HYDRAULIC VALVE MECHANISM ACHIEVING VARIABLE NUMBER OF TIMES OF OPENING OF VALVE, AND INTERNAL COMBUSTION ENGINE

Title:

HYDRAULIC VALVE MECHANISM ACHIEVING VARIABLE NUMBER OF TIMES OF OPENING OF VALVE, AND INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2021/008155

Kind Code:

A1

Abstract:

Disclosed are a hydraulic valve mechanism achieving the variable number of times of opening of a valve, and an internal combustion engine. The hydraulic valve mechanism comprises a housing (4), a valve cam (1) provided with a primary protrusion (1-1) and at least one secondary protrusion (1-2), a hydraulic rotary valve (3) having a hydraulic switch valve function, a hydraulic driving component (2), a valve driving component (5), etc., wherein the hydraulic driving component (2), the hydraulic rotary valve (3) and the valve driving component (5) are in communication with one another via oil paths. The problem in the prior art of a valve being opened multiple times only by means of a high-frequency solenoid valve is solved, a one-time valve opening working mode and a two-time or multiple-time valve opening working mode in the same working cycle can be effectively realized, and various kinds of working modes can be rapidly and stably switched according to working condition requirements of an internal combustion engine. The hydraulic valve mechanism plays an important role in improving the exhaust thermal management performance of the internal combustion engine, implementing the secondary intake of an intake valve, achieving exhaust braking inside a cylinder, etc.

Inventors:

WANG ZHAOYU (CN)
XIE ZONGFA (CN)
HAN KANG (CN)

Application Number:

PCT/CN2020/080041

Publication Date:

January 21, 2021

Filing Date:

March 18, 2020

Export Citation:

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Assignee:

LONGKOU ZHONGYU INVEST HOLDING LTD (CN)

International Classes:

F01L13/06; F01L1/14; F01L9/14

Foreign References:

CN110344908A	2019-10-18
CN102787880A	2012-11-21
CN108868935A	2018-11-23
CN108779689A	2018-11-09
US20040103868A1	2004-06-03
US6439195B1	2002-08-27

Other References: