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Valve-opening/closing-timing control device, and production method for drive-side rotational body of valve-opening/closing-timing control device

A technology of opening and closing period and control device, applied in valve devices, engine components, machines/engines, etc., can solve problems such as easy wear and oil leakage, and achieve the effects of suppressing leakage, improving tightness, and good action response.

Inactive Publication Date: 2015-10-28
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the housing main body is made of metal such as aluminum, the inner peripheral surface of the housing main body is easily worn due to sliding against seal members, etc., causing oil leakage.

Method used

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  • Valve-opening/closing-timing control device, and production method for drive-side rotational body of valve-opening/closing-timing control device
  • Valve-opening/closing-timing control device, and production method for drive-side rotational body of valve-opening/closing-timing control device
  • Valve-opening/closing-timing control device, and production method for drive-side rotational body of valve-opening/closing-timing control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] 〔the whole frame〕

[0031] Such as figure 1 As shown, the valve opening and closing timing control device includes: a casing 1 (an example of a driving side rotating body) that rotates synchronously with the crankshaft E1 of the engine E; The internal rotor 3 (an example of a driven side rotating body). The casing 1 and the inner rotor 3 are disposed on the same axis X.

[0032] 〔Housing and rotor〕

[0033] Such as figure 1 and figure 2 As shown, the housing 1 is provided with: a front plate 4 (an example of a cover plate) provided on the front side, that is, the opposite side of the camshaft 2; a rear plate 5 (an example of a cover plate) provided on the rear side, that is, the side of the camshaft 2; An external rotor 6 (an example of a housing main body) is interposed between the front plate 4 and the rear plate 5 . Sprocket teeth are formed on the outer peripheral portion of the rear plate 5 . The front plate 4, the rear plate 5, and the external rotor 6 are...

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PUM

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Abstract

Provided is a valve-opening / closing-timing control device with which oil leakage from gaps between members configuring a drive-side rotational body is suppressed, while maintaining lubrication and abrasion resistance of a slide surface of a housing main body. The present invention is provided with: a drive-side rotational body which synchronously rotates with a crank shaft, and which is provided with a housing main body having an opening at at least one side thereof in a direction along a rotational axis (X), and a cover plate that is brought into contact with an end surface of the opening to occlude the opening; and a driven-side rotational body which is provided inside the drive-side rotational body, demarcates, between an inner peripheral surface of the housing main body and the driven-side rotational body, an advance chamber and a retardation chamber, and rotates integrally with a cam shaft and concentrically with the rotational axis. The housing main body is provided with a hard layer formed on at least the inner peripheral surface thereof, among surfaces thereof excluding the end surface of the opening.

Description

technical field [0001] The present invention relates to a valve opening and closing timing control device and a method for manufacturing a driving side rotary body constituting the valve opening and closing timing control device. The inner peripheral side of the rotating body is relatively rotatable on the coaxial core, and the driven side rotating body rotates integrally with the camshaft for valve opening and closing of the internal combustion engine. Background technique [0002] The valve opening and closing timing control device changes the opening and closing timing of an intake valve or an exhaust valve of an internal combustion engine by controlling the rotational phase of a driven side rotating body with respect to a casing main body constituting a driving side rotating body. At this time, the inner peripheral surface of the housing main body and, for example, a partition member provided on the driven side rotating body slide against each other, but such a sliding p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/356C25D11/04
CPCC25D11/04C25D7/10C25D11/022F01L1/3442F01L2001/34479F01L2101/00F01L2103/00F01L1/356F01L2301/00F01L2303/00
Inventor 朝日丈雄野口祐司安达一成杉本祯
Owner AISIN SEIKI KK