Invention Grant
- Patent Title: Electro-hydraulic variable valve lift system
- Patent Title (中): 电动液压可变气门升程系统
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Application No.: US13528616Application Date: 2012-06-20
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Publication No.: US08607751B2Publication Date: 2013-12-17
- Inventor: Jei Choon Yang , Byong Young Choi , Young Hong Kwak , Wonjun Lee , Jin Kook Kong , Soo Hyung Woo
- Applicant: Jei Choon Yang , Byong Young Choi , Young Hong Kwak , Wonjun Lee , Jin Kook Kong , Soo Hyung Woo
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company
- Current Assignee: Hyundai Motor Company
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2011-0130514 20111207
- Main IPC: F01L1/34
- IPC: F01L1/34

Abstract:
An electro-hydro valve lift system may include a drive cam, a pump piston, a first and a second EHV apparatus, a first oil control valve, a first oil control hydraulic line fluid-communicating the main chamber with the first oil control valve, a second oil control hydraulic line fluid-communicating the first oil control valve with the first EHV apparatus, a third oil control hydraulic line fluid-communicating the main chamber with the second EHV apparatus, a fourth oil control hydraulic line selectively fluid-communicated with the second oil control hydraulic line according to the first oil control valve, an accumulator fluid-communicated with the fourth oil control hydraulic line, and a second oil control valve disposed on the fourth oil control hydraulic line, wherein the fourth oil control hydraulic line is fluid-communicated with the third oil control hydraulic line according to the second oil control valve.
Public/Granted literature
- US20130146002A1 ELECTRO-HYDRAULIC VARIABLE VALVE LIFT SYSTEM Public/Granted day:2013-06-13
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