to each other and respectively connected to the connecting portion in a direction perpendicular to the first direction, the first connecting surface being close to the connecting portion, the third friction surface being arranged between the first connecting surface and the second connecting surface in a direction perpendicular to the first direction, and respectively connecting the first connecting surface and the second connecting surface, and the third groove running through the first connecting surface and the second connecting surface;

[0029] A second friction portion, the second friction portion is connected to a side of the connecting portion close to the clamping member along the first direction, the second friction portion has the fourth friction surface, and a third connecting surface and a fourth connecting surface that are opposite to each other in a direction perpendicular to the first direction and are respectively connected to the connecting portion, the third connecting surface is close to the connecting portion, the fourth friction surface is arranged between the third connecting surface and the fourth connecting surface in a direction perpendicular to the first direction, and respectively connects the third connecting surface and the fourth connecting surface, and the fourth groove runs through the third connecting surface and the fourth connecting surface.

[0030] In some embodiments, the first part has a first mounting hole on one side facing the second part along the first direction, the second part has a second mounting hole on one side facing the first part along the first direction, the two ends of the rotating part along the first direction are respectively passed through the first mounting hole and the second mounting hole, and the first elastic member is arranged in the second mounting hole.

[0031] In some embodiments, the starter motor turbine further comprises:

[0032] a first bearing member, the first bearing member being disposed in the first mounting hole and connecting the rotating portion and the first portion;

[0033] A third elastic member is disposed in the first mounting hole, one end of the third elastic member is connected to the first bearing member, and the other end is connected to the first portion.

[0034] Accordingly, the present application also provides an engine, comprising a starter motor turbine as described in any one of the above embodiments.

[0035] Beneficial Effects: Compared to the prior art, the starting turbine motor provided in the embodiments of the present application includes a housing assembly, a turbine rotor, and a first elastic member. The housing assembly has a housing cavity and an air inlet and an air outlet communicating with the housing cavity. The housing assembly includes a first portion and a second portion disposed in the housing cavity and spaced apart along a first direction. The turbine rotor includes a rotating portion and a connecting portion. The rotating portion has two ends along the first direction that are rotatably connected to the first portion and the second portion, and the connecting portion is disposed between the first portion and the second portion along the first direction. Gas flowing from the air inlet to the air outlet can drive the connecting portion to move in a direction away from the first portion. The first elastic member has two ends along the first direction that are connected to the rotating portion and the second portion, respectively. The first elastic member can drive the rotating portion to move toward the first portion in the first direction so that the connecting portion is connected to the first portion in the first direction. The present application provides a first elastic member to push the turbine rotor toward the first portion after compressed gas stops entering the air inlet, so that the connecting portion of the turbine rotor contacts the first portion and forms a friction pair. The friction torque generated between the connecting portion and the first portion serves as a braking force for the turbine rotor, thereby reducing the time the turbine rotor stops rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0037] Figure 1 A cross-sectional view of a starter motor turbine provided in an embodiment of the present application;

[0038] Figure 2 for Figure 1 Detailed view of the center circle A;

[0039] Figure 3 for Figure 1 Detail of the center circle C;

[0040] Figure 4 for Figure 1 Cross-sectional view at the middle BB;

[0041] Figure 5 A schematic structural diagram of a turbine guide vane of a starter motor turbine provided in an embodiment of the present application;

[0042] Figure 6 A schematic structural diagram of a clamping member for a starter motor turbine provided in an embodiment of the present application;

[0043] Figure 7 A schematic structural diagram of a turbine rotor of a starter motor turbine provided in an embodiment of the present application;

[0044] Figure 8 A schematic diagram of the connection between the turbine rotor and turbine guide vanes of the starter motor turbine provided in an embodiment of the present application;

[0045] Reference numerals: 100-housing assembly, 110-first part, 111-first mounting hole, 120-second part, 121-second mounting hole, 130-first housing, 131-first cavity, 132-air inlet, 133-first end face, 134-positioning groove, 140-second housing, 141-second cavity, 142-air outlet, 150-accommodation cavity, 160-turbine guide vane, 161-first body, 162-first friction member, 1621-first surface, 1622-second surface, 1623-first friction surface, 1624-first groove, 200-turbine rotor, 210-rotating part, 220-connecting part, 221-first friction part, 22 11-third friction surface, 2212-third groove, 2213-first connecting surface, 2214-second connecting surface, 222-second friction part, 2221-fourth groove, 2222-fourth friction surface, 2223-third connecting surface, 2224-fourth connecting surface, 300-first elastic member, 400-clamping member, 410-second body, 411-silencer hole, 420-second friction member, 421-third surface, 422-fourth surface, 423-second friction surface, 424-second groove, 430-sliding part, 500-second elastic member, 600-first bearing member, 700-second bearing member, 800-third elastic member, X-first direction. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically limited. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0048] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application.

