Rotor engine

Abstract

The utility model discloses a rotor engine, which belongs to the technical field of engines and comprises a rotor component, a propeller flange, a carburetor, an exhaust pipe and a mounting bracket, the rotor assembly comprises a cylinder body, an eccentric shaft, a front cylinder cover, a rear cylinder cover and a rotor main body, the front cylinder cover is in sealed connection with the right side of the cylinder body, the rear cylinder cover is in sealed connection with the left side of the cylinder body, and an elastic sealing assembly is arranged in the cylinder body and tightly abuts against the front cylinder cover and the rear cylinder cover; the rotor body is fixedly arranged on the eccentric shaft and arranged in the cylinder body, the propeller flange is connected with the portion, extending out of the front cylinder cover, of the eccentric shaft in a sealed mode, the installation support is fixedly connected with the rear cylinder cover, the carburetor is fixedly arranged on the installation support and communicated with the cylinder body, and the carburetor is fixedly arranged on the installation support and communicated with the cylinder body. And the exhaust pipe is communicated with the cylinder body. The assembly tightness between the cylinder body and the front cylinder cover and the assembly tightness between the cylinder body and the rear cylinder cover can be improved, the assembly sealing effect is guaranteed, and the operation stability of the rotor engine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a rotary engine. Background Art

[0002] The engine (also commonly referred to as an internal combustion engine) mainly uses the combustion of fossil fuels as a power source to drive the equipment connected to its output shaft. For example, most of the vehicles used in daily life (cars, motorcycles, buses, airplanes, helicopters, etc.) are driven by engines. Among them, when the rotor of the rotary engine rotates in the engine cylinder, it is an eccentric rotation, which drives the output shaft to rotate eccentrically. The assembly between the eccentric shaft, cylinder body, front cylinder head and rear cylinder head needs to be sealed, but at present, the rotary engine cylinder body and the front cylinder head and rear cylinder head cannot be guaranteed to fit tightly, which affects the stability of the rotary engine operation. Utility Model Content

[0003] The main purpose of the utility model is to solve the above-mentioned technical problems to a certain extent, and to provide a rotary engine that can improve the tightness of the assembly between the cylinder body and the front cylinder head and the rear cylinder head, ensure the sealing effect of the assembly, and improve the stability of the rotary engine operation.

[0004] The above-mentioned problem to be solved by the utility model is achieved through the following technical solutions:

[0005] A rotary engine is proposed, comprising a rotor assembly, a propeller flange, a carburetor, an exhaust pipe and a mounting bracket; the rotor assembly comprises a cylinder body, an eccentric shaft, a front cylinder head, a rear cylinder head and a rotor body, the front cylinder head is sealed and connected to the right side of the cylinder body, the rear cylinder head is sealed and connected to the left side of the cylinder body, and an elastic sealing assembly is tightly arranged inside the cylinder body and against the front cylinder head and the rear cylinder head;

[0006] The rotor body is fixed on the eccentric shaft and placed inside the cylinder body, the propeller flange is sealed and connected to the portion of the eccentric shaft extending out of the front cylinder head, the mounting bracket is fixedly connected to the rear cylinder head, the carburetor is fixed on the mounting bracket and is connected to the cylinder body through a sealed air inlet joint, an internal cooling air intake pipe is connected to the carburetor, the exhaust pipe is connected to the cylinder body, a counterweight is provided on the portion of the eccentric shaft extending out of the rear cylinder head, and a small pulley is mounted on the end thereof.

[0007] In some embodiments, the cylinder body, the front cylinder head and the rear cylinder head are assembled and connected by means of positioning pins, and a nut washer is provided on one side of the positioning pin located on the front cylinder head.

[0008] In some embodiments, the elastic sealing assembly includes a first radial sealing sheet, a second radial sealing sheet and a radial sealing spring, wherein the first radial sealing sheet and the second radial sealing sheet respectively press against the two ends of the radial sealing spring, wherein the first radial sealing sheet is sealed in contact with the front cylinder head, and the second radial sealing sheet is sealed in contact with the rear cylinder head, and small column springs are respectively provided at the two ends of the cylinder body that are in contact with the radial sealing spring, and the sealing columns arranged on the front cylinder head and the rear cylinder head are respectively sealed in contact with the corresponding small column springs.

[0009] In some embodiments, the elastic sealing assembly also includes an end face sealing strip and an end face sealing spring. The end face sealing strips are respectively arranged in grooves set in the cylinder body, and the two ends of the end face sealing spring are respectively pressed against the cylinder body and the end face sealing strip.

[0010] In some embodiments, a locking piece is provided between the right end of the eccentric shaft and the propeller flange for fixing the position of the propeller flange, and a propeller pressure plate is mounted on the outside of the propeller flange.

