Internal-combustion engines – Poppet valve operating mechanism – Overhead camshaft
Patent
1984-03-06
1986-10-07
Feinberg, Craig R.
Internal-combustion engines
Poppet valve operating mechanism
Overhead camshaft
123 52MV, 123195A, 123198C, F01L 102, F02F 700
Patent
active
046153080
ABSTRACT:
An improved, compact auxiliary mechanism driving device in a V-type, overhead-camshaft engine in which a driving section for engine auxiliary mechanism is mounted on a camshaft without increasing the overall size of the engine by utilizing a vacant or unused space(s) on the camshafts peculiar to such an overhead-camshaft engine. A pair of first and second cylinder banks are arranged in V-shape and have a first and a second cylinder head, respectively. The cylinders of the first bank are displaced from the cylinders of the second bank in the axial direction of the camshaft. A first camshaft having first valve-operating cams for the first cylinders is provided on the first cylinder head of the first cylinders. A second camshaft having second valve-operating cams for the second cylinders is provided on the second cylinder head of the second cylinders. The first and second camshafts are operatively connected at their one end with the associated end of the crankshaft for synchronized rotation therewith through a transmission mechanism. The first cams on the first camshaft are displaced from the second cams on the second camshaft in a manner such that the former are disposed axially more apart from the transmission mechanism than the latter. The engine auxiliary mechanism is driven by means of the first camshaft and has a drive section mounted on the first camshaft at a location between the transmission mechanism and the one of the first cams on the first camshaft nearest to the transmission mechanism.
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Asanomi Koji
Ishimi Haruyoshi
Bryan James E.
Feinberg Craig R.
Ferguson Jr. Gerald J.
Hoffman Michael P.
Mazda Motor Corporation
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