[0049] The starter motor turbine is used to drive the engine's flywheel to rotate to start the engine. When the engine needs to be started, both the turbine and the flywheel need to be stationary to avoid gear knocking.

[0050] However, the time it takes for the starter motor turbine and flywheel to run and stop is different. The starter motor turbine takes a longer time to stop, resulting in the flywheel having stopped while the starter motor turbine has not stopped when the engine is ignited continuously. It is necessary to wait for the starter motor turbine to stop before ignition can be started again, and the interval between continuous ignitions is longer.

[0051] In order to solve the technical problem of the long interval between the continuous ignition of the above-mentioned engine, the first embodiment of the present application provides a starter motor turbine, see Figure 1 The starter motor turbine includes a housing assembly 100, a turbine rotor 200 and a first elastic member 300. The housing assembly 100 has an accommodating cavity 150 and an air inlet 132 and an air outlet 142 connected to the accommodating cavity 150. The housing assembly 100 includes a first portion 110 and a second portion 120 disposed in the accommodating cavity 150 and spaced apart along a first direction X. The turbine rotor 200 includes a rotating portion 210 and a connecting portion 220. The rotating portion 210 is rotatably connected to the first portion 110 and the second portion 120 at both ends along the first direction X. The connecting portion 220 is arranged between the first portion 110 and the second portion 120 along the first direction X; the gas flowing from the air inlet 132 to the air outlet 142 can drive the connecting portion 220 to move in a direction away from the first portion 110; the first elastic member 300 is respectively connected to the rotating portion 210 and the second portion 120 at both ends along the first direction X, and the first elastic member 300 can drive the rotating portion 210 to move toward the first portion 110 along the first direction X, so that the connecting portion 220 is connected to the first portion 110 along the first direction X.

[0052] Specifically, the first direction X is the direction of the arrow X in the accompanying drawings.

[0053] It is understandable that the air inlet 132 is used to introduce compressed gas that drives the turbine rotor 200 to rotate, and the compressed gas flowing through the turbine rotor 200 can be discharged outside the housing assembly 100.

[0054] The rotating portion 210 is not only rotatably connected to the first portion 110 and the second portion 120 , but is also capable of relative movement along the first direction X relative to the first portion 110 and the second portion 120 .

[0055] Specifically, the turbine rotor 200 has a first stationary position. When the turbine rotor 200 is in the first stationary position, the connecting portion 220 of the turbine rotor 200 is in contact with the first portion 110. When the turbine rotor 200 rotates, friction torque is generated between the connecting portion 220 and the first portion 110, reducing the rotational speed of the turbine rotor 200.

[0056] Specifically, the first elastic member 300 can exert a force on the turbine rotor 200 in the first direction X toward the first portion 110, while the compressed gas entering the accommodating chamber 150 can exert a force on the turbine rotor 200 in the first direction X away from the first portion 110. When the compressed gas stops entering the accommodating chamber 150, the force exerted by the first elastic member 300 on the turbine rotor 200 in the first direction X is greater than the force exerted by the compressed gas on the turbine rotor 200 in the first direction X. Propelled by the first elastic member 300, the turbine rotor 200 can enter the first resting position and connect with the first portion 110. After the compressed gas enters the accommodating chamber 150, the force exerted by the first elastic member 300 on the turbine rotor 200 in the first direction X is less than the force exerted by the compressed gas on the turbine rotor 200 in the first direction X. Propelled by the compressed gas, the turbine rotor 200 can separate from the first portion 110, i.e., leave the first resting position.

[0057] In the above embodiment, after the compressed gas stops entering the accommodating chamber 150, the turbine rotor 200 capable of moving along the first direction X will be pushed by the first elastic member 300 to contact the first part 110. The friction torque generated between the first part 110 and the turbine rotor 200 can reduce the rotational speed of the turbine rotor 200, thereby reducing the time it takes for the turbine rotor 200 to go from rotation to stop.

[0058] In some embodiments, see Figure 1 The starter motor further includes a clamping member 400 and a second elastic member 500. The clamping member 400 is connected to the second portion 120 and is disposed on a side of the connecting portion 220 away from the first portion 110 along the first direction X. The gas flowing from the air inlet 132 to the air outlet 142 can drive the clamping member 400 to move in a direction away from the connecting portion 220. One end of the second elastic member 500 along the first direction X is connected to the second portion 120, and the other end is connected to the clamping member 400. The second elastic member 500 can drive the clamping member 400 to move along the first direction X toward the connecting portion 220, so that the clamping member 400 is connected to the connecting portion 220 along the first direction X.

