In one embodiment, a method for cooling an engine damper, including converting a gas to a liquid, and cooling an engine damper by passing the liquid through a tube portion located between fan air flow and the engine damper.

An electrical generation system for a vehicle includes a vehicle having a generator for producing electric current. The vehicle has a cavity having a fan and a radiator. The radiator is in fluid communication with the generator to allow a temperature of the generator to be controlled. An air inlet passage extends through a wall of the vehicle and is configured to direct air from outside the vehicle toward an inlet side of the radiator to provide increased static pressure of the air to the inlet side of the radiator compared to an ambient pressure of the air when the vehicle is in motion.

The technology disclosed herein relates to a grounds maintenance vehicle. The grounds maintenance vehicle has an engine and an engine shroud defining a cooling volume around the engine. The shroud defines a shroud intake. An engine oil conduit extends from the engine and a heat exchanger is coupled to the engine oil conduit.

In a generator including an engine, a rotating electric machine, and a cooling fan that rotates integrally with a rotor of the rotating electric machine, the cooling fan includes a plurality of fans disposed at an interval in an axial direction of the fan, and a cylindrical body that extends in the axial direction of the cooling fan with a cylindrical cross section in an inner peripheral space of an upstream fan and is disposed more on the upstream side than a downstream fan.

The invention relates to a self-propelled ground milling machine, in particular a road cold milling machine, stabilizer or recycler, comprising a milling device for milling the ground at a milling depth, a machine frame supported by front and rear travel units, an internal combustion engine arranged in an engine compartment, a hydraulic system with at least two hydraulic pumps, a pump transfer gear and a hydraulic tank, and an operator platform.

The invention relates to a module, comprising:—at least one, preferably only one, tangential turbomachine (28-1; 28-2) comprising a bladed wheel (32-1; 32-2) and a motor (33-1; 33-2) for rotationally driving the bladed wheel (32-1; 32-2),—a frame (30-1; 30-2) forming an opening (60-1; 60-2), preferably only one opening,—a shut-off means (62-1; 62-2) designed to selectively shut off the opening (60-1; 60-2), the shut-off means (62-1; 62-2) having at least two regions which, in contact in a position of the shut-off means (62-1; 62-2) in which the opening (60-1; 60-2) is left free, are at a distance apart in a position in which they shut off the opening (60-1; 60-2).

The invention relates to a cooling module (10) of a vehicle air conditioning system, in particular for trucks, having a fan (12) which has an air inlet (14) and an air outlet (16) and generates an air flow in an air flow direction (18) from the air inlet (14) to the air outlet (16), a condenser (20) which can be flowed through bidirectionally for liquefying a refrigerant of the vehicle air conditioning system, which condenser (20) has an air flow cross section (A.sub.1) and is arranged so as to be adjacent to the air outlet (16) of the fan (12), wherein the air flow cross section (A1) has a first part cross section (22) and a second part cross section (24) which is different from the first part cross section (22), wherein the air outlet (16) of the fan (12) is assigned exclusively to the first part cross section (22) and loads the latter in the air flow direction (18) with the entire air flow of the fan (12), and wherein the second part cross section (24) can be flowed through during operation of the fan (12) selectively in the air flow direction (18) of the fan (12) and counter to the air flow direction (18) of the fan (12). Furthermore, the invention also relates to an assembly (28) for cooling a motor vehicle engine (30) with a cooling module (10) of this type.

A self-propelled construction device, in particular a soil compactor, includes a turbocharged diesel engine with a first radiator arrangement for cooling charge air and a second radiator arrangement for cooling a cooling liquid and/or hydraulic oil, with a first radiator fan being allocated to the first radiator arrangement and a second radiator fan being allocated to the second radiator arrangement and the first radiator fan and the second radiator fan being able to be operated essentially independently from each other.

Two cooling fans acting on different heat exchangers may be driven via parallel circuits from a variable displacement hydraulic pump. At least one of the circuits includes a two position valve operable by a control system to vary the flow resistance of the circuit to share the flow between the two fan motors responsive to the relative heat load on the heat exchangers. The pump displacement is controlled to provide a constant hydraulic output pressure irrespective of the operational state of the or each valve assembly.

One embodiment of the invention relates to an internal combustion engine including an engine block having a first cylinder and a second cylinder, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an air filter assembly, a first electric fan coupled to a first duct, and a second electric fan coupled to a second duct. The first duct is configured to direct cooling air directly over the first cylinder. The second duct is configured to direct cooling air directly over the second cylinder. The first cylinder is at least partially within the first duct. The second cylinder is at least partially within the second duct.