[0011] In some embodiments, a ball bearing seat is sealed on the outside of the front cylinder cover where it contacts the eccentric shaft, a ball bearing is provided inside the ball bearing seat in contact with the outer wall of the eccentric shaft, and a ball bearing retaining ring and an oil seal are provided to tighten the ball bearing.

[0012] The above technical solution provided by this application has the following advantages compared with the prior art:

[0013] The utility model provides an elastic sealing assembly at the position where the cylinder body is assembled with the front cylinder head and the rear cylinder head, wherein the first radial sealing sheet and the second radial sealing sheet press downwardly against the radial sealing spring, so that the radial sealing spring opens to both sides, and while opening, both ends act on the small column spring, and the force is transmitted to the sealing small column through the small column spring, so that the sealing small column is tightly fitted with the corresponding front cylinder head and the rear cylinder head, thereby improving the tightness of the assembly between the cylinder body and the front cylinder head and the rear cylinder head, ensuring the sealing effect of the assembly, and improving the stability of the operation of the rotary engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 It is a cross-sectional view of the rotary engine of the utility model;

[0016] Figure 2 This is a structural diagram of the rotary engine of the utility model;

[0017] Figure 3 It is a cross-sectional view of the rotor assembly of the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0019] Description of Figure Numbers:

[0020] 1-rotor assembly; 101-cylinder block; 102-eccentric shaft; 103-front cylinder head; 104-rear cylinder head; 105-rotor body; 106-locating pin; 2-propeller flange; 3-carburetor; 4-exhaust pipe; 5-mounting bracket; 6-elastic sealing assembly; 601-first radial sealing plate; 602-second radial sealing plate; 603-radial sealing spring; 604-small column spring; 605-sealing small column; 606-end face sealing strip; 607-end face sealing spring; 7-ball bearing seat; 8-ball bearing; 9-ball bearing retaining ring; 10-oil seal; 11-locking piece; 12-propeller pressure plate; 13-inlet connector; 14-internal cooling intake pipe; 15-counterweight; 16-small pulley. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] like Figure 1-4 As shown, the utility model proposes a rotary engine, including a rotor assembly 1, a propeller flange 2, a carburetor 3, an exhaust pipe 4 and a mounting bracket 5; the rotor assembly 1 includes a cylinder body 101, an eccentric shaft 102, a front cylinder head 103, a rear cylinder head 104 and a rotor body 105, the front cylinder head 103 is sealed and connected to the right side of the cylinder body 101, and the rear cylinder head 104 is sealed and connected to the left side of the cylinder body 101, wherein the cylinder body 101, the front cylinder head 103 and the rear cylinder head 104 are assembled and connected by a positioning pin 106, and a nut washer is provided on the side of the positioning pin 106 located at the front cylinder head 103, and as the positioning pin 106 is tightened, the cylinder body 101, the front cylinder head 103 and the rear cylinder head 104 are first sealed and fixedly assembled and connected, and an elastic sealing assembly 6 is provided inside the cylinder body 101 to press against the front cylinder head 103 and the rear cylinder head 104.

[0025] Reference Figure 4 As shown, the specific elastic sealing component 6 includes a first radial sealing sheet 601, a second radial sealing sheet 602 and a radial sealing spring 603, the first radial sealing sheet 601 and the second radial sealing sheet 602 respectively press against the two ends of the radial sealing spring 603, wherein the first radial sealing sheet 601 is sealed and fitted with the front cylinder cover 103, and the second radial sealing sheet 602 is sealed and fitted with the rear cylinder cover 104, and the cylinder body 101 is in contact with the two ends of the radial sealing spring 603 and are respectively provided with small column springs 604, and the sealing small columns 605 provided on the front cylinder cover 103 and the rear cylinder cover 104 are respectively sealed and pressed against the corresponding small column springs 604.

[0026] In this embodiment, an elastic sealing assembly 6 is provided at the position where the cylinder body 101 is assembled with the front cylinder head 103 and the rear cylinder head 104, wherein the first radial sealing sheet 601 and the second radial sealing sheet 602 press the radial sealing spring 603 downward to make the radial sealing spring 603 open to both sides. While opening, both ends act on the small column spring 604, and the force is transmitted to the sealing small column 605 through the small column spring 604, so that the sealing small column 605 is tightly fitted with the corresponding front cylinder head 103 and rear cylinder head 104, thereby improving the tightness of the assembly between the cylinder body 101 and the front cylinder head 103 and the rear cylinder head 104, ensuring the sealing effect of the assembly, and improving the stability of the operation of the rotary engine.