[0059] In some embodiments, the clamping member 400 is slidably coupled to the second portion 120. In some embodiments, the clamping member 400 has a spline hole extending through the clamping member 400 along the first direction X. The second portion 120 has a spline portion. The clamping member 400 is coupled to the spline portion and is movable along the first direction X. The spline portion is used to limit relative rotation between the second portion 120 and the clamping member 400.

[0060] In some embodiments, the second elastic member 500 is a butterfly spring.

[0061] Specifically, the clamping member 400 has a second static position. When the clamping member 400 is in the second static position, the turbine rotor 200 is in the first static position, and the clamping member 400 can be in contact with the connecting portion 220 of the turbine rotor 200 in the first static position. If the turbine rotor 200 rotates, friction torque is generated between the connecting portion 220 and the clamping member 400, reducing the rotational speed of the turbine rotor 200.

[0062] Specifically, the second elastic member 500 can exert a force on the clamping member 400 along the first direction X toward the first portion 110, while the compressed gas entering the accommodating chamber 150 can exert a force on the clamping member 400 along the first direction X away from the first portion 110. When the compressed gas stops entering the accommodating chamber 150, the turbine rotor 200 enters the first resting position and connects with the first portion 110. The force exerted by the second elastic member 500 on the clamping member 400 along the first direction X is greater than the force exerted by the compressed gas on the clamping member 400 along the first direction X. As a result, the clamping member 400, propelled by the second elastic member 500, enters the second resting position and connects with the turbine rotor 200 in the first resting position. When the compressed gas enters the accommodating chamber 150, the turbine rotor 200 leaves the first static position; the force applied by the second elastic member 500 to the clamping member 400 along the first direction X is less than the force applied by the compressed gas to the clamping member 400 along the first direction X. The clamping member 400 can be separated from the turbine rotor 200 under the push of the compressed gas, that is, it leaves the second static position.

[0063] In some embodiments, the turbine rotor 200 and the clamp 400 can only come into contact when the compressed gas stops entering the receiving chamber 150 .

[0064] In the above embodiment, after the compressed gas stops entering the accommodating chamber 150, the clamping member 400 capable of moving along the first direction X will be pushed by the second elastic member 500 to contact the connecting portion 220 of the turbine rotor 200. The friction torque generated between the clamping member 400 and the turbine rotor 200 can cooperate with the friction torque generated between the first portion 110 and the turbine rotor 200 to further reduce the rotational speed of the turbine rotor 200, thereby further reducing the time it takes for the turbine rotor 200 to go from rotation to stop.

[0065] In some embodiments, see Figure 1 The housing assembly 100 includes a turbine guide vane 160, which is arranged on a side of the connecting portion 220 close to the first portion 110 along the first direction X. The turbine guide vane 160 is connected to the first portion 110, and the first elastic member 300 can drive the rotating portion 210 to move so that the connecting portion 220 is connected to the turbine guide vane 160 along the first direction X.

[0066] Specifically, the turbine guide vane 160 is fixedly connected to the first portion 110 .

[0067] Specifically, the connecting portion 220 is indirectly connected to the first portion 110 through the turbine guide vane 160 .

[0068] In some embodiments, the turbine guide vanes 160 are sleeved on the first portion 110 .

[0069] In some embodiments, see Figure 1 The first portion 110 includes a first sleeve portion and a first fixed portion that are connected to each other. The first sleeve portion is connected to a side of the first fixed portion that faces the second portion 120 along the first direction X. The first fixed portion is connected to the housing assembly 100. The rotating portion 210 is inserted into the first fixed portion, and the turbine guide vane 160 is sleeved on the first sleeve portion.

[0070] In some embodiments, the housing assembly 100 further includes a fixing member, which is sequentially arranged through the turbine guide vane 160 and the first fixing portion along the first direction X. The fixing member is used to limit the displacement of the turbine guide vane 160 along the first direction X and the rotation of the turbine guide vane 160 around an axis parallel to the first direction X, so that the turbine guide vane 160 is fixedly connected to the first portion 110.

[0071] In the above embodiment, by making the turbine rotor 200 indirectly contact the first part 110 through the turbine guide vane 160 to generate a friction torque, the part of the turbine rotor 200 where the friction force is generated can be moved radially further outward. The friction force generated further outward has a larger lever arm, thereby making the friction torque larger, thereby further reducing the time the turbine rotor 200 stops rotating.

