Modularized multifunctional variable valve actuation system for use in 6-cylinder internal combustion engine

Patent metadata

Field	Value
Publication number	US-10060308-B2
Application number	US-201415108582-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Dec 28, 2013
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A modularized multifunctional variable valve actuation system for use in a six-cylinder internal combustion engine. The system includes two fuel supply modules that cooperate with two two-way two-position valves for implementing a continuously variable valve event, and that cooperate with two three-way two-position valves and one two-way two-position valve for implementing a fully variable valve event.

First claim

The invention claimed is:

1. A modularized multifunctional variable valve actuation system for a six-cylinder internal combustion engine, the system comprising:
a valve actuation module ( 1 );
a first oil supply module ( 6 );
a second oil supply module ( 5 );
an oil delivery module ( 7 );
an oil tank ( 8 );
an oil drain valve ( 9 );
oil pipes;
a phase limit module ( 2 );
a mode selection module ( 22 );
a first control module ( 3 ); and
a second control module ( 4 );

wherein
the first oil supply module ( 6 ) and the second oil supply module ( 5 ) are cam-plunger oil supply modules with a camshaft angle having a phase difference of 180° and a rotation period of the cam-plunger oil supply modules is double that of an ignition interval angle of the internal combustion engine, and a crank angle in one cycle is 240°;
the first control module ( 3 ) comprises a first oil supply port ( 3 a ), an oil drain port ( 3 b ), a first drive port ( 3 c ) and an oil delivery port ( 3 d ); the second control module ( 4 ) comprises a first oil supply port ( 4 a ), an oil drain port ( 4 b ), a first drain port ( 4 c ) and an oil delivery port ( 4 d ); the oil delivery module ( 7 ) comprises a second oil delivery port ( 7 a ), an oil delivery port ( 7 b ), a first oil delivery port ( 7 c ) and an oil inlet ( 7 d ); the phase limit module ( 2 ) comprises a second oil supply port ( 2 a ), a first oil supply port ( 2 b ), a second oil drain port ( 2 d ), a first oil drain port ( 2 e ), a second drive port ( 2 f ), a third drive port ( 2 g ), a fourth drive port ( 2 h ), a fifth drive port ( 2 i ) and a sixth drive port ( 2 j ); the oil delivery port of the oil delivery module ( 7 b ), the oil inlet of oil delivery module ( 7 d ), the oil drain port of the first control module ( 3 b ) and the oil drain port of the second control module ( 4 b ) all connect to the oil tank ( 8 );
the second oil delivery port of the oil delivery module ( 7 a ) connects with the oil delivery port of the second control module ( 4 d ), the first oil delivery port of the oil delivery module ( 7 c ) connects with the oil delivery port of the first control module ( 3 d ), and the first oil supply port of the first control module ( 3 a ) connects with the first oil supply module ( 6 ); the first oil supply port of the second control module ( 4 a ) connects with the second oil supply module ( 5 ), the first drive port of the first control module ( 3 c ) connects with the first oil supply port of the phase limit module ( 2 b ), and the first drain port of the second control module ( 4 c ) connects with the second oil supply port of the phase limit module ( 2 a );
for the fully variable valve actuation system of a non-independent oil drain valve, the oil drain valve ( 9 ) is disposed and the phase limit module ( 2 ) comprises the first oil drain port of the phase limit module ( 2 c ); the first oil drain port of the phase limit module ( 2 c ) connects with the oil inlet of oil drain valve ( 9 b ) and the oil outlet of oil drain valve ( 9 a ) connects with the oil tank ( 8 );
without a brake mode, the first oil drain port of the phase limit module ( 2 e ), the second drive port of the phase limit module ( 2 f ), the third drive port of the phase limit module ( 2 g ), the fourth drive port of the phase limit module ( 2 h ), the fifth drive port of the phase limit module ( 2 i ) and the sixth drive port of the phase limit module ( 2 j ) connect to the valve actuation modules of one-cylinder, six-cylinder, two-cylinder, five-cylinder and three-cylinder and four-cylinder respectively; both connect to the second oil drain port of the phase limit module ( 2 d ) and the oil tank ( 8 ) respectively;
with the brake mode, the mode selection module ( 22 ) is disposed; the mode selection module ( 22 ) comprises a first oil supply port of the mode selection module ( 22 a ), a second oil supply port of the mode selection module ( 22 b ), a third oil supply port of the mode selection module ( 22 c ), a fourth oil supply port of the mode selection module ( 22 d ), a fifth oil supply port of the mode selection module ( 22 e ) and a sixth oil supply port of the mode selection module ( 22 f ), which are respectively connected to the first oil drain port of the phase limit module ( 2 e ), the second drive port of the phase limit module ( 2 f ), the third drive port of the phase limit module ( 2 g ), the fourth drive port of the phase limit module ( 2 h ), the fifth drive port of the phase limit module ( 2 i ) and the sixth drive port of the phase limit module ( 2 j ) respectively; and
the mode selection module ( 22 ) further comprises a first drive port of the mode selection module ( 22 g ), a second drive port of the mode selection module ( 22 h ), a third drive port of the mode selection module ( 22 i ), a fourth drive port of the mode selection module ( 22 j ), a fifth drive port of the mode selection module ( 22 k ) and a sixth drive port of the mode selection module ( 22 m ), which are respectively connected to valve actuation modules of one-cylinder, six-cylinder, two-cylinder, five-cylinder and three-cylinder; the mode selection module ( 22 ) also comprises an oil control inlet of the mode selection module ( 22 r ) and an oil control outlet of the mode selection module ( 22 s ), and both respectively connect to the second oil drain port of the phase limit module ( 2 d ) and the oil tank ( 8 ); for the valve actuation system of an internal combustion engine with the cylinder number as an integral multiple of 6, every 6 cylinders are classified into a group at the crank angle of 120° according to the ignition sequence and each group is equipped with a set of the variable valve actuation system.

