Exhaust camshaft adjuster

Abstract

The utility model provides an exhaust camshaft adjuster, and belongs to the technical field of automobile accessories. The problems that an existing exhaust camshaft adjuster is generally poor in protection performance, low in sealing performance and the like are solved. The exhaust camshaft adjuster comprises a sealing plate cover, a sealing plate is fixedly mounted at the top of the front surface of the sealing plate cover, a lock pin positioning sleeve is fixedly mounted at the top of the front surface of the sealing plate, and a torsional spring is fixedly connected to an inner cavity of the sealing plate cover. The lock pin positioning sleeve is additionally arranged on the sealing plate, and the material and the heat treatment mode of the lock pin positioning sleeve are consistent with those of a lock pin, so that the lock pin of the phaser assembly can be stably positioned, the abrasion degree of the sealing plate is reduced, the service life of the sealing plate is prolonged, the sealing performance is improved, frequent replacement is not needed, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, and particularly relates to an exhaust camshaft adjuster. Background Art

[0002] The exhaust camshaft adjuster, also known as the cam deflection regulating valve, is an angular stroke valve, mainly composed of an angular stroke electric actuator and an eccentric semi-ball valve. The actuator adopts an integrated structure and a built-in servo system. Its main function is to change the opening time of the intake and exhaust valves according to the working needs of the engine to achieve high power and torque.

[0003] The current exhaust camshaft adjusters generally have poor protection. During long-term use, the sealing plate will wear and tear, which will lead to reduced sealing of the adjuster, affecting its normal use, reducing the service life of the adjuster, requiring frequent replacement, and increasing costs.

[0004] In order to solve the above technical problems, we designed the exhaust camshaft adjuster. Summary of the invention

[0005] The utility model aims to solve the above problems in the prior art and provide an exhaust camshaft adjuster which reduces wear and improves sealing performance.

[0006] The purpose of the utility model can be achieved through the following technical solutions: an exhaust camshaft adjuster, including a sealing plate cover, a sealing plate is fixedly installed on the top of the front surface of the sealing plate cover, a locking pin positioning sleeve is fixedly installed on the top of the front surface of the sealing plate, and a torsion spring is fixedly connected to the inner cavity of the sealing plate cover.

[0007] The exhaust camshaft adjuster is provided with a lock pin positioning sleeve so that the lock pin of the phaser assembly can be stably positioned, the wear degree of the sealing plate is reduced, the service life of the sealing plate is extended, and the sealing performance is improved, thereby facilitating use.

[0008] In the above exhaust camshaft adjuster, pins are provided through the four corners of the front surface of the sealing plate cover, and a phaser assembly is provided on the right side of the sealing plate. In practical applications, the pins are used to install and fix the phaser assembly, and the fixing pin is inserted into the pin position to fix it, thereby achieving a stable fixing effect.

[0009] In the above exhaust camshaft adjuster, the left side of the phaser assembly respectively penetrates the inner cavity of the lock pin positioning sleeve and the pin, one end of the torsion spring is fixed to the inner cavity of the sealing plate cover, and the other end of the torsion spring is fixed to the left side of the phaser assembly. In actual application, the position of the lock pin positioning sleeve corresponds to the position of the lock pin on the phaser assembly, which can be easily installed.

[0010] In the above exhaust camshaft adjuster, a circular hole is provided at the center of the sealing plate cover surface, and a groove for the torsion spring to extend is provided at the center of the sealing plate cover surface and on the inner wall of the circular hole. In practical applications, the circular hole facilitates the connection between the torsion spring and the phaser assembly, and also facilitates the torsion spring to twist, so that the sealing plate can be stably fixed on the surface of the phaser assembly.

[0011] In the exhaust camshaft adjuster, the surface of the sealing plate is provided with four mounting holes, which are evenly distributed at the four corners of the surface of the sealing plate. In practical applications, the mounting holes can facilitate quick connection between the sealing plate and the phaser assembly.