[0072] In some embodiments, see Figure 1 and Figure 5 The turbine guide vane 160 includes a first body 161 and a first friction member 162. The first body 161 is sleeved on the first part 110. The first body 161 and the connecting part 220 are spaced apart along the first direction X. The first friction member 162 is connected to one side of the first body 161 facing the connecting part 220 along the first direction X. The first friction member 162 is used to connect to the connecting part 220.

[0073] Specifically, the first body 161 is sleeved with the first sleeve portion, and the first friction member 162 is disposed around the rotating portion 210 .

[0074] Specifically, the turbine rotor 200 also includes a first blade, which is connected to the connecting portion 220 along a side perpendicular to the first direction X away from the rotating portion 210; the turbine guide vane 160 also includes a second guide vane, which is connected to the first body 161 along a side perpendicular to the first direction X away from the first portion 110.

[0075] In the above embodiment, by providing the first friction member 162 to avoid contact between the first blade and the second blade having a larger dimension along the first direction X, after the compressed gas stops entering the accommodating chamber 150, the possibility of damage to the first blade and the second blade is reduced, thereby improving the service life of the turbine rotor 200 and the turbine guide vane 160, thereby improving the service life of the starter motor turbine.

[0076] In some embodiments, see Figure 3 and Figure 5 The first friction member 162 has a first surface 1621, a second surface 1622 and a first friction surface 1623. The first surface 1621 and the second surface 1622 are opposite to each other in a direction perpendicular to the first direction X and are respectively connected to the first body 161. The first surface 1621 faces the connecting portion 220; the first friction surface 1623 is arranged between the first surface 1621 and the second surface 1622 in a direction perpendicular to the first direction X and connects the first surface 1621 and the second surface 1622 respectively. The first friction surface 1623 has a first groove 1624, and the first groove 1624 runs through the first surface 1621 and the second surface 1622.

[0077] In the above embodiment, by providing first grooves 1624 on the friction surface, first grooves 1624 can form edges on first friction surface 1623. When first friction surface 1623 contacts connecting portion 220, the contact portion of connecting portion 220 and first friction surface 1623 is scraped to keep the contact portion clean. This can reduce the maintenance frequency of the starter motor turbine and improve the reliability of the starter motor turbine. Furthermore, first grooves 1624, which extend through first surface 1621 and second surface 1622, can remove impurities that have been scraped and fallen into first grooves 1624, thereby preventing impurities from filling first grooves 1624.

[0078] In some embodiments, see Figure 6The clamping member 400 includes a second body 410 and a second friction member 420. The second body 410 is sleeved on the second part 120. The second body 410 and the connecting part 220 are spaced apart along the first direction X; the second friction member 420 is connected to one side of the second body 410 toward the connecting part 220 along the first direction X, and the second friction member 420 is used to connect with the connecting part 220.

[0079] In the above embodiment, by providing a second friction member 420, the portion where the clamping member 400 is connected to the turbine rotor 200 is closer to the rotating portion 210 in a direction perpendicular to the first direction X, thereby avoiding contact between the clamping member 400 and the first blade of the turbine rotor 200, reducing the possibility of damage to the first blade, and thus improving the service life of the starter motor turbine.

[0080] In some embodiments, see Figure 3 and Figure 6 The second friction member 420 has a third surface 421, a fourth surface 422 and a second friction surface 423. The third surface 421 and the fourth surface 422 are opposite to each other in a direction perpendicular to the first direction X and are respectively connected to the second body 410. The third surface 421 faces the connecting portion 220. The second friction surface 423 is arranged between the third surface 421 and the fourth surface 422 in a direction perpendicular to the first direction X and is respectively connected to the third surface 421 and the fourth surface 422. The second friction surface 423 has a second groove 424, and the second groove 424 runs through the third surface 421 and the fourth surface 422.

[0081] In the above embodiment, by providing the second groove 424 on the friction surface, the second groove 424 can form an edge on the second friction surface 423. When the second friction surface 423 contacts the connecting portion 220, the second groove 424 can scrape the contact portion between the connecting portion 220 and the second friction surface 423, thereby keeping the contact portion clean. This can reduce the maintenance frequency of the starter motor turbine and improve the reliability of the starter motor turbine. In addition, the second groove 424, which runs through the third surface 421 and the fourth surface 422, can discharge impurities that are scraped and fall into the second groove 424, thereby preventing the impurities from filling the second groove 424.

