The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2013
Filed:
Jul. 27, 2010
Hosung Cho, Hwaseong-si, KR;
Jin Gyu Yang, Hwaseong-si, KR;
Myung Rae Cho, Incheon, KR;
Hong Wook Lee, Yongin, KR;
Seong Hyuk Kang, Hwaseong, KR;
Taewon Park, Hwaseong-Si, KR;
Jinwoo Yang, Hwaseong-si, KR;
Wootae Kim, Suwon, KR;
Myungsik Choi, Seoul, KR;
Eui Chul Choi, Seoul, KR;
Sung Han Kang, Hwaseong-si, KR;
Won Gyu Kim, Seoul, KR;
Hosung Cho, Hwaseong-si, KR;
Jin Gyu Yang, Hwaseong-si, KR;
Myung Rae Cho, Incheon, KR;
Hong Wook Lee, Yongin, KR;
Seong Hyuk Kang, Hwaseong, KR;
Taewon Park, Hwaseong-Si, KR;
Jinwoo Yang, Hwaseong-si, KR;
Wootae Kim, Suwon, KR;
Myungsik Choi, Seoul, KR;
Eui Chul Choi, Seoul, KR;
Sung Han Kang, Hwaseong-si, KR;
Won Gyu Kim, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
A variable valve lift apparatus may include a variable valve lift housing, a master piston which is slidably disposed in the variable valve lift housing and contacts a cam, a slave piston which is slidably disposed in the variable valve lift housing, defines an oil chamber with the master piston therebetween, and opens a valve connected to the slave piston according to reciprocative motion of the master piston, and a lift control portion which supplies oil to the oil chamber or exhausts oil in the oil chamber selectively to control a relative distance between the master piston and the slave piston.