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Cam shaft phase position regulator and assembly method thereof

A phase adjuster and camshaft technology, applied in valve devices, machines/engines, engine components, etc., can solve problems such as the inclination of the hook 50, the contact with the return spring, the inability of the pin 4 to be inserted into the hook, etc., and achieve good stability. , the effect of easy assembly

Inactive Publication Date: 2016-02-17
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the step of inserting the pin 4 aligned with the crotch 50, the pin 4 may touch the return spring 5 due to misalignment with the crotch 50.
When the return spring 5 is touched by the pin 4, it is easy to turn over in the receiving groove 20, causing the crotch 50 to tilt, and then there is a problem that the pin 4 cannot be inserted into the crotch 50

Method used

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  • Cam shaft phase position regulator and assembly method thereof
  • Cam shaft phase position regulator and assembly method thereof
  • Cam shaft phase position regulator and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0029] Such as Figure 4 As shown, the camshaft phase adjuster of this embodiment includes: a stator 10; a rotor 20, which is rotatably located in the stator 10, and is provided with a plurality of receiving grooves 21 arranged at regular intervals along the circumferential direction of the rotor 20, and the receiving grooves 21 Located on the end face of the rotor 20 and penetrating through the rotor 20 in the axial direction of the rotor 20, the receiving groove 21 has an end wall 22 and an end wall 23 arranged at intervals along the circumferential direction of the rotor 20, and two oppositely arranged along the radial direction of the rotor 20. The side wall 24; the end cover 30 is fixedly connected with the stator 10 on one axial side of the stator 10; the pin 40 is connected with the end cover 30 in a twist-resistant manner, and the end extends into the receiving groove 21; Spring 50.

[0030] The two ends of the return spring 50 along the stretching direction face the ...

no. 2 example

[0049] The difference between the second embodiment and the first embodiment is that in the second embodiment, as Figure 8 As shown, the prismatic spring is a triangular prism, and each spring ring 510 is basically triangular in shape. The storage groove 21 does not penetrate the rotor along the axial direction of the rotor. coincides with each other and is triangular, and the cross-section is a cross-section obtained by cutting the receiving groove 21 using the axial section of the rotor.

[0050] By making the cross-sectional shape of the receiving groove 21 conform to the shape projected along the central axis direction of the prismatic spring, the prismatic spring is placed behind the receiving groove 21, so that each side edge 513 of the prismatic spring can be aligned with the shape of the receiving groove 21. The sidewalls 24 are in contact, and the frames 512 of the spring ring 510 that are in contact with the sidewalls 24 are all parallel to the sidewalls 24 , and th...

no. 3 example

[0052] The difference between the third embodiment and the second embodiment is that in the second embodiment, as Figure 9 As shown, the cross-sectional shape of the storage tank 21 does not match the shape projected along the central axis direction of the prismatic spring, the former is a rectangle, and the latter is a triangle; in the two side walls 24 of the storage tank 21, one of the side walls 24 and The frame 512 of the spring ring 510 is parallel, and the two are attached together seamlessly, and the other side wall 24 is in contact with the side edge 513 of the prismatic spring.

[0053] It should be noted that the shape of the prismatic spring should not be limited to the given embodiment, and it can also be a shape. For example, the projection of the prismatic spring along its central axis may be trapezoidal, hexagonal, etc.

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PUM

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Abstract

The invention relates to a cam shaft phase position regulator and an assembly method thereof. The regulator comprises a stator, a rotor, a reset spring, an end cover and a pin, wherein the rotor is rotationally located in the stator, the end surface of the rotor is provided with a containing groove, and the containing groove is provided with two end walls arranged in the peripheral direction of the rotor in a spaced mode and two lateral walls arranged in the radial direction of the rotor oppositely. The reset spring is located in the containing groove, and the two ends of the reset spring in the stretching direction face the two end walls respectively. The end cover is fixedly connected with the stator on the axial side of the stator. The pin is connected with the end cover in a torsion resistance mode, the end of the pin extends into the containing grove and is connected with one end of the reset spring, at least one section of the reset spring is a prismatic spring, at least one lateral edge of the prismatic spring makes contact with one lateral wall, and two lateral edges of the prismatic spring make contact with the other lateral wall. By means of the technical scheme, the cam shaft phase position regulator is easier to assemble.

Description

technical field [0001] The present invention relates to the technical field of variable cam timing (Variable Camshaft Timing, referred to as VCT), in particular to a camshaft phase adjuster and an assembly method thereof. Background technique [0002] The existing camshaft phase adjuster has the problems of occupying a large space and complicated manufacture and installation. In order to solve this problem, the applicant proposed a solution, such as figure 1 As shown, the camshaft phase adjuster includes: a stator 1; a rotor 2, which is rotatably located in the stator 1 and is provided with a receiving groove 20. The end wall 21, the end wall 22, and two side walls 23 arranged radially opposite to each other along the rotor 2; combined figure 2 As shown, the sprocket 3 is fixedly connected with the stator 1 on the axial side of the stator 1 and is provided with a pin hole 30; the pin 4 is connected to the sprocket 3 in a torsion-resistant manner, and extends from the pin h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344
Inventor 陈春荣
Owner SCHAEFFLER TECH AG & CO KG