Engine
First Claim
Patent Images
1. An engine, comprising:
- a crankcase;
a head having a cooling water discharge port;
a water pump having an input port and a discharge port; and
a water manifold coupled directly to the head and comprising a seal, the seal coupled between the water manifold and the head, and the water manifold having a first coupling configured to receive cooled engine cooling water, a second coupling configured to receive used engine cooling water, and a third coupling coupled to the water pump.
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Accused Products
Abstract
An engine is disclosed having a water cooling system allowing efficient cooling of the exhaust valves to prevent temperature gradients from building in the engine. Water is therefore pumped through the engine though first and second water cooling cores which discharge through the head. A water manifold is positioned over the discharge opening and includes couplings for the radiator supply, radiator return, water pump supply, oil cooler supply and oil cooler return. The engine has separate chambers to isolate the pistons and cylinders, and reed valves cover the chambers and allow the blow-by gases and oil to enter the oil pan during the power stroke of the engine cycle.
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Citations
28 Claims
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1. An engine, comprising:
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a crankcase; a head having a cooling water discharge port; a water pump having an input port and a discharge port; and a water manifold coupled directly to the head and comprising a seal, the seal coupled between the water manifold and the head, and the water manifold having a first coupling configured to receive cooled engine cooling water, a second coupling configured to receive used engine cooling water, and a third coupling coupled to the water pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An engine, comprising:
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a crankcase; a crankshaft supported by the crankcase; a cover which covers a portion of the crankcase; an idler shaft supported between the cover and a portion of the crankcase; and a water pump coupled directly to the crankcase and drivingly coupled to the idler shaft, the water pump having a drive shaft interengagingly coupled to the idler shaft. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. An engine, comprising:
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a crankcase having at least two cylinders; a crankshaft supported by the crankcase; at least two pistons coupled to the crankshaft and each reciprocating within one of the cylinders; a head positioned over the cylinders; at least two camshafts supported by the head, each camshaft extending along a longitudinal axis; at least four valves supported by the head and having a pair of two valves positioned over each cylinder and operatively connected to the camshafts, each pair of valves extending at a transverse axis relative to the longitudinal axis of the camshafts, and each pair of valves comprising an exhaust valve and an intake valve; a water pump for cooling the engine head; a first water cooling core extending through the head and extending longitudinally through the head on a first longitudinal side of the exhaust valves; a first set of apertures extending upward through the head and communicating with the first water cooling core, the first set of apertures being positioned proximate each other and proximate a center of the head; a second water cooling core extending through the head and extending longitudinally through the head on a second longitudinal side of the exhaust valves; a second set of apertures extending upward through the head and communicating with the second water core; and a water discharge port for discharging the water from the first and second water cooling cores. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification