Abstract: A two-stage turbocharger system for an internal combustion engine is disclosed. The turbocharger system includes a high pressure turbine coupled to an exhaust manifold of the internal combustion engine, and a low pressure turbine having an inlet coupled to the high pressure turbine and an outlet coupled to an exhaust system of the engine. The turbocharger further includes a low pressure compressor having an inlet coupled to environment and an outlet coupled to a high pressure compressor. The high pressure compressor is coupled to an intake manifold of the internal combustion engine. The high pressure turbine is provided with a high pressure by-pass line having a high pressure controlled by-pass valve. The low pressure turbine is provided with a low pressure by-pass line having a low pressure controlled by-pass valve. A controlled valve is provided between the high pressure turbine and the low pressure turbine.

Abstract: An exhaust gas recirculation cooler for an internal combustion engine is provided. The exhaust gas recirculation cooler includes an external casing with an inlet and an outlet for an exhaust gas flow. A first tube bundle and a second tube bundle, each with an inlet and an outlet for a coolant, are located inside the external casing so that the exhaust gas flow flows through the first tube bundle and the second tube bundle in series. A bypass passage conveys the exhaust gas flow from downstream the first tube bundle to the outlet of the external casing bypassing the second tube bundle. The bypass passage is located inside the external casing between the first tube bundle and the second tube bundle.

Abstract: A method is provided for controlling an internal combustion engine. The engine includes, but is not limited to a low pressure EGR cooler by-pass circuit, and a control valve. The method controls the opening of the EGR cooler by-pass circuit with the control valve, if enabling conditions are met.

Abstract: A turbine housing for a high-pressure turbo-charger of a turbo-charger engine system for an internal combustion engine is provided that includes, but is not limited to a low-pressure charger opening for taking up a low-pressure turbo-charger and a high-pressure charger opening for taking up a high-pressure turbo-charger. A high-pressure exhaust opening is attached to a corresponding flange at an exhaust manifold of the engine and there is a short-cut exhaust opening with a high-pressure turbine by-pass valve area attached to a corresponding flange at the exhaust manifold. An external connection opening is attached to a muffler, a waste gate valve area being provided in the close vicinity of the external connection opening.

Abstract: A cylinder head is provided for an internal combustion engine, defining a plurality of exhaust ports and an exhaust outlet and an exhaust manifold internally defined by the cylinder head. The exhaust manifold includes, but is not limited to, a collector volume in communication with the exhaust ports, through a plurality of exhaust runners, and with the exhaust outlet. A turbocharger housing is defined by the cylinder head and includes, but is not limited to a turbine volume internally defined by the cylinder head in fluid communication with the exhaust outlet of the exhaust manifold.

Abstract: An exhaust gas recirculation cooler for an internal combustion engine is provided. The exhaust gas recirculation cooler includes an external casing with an inlet and an outlet for an exhaust gas flow. A first tube bundle and a second tube bundle, each with an inlet and an outlet for a coolant, are located inside the external casing so that the exhaust gas flow flows through the first tube bundle and the second tube bundle in series. A bypass passage conveys the exhaust gas flow from downstream the first tube bundle to the outlet of the external casing bypassing the second tube bundle. The bypass passage is located inside the external casing between the first tube bundle and the second tube bundle.

Abstract: Arrangement of a two stage turbocharger system for an internal combustion engine including an intake manifold and an exhaust manifold, including a low-pressure turbocharger, a high-pressure turbocharger and a bypass duct in flow communication with an outlet of the low-pressure compressor, an inlet of the high-pressure compressor, an outlet of the high-pressure compressor and an inlet of the intake manifold. The bypass duct includes a first bypass valve for opening and closing the bypass duct. The first bypass valve and the high-pressure compressor are accommodated within a common housing.

Abstract: A turbine housing for a high-pressure turbo-charger of a turbo-charger engine system for an internal combustion engine is provided that includes, but is not limited to a low-pressure charger opening for taking up a low-pressure turbo-charger and a high-pressure charger opening for taking up a high-pressure turbo-charger. A high-pressure exhaust opening is attached to a corresponding flange at an exhaust manifold of the engine and there is a short-cut exhaust opening with a high-pressure turbine by-pass valve area attached to a corresponding flange at the exhaust manifold. An external connection opening is attached to a muffler, a waste gate valve area being provided in the close vicinity of the external connection opening.

Abstract: Arrangement of a two stage turbocharger system for an internal combustion engine comprising an intake manifold and an exhaust manifold, comprising a low-pressure turbocharger, a high-pressure turbocharger and a bypass duct in flow communication with an outlet of the low-pressure compressor, an inlet of the high-pressure compressor, an outlet of the high-pressure compressor and an inlet of the intake manifold. The bypass duct comprises a first bypass valve for opening and closing the bypass duct. The first bypass valve and the high-pressure compressor are accommodated within a common housing.

Abstract: The invention relates to a reciprocating engine in a motor vehicle, comprising a coupling arrangement for transmission of a torque, from a crank shaft end, to a crank shaft flange supported in a cylinder block, the crank shaft end being movable in the radial direction with respect to the crank shaft flange, characterised in that the crank shaft end and the crank shaft flange together form an axially extended cavity adapted to contain the coupling arrangement.

Abstract: The invention relates to a reciprocating engine in a motor vehicle, comprising a coupling arrangement for transmission of a torque, from a crank shaft end, to a crank shaft flange supported in a cylinder block, the crank shaft end being movable in the radial direction with respect to the crank shaft flange, characterised in that the crank shaft end and the crank shaft flange together form an axially extended cavity adapted to contain the coupling arrangement.

Abstract: Internal combustion engine with variable compression, comprising a crankshaft-bearing crankcase part and a cylinder-receiving part arranged tiltably thereon by means of a tilt axle bearing on one side of the engine and a tilt mechanism on the other, opposite side of the engine. The cylinder-receiving part supports a cylinder head which is securely connected thereto, preferably with camshafts mounted therein. There are prestressing members arranged between the crankcase part and the cylinder-receiving part which force these engine parts apart and work to counteract the occurrence of bearing play in the tilt axle bearing and in the tilt mechanism when compression-modifying tilting movement between the cylinder-receiving part and the crankcase part occurs during running of the engine.

Abstract: In an internal-combustion engine having an exhaust-gas driven supercharger (8) and having at least two exhaust-gas valves (2, 3) per cylinder, a first exhaust-gas valve (2) in each cylinder is connected to a first exhaust manifold (4), whilst a second exhaust-gas valve (3) in each cylinder is connected to a second exhaust manifold (5). The two exhaust manifolds (4, 5) lead to at least one exhaust-gas turbine in at least one turbo compressor and the first exhaust-gas valves (2) are arranged to be opened at all engine speeds, whilst the second exhaust-gas valves (3) are arranged to be opened only at higher engine speeds. The first exhaust manifold (4) has a smaller flow area than the second exhaust manifold (5). By choosing which exhaust-gas valves are to be used, the size of the flow ducts between engine and exhaust-gas turbine can easily be suited to the size of the exhaust-gas flow which is available at the time.

Abstract: An internal combustion engine (10) is designed with a cylinder section (11) which is pivoted on a crankcase section (13) to provide different compression ratios. The crankcase section (13) is provided with raised lateral walls (21, 22, 24, 25) with upper surfaces (82-85), which lie in the same plane and thereby allow simple assembly of a seal (34) between the cylinder section (11) and crankcase section (13). The lateral walls (21, 22, 24, 25) also enable auxiliary devices for the engine to be easily secured without having to allow for the mobility of the cylinder section (11) relative to the crankcase section (13).