[0027] Furthermore, the elastic sealing assembly 6 also includes an end face sealing strip 606 and an end face sealing spring 607. The end face sealing strip 606 is respectively arranged in the grooves set in the cylinder body 101, and the two ends of the end face sealing spring 607 are respectively pressed against the cylinder body 101 and the end face sealing strip 606. Through this structure, the end face sealing strip 606 is tightly fitted with the corresponding front cylinder head 103 and rear cylinder head 104 under the action of the end face sealing spring 607, and cooperates with the sealing column 605 to improve the tightness of the assembly between the cylinder body 101 and the front cylinder head 103 and the rear cylinder head 104.

[0028] like Figure 3 As shown, the portion of the front cylinder cover 103 that contacts the eccentric shaft 102 is sealed with a ball bearing seat 7, the interior of the ball bearing seat 7 is provided with a ball bearing 8 that fits the outer wall of the eccentric shaft 102, and a ball bearing retaining ring 9 and an oil seal 10 are provided to press against the ball bearing 8, so as to ensure the sealing effect between the protruding portion of the eccentric shaft 102 and the front cylinder cover 103.

[0029] The rotor body 105 is fixed on the eccentric shaft 102 and placed inside the cylinder body 101, the propeller flange 2 is sealed and connected to the part of the eccentric shaft 102 extending out of the front cylinder cover 103, and the right end of the eccentric shaft 102 is pressed against the propeller flange 2 and a locking piece 11 is provided to fix the assembly position of the propeller flange 2 and the eccentric shaft 102, and a propeller pressure plate 12 is installed on the outside of the propeller flange 2; the mounting bracket 5 is fixedly connected to the rear cylinder cover 104, the carburetor 3 is fixed on the mounting bracket 5 and is connected to the cylinder body 101 through a sealed air inlet joint 13, an internal cooling air intake pipe 14 is provided in communication with the carburetor 3, the exhaust pipe 4 is connected to the cylinder body 101, and the part of the eccentric shaft 102 extending out of the rear cylinder cover 104 is provided with a counterweight 15, and a small pulley 16 is installed at its end.

[0030] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A rotary engine, characterized in that: It includes a rotor assembly, a propeller flange, a carburetor, an exhaust pipe and a mounting bracket; the rotor assembly includes a cylinder body, an eccentric shaft, a front cylinder head, a rear cylinder head and a rotor body, the front cylinder head is sealed and connected to the right side of the cylinder body, the rear cylinder head is sealed and connected to the left side of the cylinder body, and an elastic sealing assembly is tightly arranged inside the cylinder body and against the front cylinder head and the rear cylinder head; The rotor body is fixed on the eccentric shaft and placed inside the cylinder body, the propeller flange is sealed and connected to the portion of the eccentric shaft extending out of the front cylinder head, the mounting bracket is fixedly connected to the rear cylinder head, the carburetor is fixed on the mounting bracket and is connected to the cylinder body through a sealed air inlet joint, an internal cooling air intake pipe is connected to the carburetor, the exhaust pipe is connected to the cylinder body, a counterweight is provided on the portion of the eccentric shaft extending out of the rear cylinder head, and a small pulley is mounted on the end thereof.

2. The rotary engine according to claim 1, characterized in that: The cylinder body, the front cylinder cover and the rear cylinder cover are assembled and connected by means of positioning pins, and a nut washer is provided on one side of the positioning pin located on the front cylinder cover.

3. The rotary engine according to claim 1, characterized in that: The elastic sealing assembly includes a first radial sealing sheet, a second radial sealing sheet and a radial sealing spring, wherein the first radial sealing sheet and the second radial sealing sheet respectively press against the two ends of the radial sealing spring, wherein the first radial sealing sheet is sealingly fitted with the front cylinder head, and the second radial sealing sheet is sealingly fitted with the rear cylinder head, and small column springs are respectively provided in contact with the two ends of the cylinder body and the radial sealing spring, and the sealing small columns arranged on the front cylinder head and the rear cylinder head are respectively sealed and pressed against the corresponding small column springs.

4. The rotary engine according to claim 3, characterized in that: The elastic sealing assembly also includes an end face sealing strip and an end face sealing spring. The end face sealing strips are respectively arranged in grooves arranged in the cylinder body. The two ends of the end face sealing spring are respectively pressed against the cylinder body and the end face sealing strip.

5. The rotary engine according to claim 1, characterized in that: The right end of the eccentric shaft is pressed against the propeller flange to form a locking piece for fixing the position of the propeller flange. The outside of the propeller flange is equipped with a propeller pressure plate.

6. The rotary engine according to claim 1, characterized in that: A ball bearing seat is sealed at the part of the front cylinder cover that contacts the eccentric shaft. A ball bearing is provided inside the ball bearing seat that fits the outer wall of the eccentric shaft. A ball bearing retaining ring and an oil seal are provided to press against the ball bearing.

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