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Title:
COMPACT MULTI-MODE VALVE DRIVING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/223803
Kind Code:
A1
Abstract:
A compact multi-mode valve driving system, belonging to the fields of engine valve driving, variable stroke engines and assisted braking. The system comprises a first camshaft (101) provided with a bearing bush (2), a second camshaft (102) provided with an exhaust braking cam (201), switching assemblies (701, 702), and a braking switch (703). The bearing bush (2) is provided with an intake four-stroke cam (251), an intake two-stroke cam (252), an exhaust four-stroke cam (261), an exhaust two-stroke cam (262), and two switching slots (271, 272). The two switching assemblies (701, 702) are used to control an axial position of the bearing bush (2), to allow seamless switching between two-stroke and four-stroke modes. The braking switch (703) switches between a driving mode and a braking mode. Thus, flexible switching between four-stroke driving, two-stroke driving, four-stroke braking, and two-stroke braking is realized, achieving high power, low fuel consumption, low emissions and efficient staged braking. The system has a simple and compact structure, is reliable and low-cost, and responds rapidly.

Inventors:
LONG, Wuqiang (No.2 Linggong Road, Ganjingzi DistrictDalian, Liaoning 4, 116024, CN)
CUI, Jingchen (No.2 Linggong Road, Ganjingzi DistrictDalian, Liaoning 4, 116024, CN)
TIAN, Hua (No.2 Linggong Road, Ganjingzi DistrictDalian, Liaoning 4, 116024, CN)
WANG, Yang (No.2 Linggong Road, Ganjingzi DistrictDalian, Liaoning 4, 116024, CN)
Application Number:
CN2018/086443
Publication Date:
December 13, 2018
Filing Date:
May 11, 2018
Export Citation:
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Assignee:
DALIAN UNIVERSITY OF TECHNOLOGY (No.2 Linggong Road, Ganjingzi DistrictDalian, Liaoning 2, 116012, CN)
International Classes:
F01L13/06; F02B69/06
Domestic Patent References:
WO1999032773A11999-07-01
Foreign References:
CN107060942A2017-08-18
CN102261283A2011-11-30
DE102007002802A12008-07-24
CN106460575A2017-02-22
CN105275528A2016-01-27
Attorney, Agent or Firm:
DALIAN XINGHAI PATENT LAW OFFICE COMPANY LIMITED (HUA Xiangyang, No.701 Chunhui Plaza, No.24 Tangshan Street, Xigang Distric, Dalian Liaoning 2, 116012, CN)
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