US 12,188,420 B2
Combined engine braking and positive power engine lost motion valve actuation system
Kevin P. Groth, Southington, CT (US); Brian L. Ruggiero, East Granby, CT (US); Shengqiang Huang, West Simsbury, CT (US); Neil E. Fuchs, New Hartford, CT (US); John J. Lester, West Hartford, CT (US); Steven N. Ernest, Windsor, CT (US); and Joseph Paturzo, Avon, CT (US)
Assigned to Jacobs Vehicle Systems, Inc., Bloomfield, CT (US)
Filed by Jacobs Vehicle Systems, Inc., Bloomfield, CT (US)
Filed on Nov. 20, 2019, as Appl. No. 16/689,937.
Application 16/689,937 is a division of application No. 14/274,899, filed on May 12, 2014.
Application 14/274,899 is a continuation of application No. 13/192,330, filed on Jul. 27, 2011, granted, now 8,936,006, issued on Jan. 20, 2015.
Claims priority of provisional application 61/368,248, filed on Jul. 27, 2010.
Prior Publication US 2020/0141335 A1, May 7, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. F01L 1/34 (2006.01); F01L 1/18 (2006.01); F01L 1/26 (2006.01); F01L 13/06 (2006.01); F02D 13/02 (2006.01); F02D 13/04 (2006.01)
CPC F02D 13/04 (2013.01) [F01L 1/18 (2013.01); F01L 1/26 (2013.01); F01L 13/06 (2013.01); F01L 13/065 (2013.01); F02D 13/0203 (2013.01); F02D 13/0273 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A valve bridge for use in an internal combustion engine comprising a plurality of cylinders, the valve bridge comprising:
a valve bridge body configured to extend between two valves for a cylinder of the plurality of cylinders, the valve bridge body having a central opening extending through a thickness of the valve bridge body at a location between the two valves; and
a first lost motion assembly disposed within the central opening and selectively operable to lose all valve actuation motions applied to the first lost motion assembly,
wherein the valve bridge body further comprises a side opening having a sliding pin disposed therein, the side opening and sliding pin configured to align with a first valve of the two valves,
wherein engine braking events are imparted to the first valve of the two valves via the sliding pin and a second lost motion assembly that is capable of selective actuation according to different operating conditions of the internal combustion engine.