[0012] Compared with the prior art, the advantages of the exhaust camshaft adjuster are: by adding a locking pin positioning sleeve to the sealing plate, the material and heat treatment method of which are consistent with the locking pin, the locking pin of the phaser assembly can be stably positioned, reducing the degree of wear of the sealing plate, extending the service life of the sealing plate, improving the sealing performance, and eliminating the need for frequent replacement, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the exhaust camshaft adjuster.

[0014] Figure 2 It is a schematic diagram of the left-side sectional structure of the exhaust camshaft adjuster.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the exhaust camshaft adjuster.

[0016] Figure 4 It is a cross-sectional schematic diagram of the matching state of the exhaust camshaft adjuster and the phaser assembly.

[0017] In the figure: 1. Sealing plate cover; 2. Torsion spring; 3. Sealing plate; 4. Lock pin positioning sleeve; 5. Pin; 6. Phaser assembly. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the exhaust camshaft adjuster includes a sealing plate cover 1, a sealing plate 3 is fixedly installed on the top of the front surface of the sealing plate cover 1, a locking pin positioning sleeve 4 is fixedly installed on the top of the front surface of the sealing plate 3, and a torsion spring 2 is fixedly connected to the inner cavity of the sealing plate cover 1.

[0020] Pins 5 are provided through the four corners of the front surface of the sealing plate cover 1, and a phaser assembly 6 is provided on the right side of the sealing plate 3; the left side of the phaser assembly 6 respectively penetrates the inner cavity of the locking pin positioning sleeve 4 and the pin 5, one end of the torsion spring 2 is fixed to the inner cavity of the sealing plate cover 1, and the other end of the torsion spring 2 is fixed to the left side of the phaser assembly 6.

[0021] A circular hole is provided at the center of the surface of the sealing plate cover 1, and a groove for the torsion spring 2 to extend is provided at the center of the surface of the sealing plate cover 1 and on the inner wall of the circular hole; a mounting hole is provided through the surface of the sealing plate 3, and the number of the mounting holes is four and evenly distributed at the four corners of the surface of the sealing plate 3.

[0022] In actual application, the sealing plate 3 is installed on the surface of the phaser assembly 6 so that the locking pin on the camshaft phaser is aligned with the locking pin positioning sleeve 4. After the locking pin is positioned by the locking pin positioning sleeve 4, the cam phaser is synchronized with the sealing plate 3 during operation, thereby reducing friction, reducing the degree of wear of the sealing plate 3, extending the service life of the sealing plate 3, improving the sealing performance, and eliminating the need for frequent replacement, thereby reducing costs.

[0023] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An exhaust camshaft adjuster, comprising a sealing plate cover (1), characterized in that: A sealing plate (3) is fixedly mounted on the top of the front surface of the sealing plate cover (1), a locking pin positioning sleeve (4) is fixedly mounted on the top of the front surface of the sealing plate (3), a torsion spring (2) is fixedly connected to the inner cavity of the sealing plate cover (1), pins (5) are penetrated through the four corners of the front surface of the sealing plate cover (1), a phase shifter assembly (6) is arranged on the right side of the sealing plate (3), and the left side of the phase shifter assembly (6) penetrates the inner cavities of the locking pin positioning sleeve (4) and the pin (5) respectively, one end of the torsion spring (2) is fixed to the inner cavity of the sealing plate cover (1), and the other end of the torsion spring (2) is fixed to the left side of the phase shifter assembly (6).

2. The exhaust camshaft adjuster according to claim 1, characterized in that: A circular hole is provided at the center of the surface of the sealing plate cover (1), and a groove for the torsion spring (2) to extend out is provided at the center of the surface of the sealing plate cover (1) and on the inner wall of the circular hole.

3. The exhaust camshaft adjuster according to claim 1, characterized in that: The surface of the sealing plate (3) is provided with mounting holes extending therethrough, and the number of the mounting holes is four and they are evenly distributed at the four corners of the surface of the sealing plate (3).

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