[0082] In some embodiments, see Figure 1 、 Figure 2 、 Figure 4 and Figure 6The housing assembly 100 includes a first housing 130 and a second housing 140. The first housing 130 has a first cavity 131 and an air inlet 132 communicating with the first cavity 131. The first portion 110, part of the rotating portion 210, and the connecting portion 220 are arranged in the first cavity 131. The second housing 140 has a second cavity 141 and an air outlet 142 communicating with the second cavity 141. The second portion 120 and the clamping member 400 are arranged in the second cavity 141. The second housing 140 is connected to the first housing 130. The first cavity 131 and the second cavity 141 are communicated to form a accommodating cavity 150. The clamping member 400 also includes a sliding portion 430. The sliding portion 430 surrounds the second body 410 and is connected to a side of the second body 410 close to the second housing 140 in a direction perpendicular to the first direction X. The sliding portion 430 is connected to the second body 410. The second body 410 has a silencer hole 411 that passes through the second body 410 along the first direction X.

[0083] In some embodiments, the clamping member 400 having the sound-absorbing hole 411 is a plate having the sound-absorbing hole 411 .

[0084] In some embodiments, see Figure 2 A lubrication groove is provided on one side of the sliding portion 430 toward the second shell 140 in a direction perpendicular to the first direction X. The lubrication groove extends along the circumference of the sliding portion 430. The lubrication groove is used to store grease to lubricate between the sliding portion 430 and the second shell 140, so that the clamping member 400 moves more smoothly when moving along the first direction X.

[0085] In the above embodiment, the housing assembly 100, comprising the first housing 130 and the second housing 140, exposes the accommodating cavity 150, facilitating assembly and disassembly of the turbine rotor 200, the clamping member 400, and the turbine guide vanes 160. Furthermore, the air inlet 132 provided on the first housing 130 and the air outlet 142 provided on the second housing 140 allow compressed gas entering the accommodating cavity 150 to propel the turbine rotor 200 toward the second housing 140 having the air outlet 142. Furthermore, the sliding portion 430 in contact with the second housing 140 guides the clamping member 400 during movement, reducing the possibility of deformation of the clamping member 400. Furthermore, the muffler hole 411 in the clamping member 400 reduces noise during operation of the starter motor turbine, thereby improving the performance of the starter motor turbine.

[0086] In some embodiments, see Figure 2The first shell 130 also has a first end face 133 and a positioning groove 134. The first cavity 131 forms an opening on the first end face 133. The positioning groove 134 is arranged on the first end face 133 and is arranged around the opening. The second shell 140 is connected to the first end face 133 and covers the opening. Part of the second shell 140 and part of the sliding part 430 are arranged in the positioning groove 134.

[0087] In the above embodiment, before securing the first and second housings 130, 140, the first and second housings 130, 140 are first positioned using the positioning grooves 134, thereby reducing the difficulty of installing the first and second housings 130, 140. Furthermore, the portion of the sliding portion 430 disposed within the positioning grooves 134 is located on the side of the sliding portion 430 that faces the first housing 130 along the first direction X. Therefore, gas flowing along the first housing 130 in a direction toward the first housing 130 is less likely to carry impurities and bypass the portion of the sliding portion 430 located within the positioning grooves 134 and enter between the sliding portion 430 and the housing. This reduces the maintenance frequency of the starter motor turbine and improves its reliability.

[0088] In some embodiments, see Figure 7 and Figure 8 The connecting portion 220 has a third friction surface 2211 and a fourth friction surface 2222 which are opposite to each other along the first direction X. The third friction surface 2211 is used to connect with the first portion 110, and the fourth friction surface 2222 is used to connect with the clamping member 400. The third friction surface 2211 has a third groove 2212, and the fourth friction surface 2222 has a fourth groove 2221.

[0089] In the above embodiment, the third groove 2212 and the fourth groove 2221 are provided to form ridges on the third friction surface 2211 and the fourth friction surface 2222, respectively, which can be used to scrape and clean the surfaces in contact with the third friction surface 2211 and the fourth friction surface 2222. At the same time, the third groove 2212 and the fourth groove 2221 can also be used to store impurities scraped and cleaned.

[0090] In some embodiments, see Figure 3 Along the first direction X, the orthographic projection of the first friction surface 1623 on the third friction surface 2211 is located within the third friction surface 2211, and the first friction surface 1623 can be in contact and connected with the third friction surface 2211, and generate friction force; the orthographic projection of the second friction surface 423 on the fourth friction surface 2222 is located within the fourth friction surface 2222, and the second friction surface 423 can be in contact and connected with the fourth friction surface 2222, and generate friction force.

