Title:
ロスト・モーション機関系におけるラッシ調整
Document Type and Number:
Japanese Patent JP7004817
Kind Code:
B2
Abstract:
Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HLA jacking in lost motion cam environments and in valve bridge environments. In one implementation, a rocker arm may transmit motion from a lost motion cam having main event and auxiliary event lobes. Main event motion is transmitted to two engine valves through the rocker arm, a lash adjuster, lash adjuster loading component and valve bridge, which define part of a first load path. Braking motion is transmitted to one of the engine valves through an inboard valve actuator and bridge pin, which define part of a second load path. The HLA is thus disposed in a separate load path from the braking valve load and the lash adjuster loading component keeps the lash adjuster under a constant compressive force to prevent jacking.
Inventors:
Ferreira, David M.
Roberts, Gabriel S.
Baltic Lucky, Justin, Dee.
Roberts, Gabriel S.
Baltic Lucky, Justin, Dee.
Application Number:
JP2020525996A
Publication Date:
January 21, 2022
Filing Date:
November 10, 2018
Export Citation:
Assignee:
Jacobs Vehicle Systems, Incorporated
International Classes:
F01L1/18; F01L13/00; F01L1/245; F02D13/02; F02D13/04
Domestic Patent References:
| JP2014515456A | ||||
| JP2017521592A |
Foreign References:
| WO2016174493A1 |
Attorney, Agent or Firm:
Asamura patent office