Title:
SYSTEMS AND METHODS FOR HYDRAULIC LASH ADJUSTMENT IN AN INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2014/015292
Kind Code:
A3
Abstract:
Systems and methods for actuating engine valves for positive power and engine braking operation are disclosed. The systems may include a self-lashing hydraulic piston slidably disposed in a fixed or rocker arm housing. The hydraulic piston may have an internal cavity in which a motion absorbing piston is disposed. A hydraulic fluid source may communicate with the hydraulic piston bore. A check valve which may be incorporated in a control valve may controls hydraulic fluid supply from the hydraulic fluid source to the hydraulic piston to provide self-lashing operation of the valve actuation system.
Inventors:
ROBERTS GABRIEL SCOTT (US)
AUDIBERT KEVIN (US)
BALTRUCKI JUSTIN DAMIEN (US)
AUDIBERT KEVIN (US)
BALTRUCKI JUSTIN DAMIEN (US)
Application Number:
PCT/US2013/051361
Publication Date:
March 13, 2014
Filing Date:
July 19, 2013
Export Citation:
Assignee:
JACOBS VEHICLE SYSTEMS INC (US)
International Classes:
F01L1/20
Foreign References:
| US20020174654A1 | 2002-11-28 | |||
| US20090184273A1 | 2009-07-23 | |||
| US5680841A | 1997-10-28 |
Attorney, Agent or Firm:
YOHANNAN, David R. (3050 K Street N.W.,Suite 40, Washington DC, US)
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