[0091] In some embodiments, the material of the first friction surface 1623, the second friction surface 423, the third friction surface 2211, and the fourth friction surface 2222 is used to make friction materials. Specifically, the material used to make the friction plate can be one or more of asbestos and friction materials, semi-metallic friction materials, organic friction materials, and ceramic friction materials.

[0092] In some embodiments, see Figure 3 The turbine rotor 200 further includes a first friction portion 221 and a second friction portion 222. The first friction portion 221 is connected to a side of the connecting portion 220 close to the first portion 110 along the first direction X. The first friction portion 221 has a third friction surface 2211, and a first connecting surface 2213 and a second connecting surface 2214 that are opposite to each other in a direction perpendicular to the first direction X and are respectively connected to the connecting portion 220. The first connecting surface 2213 is close to the connecting portion 220. The third friction surface 2211 is arranged between the first connecting surface 2213 and the second connecting surface 2214 in a direction perpendicular to the first direction X, and respectively connects the first connecting surface 2213 and the second connecting surface 2214. The third groove 2212 passes through the first connecting surface 2213 and the second connecting surface 2214; the second friction portion 222 is connected to the side of the connecting portion 220 close to the clamping member 400 along the first direction X, the second friction portion 222 has a fourth friction surface 2222, and a third connecting surface 2223 and a fourth connecting surface 2224 that are opposite to each other in a direction perpendicular to the first direction X and are respectively connected to the connecting portion 220, the third connecting surface 2223 is close to the connecting portion 220, the fourth friction surface 2222 is arranged between the third connecting surface 2223 and the fourth connecting surface 2224 along a direction perpendicular to the first direction X, and respectively connects the third connecting surface 2223 and the fourth connecting surface 2224, and the fourth groove 2221 runs through the third connecting surface 2223 and the fourth connecting surface 2224.

[0093] In the above embodiment, the third groove 2212 passing through the first connecting surface 2213 and the second connecting surface 2214 can discharge impurities stored in the third groove 2212; the fourth groove 2221 passing through the third connecting surface 2223 and the fourth connecting surface 2224 can discharge impurities stored in the fourth groove 2221.

[0094] In some embodiments, see Figure 1 The first part 110 has a first mounting hole 111 on one side facing the second part 120 along the first direction X, and the second part 120 has a second mounting hole 121 on one side facing the first part 110 along the first direction X. The two ends of the rotating part 210 along the first direction X are respectively passed through the first mounting hole 111 and the second mounting hole 121, and the first elastic member 300 is arranged in the second mounting hole 121.

[0095] Specifically, in some embodiments, the first elastic member 300 is a wave spring to shorten the size of the second mounting hole 121 along the first direction X, so that the size of the starter motor turbine in the first direction X is smaller.

[0096] In the above embodiment, the first mounting hole 111 and the second mounting hole 121 can limit the turbine rotor 200 in a direction perpendicular to the first direction X, and can also guide the movement of the turbine rotor 200 in the first direction X.

[0097] In some embodiments, the starter motor turbine also includes a first bearing member 600 and a third elastic member 800, the first bearing member 600 is arranged in the first mounting hole 111, and the first bearing member 600 connects the rotating part 210 and the first part 110; the third elastic member 800 is arranged in the first mounting hole 111, one end of the third elastic member 800 is connected to the first bearing member 600, and the other end is connected to the first part 110.

[0098] In the above embodiment, the first bearing member 600 is provided to reduce the rotational friction of the turbine rotor 200, thereby improving the mechanical efficiency of the starter motor turbine. Furthermore, the third elastic member 800 is provided to push the first bearing member 600 toward the second portion 120 in the first direction X, allowing the first bearing member 600 to follow the movement of the rotating portion 210 in the first direction X, thereby reducing the possibility of relative movement between the rotating portion 210 and the first bearing member 600 in the first direction X.

[0099] Specifically, the rotating portion 210 has a first shoulder portion, and the first bearing component 600 is sandwiched between the first shoulder portion and the third elastic component 800 along the first direction X. The third elastic component 800 enables the first bearing component 600 to maintain contact with the first shoulder portion.

[0100] In some embodiments, see Figure 1 The starter motor turbine also includes a second bearing member 700, which is arranged in the second mounting hole 121. The second bearing member 700 connects the rotating part 210 and the second part 120. The second bearing member 700 is also used to reduce the rotational friction of the turbine rotor 200, thereby improving the mechanical efficiency of the starter motor turbine.

