Title:
PRIMARY AND OFFSET ACTUATOR ROCKER ARMS FOR ENGINE VALVE ACTUATION
Document Type and Number:
WIPO Patent Application WO/2005/107418
Kind Code:
A2
Abstract:
Systems and methods for actuating engine valves are disclosed. The systems may
include primary and auxiliary rocker arms disposed adjacent to each other on
a rocker arm shaft. The primary rocker arm may actuate an engine valve for primary
valve actuation motions, such as main exhaust events, in response to an input
from a first valve train element, such as a cam. The auxiliary rocker arm may receive
one or more auxiliary valve actuation motions, such as for engine braking, exhaust
gas recirculation, and/or brake gas recirculation events, from a second valve
train element. A hydraulic actuator piston may be disposed between the auxiliary
rocker arm and the primary rocker arm. The actuator piston may be selectively
locked into an extended position between the primary and auxiliary rocker arms
so as to selectively transfer the one or more auxiliary valve actuation motions
from the auxiliary rocker arm to the primary rocker arm.
Inventors:
JANAK ROBB (US)
MEISTRICK ZDENEK (US)
MEISTRICK ZDENEK (US)
Application Number:
PCT/US2005/015675
Publication Date:
November 17, 2005
Filing Date:
May 06, 2005
Export Citation:
Assignee:
JACOBS VEHICLE SYSTEMS INC (US)
JANAK ROBB (US)
MEISTRICK ZDENEK (US)
JANAK ROBB (US)
MEISTRICK ZDENEK (US)
International Classes:
F01L1/18; F01L13/06; F01L9/10
Foreign References:
| DE4025569C1 | 1991-07-18 |
Other References:
See references of EP 1761686A4
Attorney, Agent or Firm:
YOHANNAN, David, R. (d.b.a. Kelley Drye Collier Shannon 3050 K Street, NW, Suite 40, Washington DC, US)
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