Electro-hydraulic assembly for controlling engine valve deactivation
AssigneeEaton Corporation
InventorsNathan W. Kryglowski, Kenneth J. Parker, Charles Chang, Tae-Kyung Kim, Kelly M. Newby
Life of this patent
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Abstract
A Lifter Oil Manifold Assembly or LOMA has a metal deckplate with a non-metallic valve mount/stiffener having elastomeric seals on the surface contacting the deckplate. The electrically operated valves for controlling flow to individual valve lifters are mounted on bosses formed on the valve mount/stiffener. A bracket retains the valves on the valve mount/stiffener and the valve mount/stiffener on the deckplate when assembled on the engine by through bolts.
Claims16
A manifold assembly for use in an engine combustion chamber valve deactivation system comprising:
- (a) a deckplate having a supply channel and a plurality of control channels formed on a common surface thereof;
- (b) valve mount/stiffener formed of non-metallic material with a plurality of valving recesses formed therein with each recess having an inlet and outlet port communicating with a common surface of said valve mount/stiffener, said common surface of said valve mount/stiffener disposed and sealed on said common surface of said deckplate with each of said outlet ports sealed about one of said control channel;
- (c) an electrically operated valve disposed in each of said valving recesses;
- (d) a retaining bracket received directly on said valve mount/stiffener and operable for retaining said valves in said valving recesses and said valve mount/stiffener on said deckplate;
- and,
- (e) fastening means operable for securing said bracket and valve mount/stiffener to said deckplate.
A method of making a manifold assembly for use in engine combustion chamber valve de-activation comprising:
- (a) providing a deckplate and forming a supply channel and a plurality of outlets on a common surface;
- (b) forming a valve mount/stiffener of non-metallic material with a plurality of valving recesses each having an inlet and outlet communicating with a common surface of the valve mount/stiffener;
- (c) disposing said common surface of said valve mount/stiffener on said common surface of said deckplate;
- (d) disposing an electrically operated valve in each of the valving recesses;
- and,
- (e) securing a bracket directly on said valve mount/stiffener and retaining said valves thereon and retaining said valve mount/stiffener to said deckplate.
Dependencies are inferred from the claim text.