[0101] Specifically, the rotating portion 210 further includes a second shoulder portion. The second bearing member 700 is sandwiched between the second shoulder portion and the first elastic member 300 along the second direction. The first elastic member 300 maintains contact between the second bearing member 700 and the second shoulder portion, thereby reducing the possibility of relative movement between the rotating portion 210 and the second bearing member 700 along the first direction X. Simultaneously, the first elastic member 300 pushes the second bearing member 700 along the first direction X, thereby indirectly pushing the second shoulder portion and thereby pushing the turbine rotor 200 to move along the first direction X.

[0102] Accordingly, the present application also provides an engine, comprising a starter motor turbine as in any one of the above embodiments.

[0103] The above is a detailed introduction to a starter motor turbine and engine provided in the embodiments of the present application. Specific examples are used in this application to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A starter motor turbine, characterized in that: include: A housing assembly (100), the housing assembly (100) having a receiving cavity (150) and an air inlet (132) and an air outlet (142) communicating with the receiving cavity (150), the housing assembly (100) comprising a first portion (110) and a second portion (120) disposed in the receiving cavity (150) and spaced apart along a first direction (X); A turbine rotor (200), the turbine rotor (200) comprising a rotating portion (210) and a connecting portion (220), the rotating portion (210) being rotatably connected to the first portion (110) and the second portion (120) at both ends along the first direction (X), the connecting portion (220) being arranged between the first portion (110) and the second portion (120) along the first direction (X); gas flowing from the air inlet (132) to the air outlet (142) can drive the connecting portion (220) to move in a direction away from the first portion (110); a first elastic member (300), wherein the first elastic member (300) is connected to the rotating portion (210) and the second portion (120) at two ends along the first direction (X), respectively, and the first elastic member (300) is capable of driving the rotating portion (210) to move toward the first portion (110) along the first direction (X), so that the connecting portion (220) is connected to the first portion (110) along the first direction (X); A clamping member (400), the clamping member (400) is connected to the second portion (120), and the clamping member (400) is arranged on a side of the connecting portion (220) away from the first portion (110) along the first direction (X); the gas flowing from the air inlet (132) to the air outlet (142) can drive the clamping member (400) to move in a direction away from the connecting portion (220).

2. The starter motor turbine according to claim 1, characterized in that The starter motor further comprises: A second elastic member (500), wherein one end of the second elastic member (500) is connected to the second portion (120) along the first direction (X), and the other end is connected to the clamping member (400), and the second elastic member (500) can drive the clamping member (400) to move toward the connecting portion (220) along the first direction (X) so that the clamping member (400) is connected to the connecting portion (220) along the first direction (X).

3. The starter motor turbine according to claim 1, characterized in that The housing assembly (100) includes a turbine guide vane (160), the turbine guide vane (160) being arranged on a side of the connecting portion (220) close to the first portion (110) along the first direction (X), the turbine guide vane (160) being connected to the first portion (110), and the first elastic member (300) being capable of driving the rotating portion (210) to move so that the connecting portion (220) is connected to the turbine guide vane (160) along the first direction (X).

4. The starter motor turbine according to claim 3, characterized in that The turbine guide vane (160) includes: a first body (161), wherein the first body (161) is sleeved on the first portion (110), and the first body (161) and the connecting portion (220) are spaced apart along the first direction (X); A first friction member (162), the first friction member (162) is connected to a side of the first body (161) along the first direction (X) toward the connecting portion (220), and the first friction member (162) is used to connect to the connecting portion (220).

5. The starter motor turbine according to claim 4, characterized in that The first friction member (162) has a first surface (1621), a second surface (1622) and a first friction surface (1623); the first surface (1621) and the second surface (1622) are opposed to each other in a direction perpendicular to the first direction (X) and are respectively connected to the first body (161); the first surface (1621) faces the connecting portion (220); the first friction surface (1623) is arranged between the first surface (1621) and the second surface (1622) in a direction perpendicular to the first direction (X) and is respectively connected to the first surface (1621) and the second surface (1622); the first friction surface (1623) has a first groove (1624); the first groove (1624) runs through the first surface (1621) and the second surface (1622).

6. The starter motor turbine according to claim 2, characterized in that The clamping member (400) comprises: a second body (410), wherein the second body (410) is sleeved on the second portion (120), and the second body (410) and the connecting portion (220) are spaced apart along the first direction (X); A second friction member (420) is connected to a side of the second body (410) along the first direction (X) toward the connecting portion (220), and the second friction member (420) is used to be connected to the connecting portion (220).

7. The starter motor turbine according to claim 6, characterized in that The second friction member (420) has a third surface (421), a fourth surface (422) and a second friction surface (423); the third surface (421) and the fourth surface (422) are opposed to each other along a direction perpendicular to the first direction (X) and are respectively connected to the second body (410); the third surface (421) faces the connecting portion (220); the second friction surface (423) is arranged between the third surface (421) and the fourth surface (422) along a direction perpendicular to the first direction (X) and is respectively connected to the third surface (421) and the fourth surface (422); the second friction surface (423) has a second groove (424); the second groove (424) runs through the third surface (421) and the fourth surface (422).

