Patent ID: 7631631

Claim:
A cylinder head assembly for a variable displacement internal combustion engine comprising: a cylinder head adapted to contain at least one switchable valvetrain element operable to selectively deactivate at least one intake valve and at least one other switchable valvetrain element operable to selectively deactivate at least one exhaust valve; wherein said cylinder head defines at least one feed passage operable to selectively communicate fluid pressure to said at least one switchable valvetrain element to selectively deactivate said at least one intake valve; wherein said cylinder head defines at least one other feed passage operable to selectively communicate fluid pressure to said at least one other switchable valvetrain element to selectively deactivate said at least one exhaust valve; and an oil communication manifold mounted to said cylinder head and defining at least one communication passage operable to enable communication of fluid pressure between said at least one feed passage and said at least one other feed passage; wherein said oil communication manifold is mounted to said cylinder head by at least one banjo fitting and wherein said at least one banjo fitting is operable to enable communication of fluid pressure between said at least one communication passage and one of said at least one feed passage and said at least one other feed passage.