09-07-2015 дата публикации
Номер: US20150192057A1
Принадлежит:
In a marine conversion of a “Duramax” V8 diesel engine, each bank of cylinders has a jacketed exhaust manifold comprising a solid elongated casting including coolant galleries and a central exhaust duct. Recirculating coolant cools each cylinder then enters the exhaust manifold through separate apertures aligned with openings made by removal of a frost plug. Each manifold coolant aperture has a controlled diameter, ensuring most of the coolant passes along the length of the engine then along the manifold yet enough coolant cools each cylinder. The coolant then traverses and cools a manifold extension and a turbocharger. 1100107106105110102. An internal combustion engine having a front and a rear and adapted or converted for marine use , including a turbocharger driven when in use by exhaust gas pressure for compressing aspired air , the engine being internally cooled by a first internal closed coolant circuit with flow caused by pump and connected through one or more non-mingling heat exchangers to a flow of raw water caused to flow by pump in a second , open circuit; the engine having at least one bank of combustion chambers , each chamber having a corresponding exhaust port brought to a manifold face of an engine head , characterised in that{'b': 101', '213', '214', '206', '215', '216', '217', '218', '203', '202, '(a) one exhaust manifold for each bank of combustion chambers is formed from a solid thermally conductive mass having a thick wall surrounding a duct capable when in use of carrying hot exhaust gases from the exhaust ports ; the wall being sufficiently thick to include a plurality of internal conduits or galleries , , , ; the exhaust manifold having a closed end and an open end ;'}{'b': 101', '101', '101', '101, '(b) coolant apertures E, F, G, H are formed through the manifold face of the engine, each aperture creating an opening into an internal coolant gallery surrounding a corresponding combustion chamber;'}{'b': 206', '214', '101', '101', '101', '101 ...
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