2. The system of claim 1 , wherein
for the fully variable valve actuation system of the continuously variable or independent oil drain valve on the valve side, the first control module ( 3 ) further comprises a fifth drive port of the first control module ( 3 k ), a sixth drive port of the first control module ( 3 m ) and a seventh drive port of the first control module ( 3 n ); the fifth drive port of the first control module ( 3 k ) is connected to the oil path between the first oil drain port of the phase limit module ( 2 e ) and the first oil supply port of the mode selection module ( 22 a ) or the oil path between the first drive port of the mode selection module ( 22 g ) and the valve actuation module of one-cylinder; the sixth drive port of the first control module ( 3 m ) is connected to the oil path between the third drive port of the phase limit module ( 2 g ) and the third oil supply port of the mode selection module ( 22 c ) or the oil path between the third drive port of the mode selection module ( 22 i ) and the valve actuation module of two-cylinder; the seventh drive port of the first control module ( 3 n ) is connected to the oil path between the fifth drive port of the phase limit module ( 2 i ) and the fifth oil supply port of the mode selection module ( 22 e ) or the oil path between the fifth drive port of the mode selection module ( 22 k ) and the valve actuation module of three-cylinder; and
the second control module ( 4 ) further comprises a fifth drive port of the second control module ( 4 k ), the sixth drive port of the second control module ( 4 m ) and the seventh drive port of the second control module ( 4 n ); the fifth drive port of the second control module ( 4 k ) is connected to the oil path between the second drive port of the phase limit module ( 2 f ) and the second oil supply port of the mode selection module ( 22 b ) or the oil path between the second drive port of the mode selection module ( 22 h ) and the valve actuation module of s

Assignees

• Univ Dalian Tech

Inventors

• Cui Jingchen
• Long Wuqiang
• Tian Jiangping
• Tian Hua
• Yang Tianhao
• Wang Danting

Classifications

• F01L2001/34426

  Oil control valves · CPC title

• F02B2075/1824

  six · CPC title

• F02B75/18

  Multi-cylinder engines (scavenging aspects F02B25/00) · CPC title

• F01L13/065 Primary

  Compression release engine retarders of the "Jacobs Manufacturing" type · CPC title

• F01L9/025

  Mechanical Engineering · mapped topic