8. The starter motor turbine according to claim 6, characterized in that The housing assembly (100) comprises: a first shell (130), the first shell (130) having a first cavity (131) and the air inlet (132) communicating with the first cavity (131), the first portion (110), part of the rotating portion (210) and the connecting portion (220) being arranged in the first cavity (131); a second shell (140), the second shell (140) having a second cavity (141) and the air outlet (142) communicating with the second cavity (141), the second portion (120) and the clamping member (400) being disposed in the second cavity (141), the second shell (140) being connected to the first shell (130), and the first cavity (131) and the second cavity (141) being communicated to form the accommodating cavity (150); The clamping member (400) further includes a sliding portion (430), the sliding portion (430) surrounds the second body (410), and the sliding portion (430) is connected to a side of the second body (410) close to the second shell (140) in a direction perpendicular to the first direction (X), and the sliding portion (430) is connected to the second body (410); the second body (410) has a silencer hole (411) that passes through the second body (410) along the first direction (X).

9. The starter motor turbine according to claim 8, characterized in that The first shell (130) further comprises a first end face (133) and a positioning groove (134); the first cavity (131) forms an opening at the first end face (133); the positioning groove (134) is arranged on the first end face (133) and surrounds the opening; the second shell (140) is connected to the first end face (133) and covers the opening; a portion of the second shell (140) and a portion of the sliding portion (430) are arranged in the positioning groove (134).

10. The starter motor turbine according to claim 2, characterized in that The connecting portion (220) has a third friction surface (2211) and a fourth friction surface (2222) which are opposite to each other along a first direction (X), the third friction surface (2211) is used to connect with the first portion (110), and the fourth friction surface (2222) is used to connect with the clamping member (400), the third friction surface (2211) has a third groove (2212), and the fourth friction surface (2222) has a fourth groove (2221).

11. The starter motor turbine according to claim 10, characterized in that The turbine rotor (200) further comprises: a first friction portion (221), the first friction portion (221) being connected to a side of the connecting portion (220) close to the first portion (110) along the first direction (X), the first friction portion (221) comprising the third friction surface (2211), and a first connecting surface (2213) and a second connecting surface (2214) which are opposite to each other and respectively connected to the connecting portion (220) along a direction perpendicular to the first direction (X), the first connecting surface (2213) being close to the connecting portion (220), the third friction surface (2211) being arranged between the first connecting surface (2213) and the second connecting surface (2214) along a direction perpendicular to the first direction (X), and respectively connecting the first connecting surface (2213) and the second connecting surface (2214), and the third groove (2212) running through the first connecting surface (2213) and the second connecting surface (2214); A second friction portion (222), the second friction portion (222) is connected to a side of the connecting portion (220) close to the clamping member (400) along the first direction (X), the second friction portion (222) has the fourth friction surface (2222), and a third connecting surface (2223) and a fourth connecting surface (2224) which are opposite to each other in a direction perpendicular to the first direction (X) and are respectively connected to the connecting portion (220), the third connecting surface (2223) is close to the connecting portion (220), the fourth friction surface (2222) is arranged between the third connecting surface (2223) and the fourth connecting surface (2224) in a direction perpendicular to the first direction (X), and respectively connects the third connecting surface (2223) and the fourth connecting surface (2224), and the fourth groove (2221) runs through the third connecting surface (2223) and the fourth connecting surface (2224).

12. The starter motor turbine according to claim 1, characterized in that The first part (110) has a first mounting hole (111) on one side facing the second part (120) along the first direction (X), and the second part (120) has a second mounting hole (121) on one side facing the first part (110) along the first direction (X). The two ends of the rotating part (210) along the first direction (X) are respectively penetrated through the first mounting hole (111) and the second mounting hole (121), and the first elastic member (300) is arranged in the second mounting hole (121).

13. The starter motor turbine according to claim 12, characterized in that The starter motor turbine further comprises: a first bearing member (600), the first bearing member (600) being disposed in the first mounting hole (111), the first bearing member (600) connecting the rotating portion (210) and the first portion (110); A third elastic member (800) is provided in the first mounting hole (111), one end of the third elastic member (800) is connected to the first bearing member (600), and the other end is connected to the first part (110).

14. An engine, characterized in that: Comprising a starter motor turbine as claimed in any one of claims 1-13.

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