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Direct acting cda device

A kind of equipment and function technology, which is applied in the field of direct-acting cylinder deactivation equipment, and can solve the problems such as the friction force generated by the anti-rotation pin 90

Inactive Publication Date: 2012-06-06
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this creates a problem: when the outer body moves, the anti-rotation pin 90 creates friction

Method used

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Embodiment Construction

[0028] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that this description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims implementation.

[0029] Various embodiments of the direct-acting CDA apparatus according to the present invention include an outer body 100, which is a cylindrical hollow body, and an upper seat 300, which, when smoothly contacting the cam, moves up and down according to the rotation of the cam , the upper seat 300 is located in the outer body 100 , whic...

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PUM

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Abstract

The present invention relates to a direct acting CDA device which may include an outer body glidingly contacting a cam and moving up and down, an hollow upper seat located in the outer body and restricted to the movement of the outer body, an oil passage formed between the outer body and the upper seat, a latching device insertion hole formed in a transverse direction in the oil passage, an hollow inner body located in the upper seat, latching devices inserted in the latching device insertion hole and selectively restricting the movement of the inner body to the movement of the outer body by selective oil supply, and a lost motion spring located in the hollow spaces of the upper seat and the inner body, supported by the inner body and providing the outer body with an elastic force so that the outer body can selectively take a lost motion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority from Korean Patent Application No. 10-2010-0123059 filed with the Korean Intellectual Property Office on December 3, 2010, the entire contents of which are incorporated herein for all purposes of this reference. technical field [0003] The present invention relates to a direct-acting cylinder deactivation (CDA) device. More particularly, the present invention relates to such a direct acting cylinder deactivation (CDA) device in which movement of the inner body is effected by engaging locking devices on both sides of the upper seat and selectively supplying oil Subject to movement of the outer body. Background technique [0004] In general, an internal combustion engine generates power by burning fuel and air drawn into a combustion chamber. The intake valve is operated by the camshaft, and air is drawn into the combustion chamber when the intake valve opens. Likewise, the exhaust val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L9/02F01L9/11
CPCF01L2013/001F01L2107/00F01L13/0005F01L13/06F01L1/143F01L2307/00
Inventor 崔命植
Owner HYUNDAI MOTOR CO LTD