A first throttle body and a second throttle body include valve rotation devices that independently drive respective throttle valves. The first throttle body and the second throttle body are arranged such that the respective valve rotation devices have states rotated around respective bore central axes to cause respective throttle valve rotation shafts to have angles with respect to straight lines parallel to a crankshaft in an engine top view.

A cylinder block includes a metal body part having a cylinder, and an outer wall part made of fiber reinforced resin, surrounding an outer circumference of the body part. A part of the outer wall part at BDC side in a cylinder axis direction contacts a bottom wall forming part. The outer wall part is comprised of an inner layer surrounding the outer circumference of the body part, and an outer layer surrounding an outer circumference of the inner layer. A density of reinforcing fiber contained in the outer layer is higher than that in the inner layer. A thickness of a part of the inner layer at BDC side in the cylinder axis direction is greater than that of the TDC-side inner layer. A thickness of a part of the outer layer at TDC side in the cylinder axis direction is greater than that of the BDC-side outer layer.

A mounting system configured to mount an air conditioning compressor to an engine. The mounting system adapted to mount a compressor to the engine to facilitate driving the air conditioning compressor with the engine via a pulley system disposed therebetween. A first member structured to couple to at least the engine and the first side of the compressor. A second member structured to couple to at least a second side of the compressor and a tensioner. The tensioner operatively engages the pulley system of the engine. A first layer of spacers intermediate to the first member and the engine. A second layer of spacers intermediate to the first member and the second member. The tensioner includes an interface that couples to a serpentine drive belt of the pulley system intermediate to the engine and the compressor.

A mounting system configured to mount an air conditioning compressor to an engine. The mounting system adapted to mount a compressor to the engine to facilitate driving the air conditioning compressor with the engine via a pulley system disposed therebetween. A first member structured to couple to at least the engine and the first side of the compressor. A second member structured to couple to at least a second side of the compressor and a tensioner. The tensioner operatively engages the pulley system of the engine. A first layer of spacers intermediate to the first member and the engine. A second layer of spacers intermediate to the first member and the second member. The tensioner includes an interface that couples to a serpentine drive belt of the pulley system intermediate to the engine and the compressor.

An alpha type Stirling engine (1) comprises an expansion cylinder (2) and a compression cylinder (3). The Stirling engine further comprises a regenerator (4), a cooler (5), a heater (6), and a gas channel (7) which provides the expansion cylinder (2) in fluid communication with the compression cylinder (3). At least one of the expansion cylinder (2) and the compression cylinder (3) has a twin cylinder (2, 3) which functions as an additional expansion cylinder (2) or an additional compression cylinder (3), respectively, wherein the one of the expansion cylinder (2) and the compression cylinder (3) that has a twin cylinder (2, 3), is together with said twin cylinder (2 3) connected to a first portion (7a) of the gas channel (7), from which first portion (7a) the gas channel (7) extends via the regenerator (4) to a second portion (7b) to which the other one of the expansion cylinder (2) and the compression cylinder (3) is connected.

A structural frame is provided. The structural frame includes a bottom surface, first and second cylinder block sidewall engaging surfaces, the first and second cylinder block sidewall engaging surfaces positioned above the bottom surface at a height that is above a centerline of a crankshaft support included in a cylinder block when the structural frame is coupled to the cylinder block.

A structural frame is provided. The structural frame includes a bottom surface, first and second cylinder block sidewall engaging surfaces, the first and second cylinder block sidewall engaging surfaces positioned above the bottom surface at a height that is above a centerline of a crankshaft support included in a cylinder block when the structural frame is coupled to the cylinder block.

An arrangement of exchangers for marinization of a marine engine, including an engine block with in-line cylinders or cylinders in a V, cooled by a cooling fluid, at least one turbocompressor with a hot chamber connected to an outlet and a cold chamber connected to the cylinders of the engine block, a reverser including a housing and containing oil, wherein the arrangement includes: a radiator hose for supplying cooling water, a turbocompressor exchanger, an engine exchanger, a reverser exchanger, a radiator hose for discharging cooling water toward an outlet of combustion gases, downstream from the hot chamber of the at least one turbocompressor,
with these three exchangers being placed in this order and inserted in the circulation direction of the water between the radiator hose for supplying the cooling water and the radiator hose for discharging this same cooling water.

An arrangement of exchangers for marinization of a marine engine, including an engine block with in-line cylinders or cylinders in a V, cooled by a cooling fluid, at least one turbocompressor with a hot chamber connected to an outlet and a cold chamber connected to the cylinders of the engine block, a reverser including a housing and containing oil, wherein the arrangement includes: a radiator hose for supplying cooling water, a turbocompressor exchanger, an engine exchanger, a reverser exchanger, a radiator hose for discharging cooling water toward an outlet of combustion gases, downstream from the hot chamber of the at least one turbocompressor,
with these three exchangers being placed in this order and inserted in the circulation direction of the water between the radiator hose for supplying the cooling water and the radiator hose for discharging this same cooling water.

A V-type internal combustion engine has a first cylinder bank with four first cylinders and a second cylinder bank with four second cylinders. A first fresh gas line is provided for the first cylinder bank and a second fresh gas line for the second cylinder bank. An exhaust gas system has a first turbocharger, which has a first compressor and a first turbine having two first exhaust gas inlets, and a second turbocharger, which has a second compressor and a second turbine having two second exhaust gas inlets. The first fresh gas line is connectable to the first four cylinders downstream of the first compressor in the flow direction of a fresh gas so as to conduct fresh gas, and the second fresh gas line is connectable to the second four cylinders downstream of the second compressor in the flow direction of the fresh gas so as to conduct fresh gas. A first cylinder and a second cylinder can be connected via the exhaust gas system to the first first exhaust gas inlet, a first cylinder and a second cylinder can be connected via the exhaust system to the second first exhaust gas inlet, a first cylinder and a second cylinder can be connected via the exhaust gas system to the first second exhaust gas inlet, and a first cylinder and a second cylinder can be connected via the exhaust gas system to the second second exhaust gas inlet. A single third compressor is arranged in the first fresh gas line between the first compressor and the first four cylinders.