摘要:
An engine has a cylinder block with a deck face and at least one cylinder liner with a cylinder axis. The block has a first fluid jacket about the liner, a second fluid jacket about the liner, and a third fluid jacket about the liner. The first, second, and third fluid jackets are fluidly independent from one another and spaced apart from one another along the cylinder axis. A method for forming the engine includes using an insert to provide each of the fluid jackets. The insert has a lost core material surrounded by a metal shell.
摘要:
The present invention relates to a casting product and a method of manufacturing the casting product. The manufacturing method of the casting product includes: manufacturing a salt core including a heterogeneous material part; manufacturing the casting product by inserting the salt core including the heterogeneous material part into a casting mold; injecting a molten metal into the casting mold; and removing the salt core from the casting product.
摘要:
A vehicle water jacket assembly includes a first water jacket portion establishing a plurality of first fluid channels that are situated to facilitate fluid movement along at least a first plane. A second water jacket portion is situated near the first water jacket portion. The second water jacket portion establishes a plurality of second fluid channels that are situated to facilitate fluid movement along at least a second plane that is generally parallel to the first plane. At least one connector portion establishes a plurality of connector fluid channels that are situated to facilitate fluid movement between at least one of the first fluid channels and at least one of the second fluid channels along a direction that is transverse to the first and second planes.
摘要:
An exemplary cooling system includes, among other things, a first pump to supply coolant to a cylinder head or cylinder block of an engine, a second pump to supply coolant to a cylinder block or cylinder head of the engine. A control unit governs the first pump and second pump. Fluid return channels recirculate coolant to the pumps. The first and second pumps are arranged to backflow coolant through the engine.
摘要:
The present invention relates to a casting product and a method of manufacturing the casting product. The manufacturing method of the casting product includes: manufacturing a salt core including a heterogeneous material part; manufacturing the casting product by inserting the salt core including the heterogeneous material part into a casting mold; injecting a molten metal into the casting mold; and removing the salt core from the casting product.
摘要:
A system according to the principles of the present disclosure includes a pump control module and a pump diagnostic module. The pump control module commands a water pump to switch between on and off, wherein the water pump circulates coolant through an engine when the water pump switches on as commanded. The pump diagnostic module diagnoses a fault in the water pump based on a change in a crankshaft speed of the engine when the water pump is commanded to switch between on and off.
摘要:
A coolant pump (1) of an internal combustion engine, having a pump casing (2), in which a pump shaft (3) is rotatably supported by a water pump bearing assembly (4) and an impeller (6) connected in a rotationally fixed manner to the pump shaft (3) is associated with an intake space (7). During a rotation of the impeller (6) together with associated blades (8), a coolant as a working medium is pumped from the intake space (7), via a coolant outlet of the coolant pump (1), into a cooling system of the internal combustion engine. A dirt trap is associated as a functional module (12a) with the impeller (6) on a side facing away from the intake space (7), wherein the working medium flows into the functional module (12a) from the intake space via at least one opening (13) introduced into the impeller and emerges via a flow outlet (15a).
摘要:
A thermostat includes an annular flange extending in radial directions and surrounded by a cylindrical large-diameter portion of a housing inner surface, and a frame extending in axial directions from the flange. The thermostat further includes a sealing member that hermetically seals the gap between the flange and the inner surface. The sealing member includes an annular outer peripheral portion sandwiched in the axial directions by the inner surface and a thermostat cover inside the large-diameter portion, and a plurality of protruding portions extending outward in the radial directions from the outer peripheral portion toward the large-diameter portion. The thermostat is disposed inside a housing that defines a portion of a cooling water passage, and opens and closes the cooling water passage according to the temperature of cooling water inside the cooling water passage.
摘要:
A vehicle control device includes an engine, a starter for starting the engine, a transmission for transmitting power of the engine to a driving wheel, an oil pump for supplying hydraulic pressure to the transmission according to the power of the engine, an accumulator for accumulating the hydraulic pressure ejected from the oil pump, and an electromagnetic on-off valve for controlling the hydraulic pressure accumulated in the accumulator. When the engine is restarted after the engine has stopped, an ECU of the vehicle control device opens the electromagnetic on-off valve at the time a line pressure has become equal to or higher than a predetermined hydraulic pressure after the start of the starter, and supplies the hydraulic pressure accumulated in the accumulator to respective portions of the transmission.
摘要:
A liquid-cooled internal combustion engine, including at least one cylinder block which has a cooling jacket and multiple cylinders. The cooling jacket has a base facing toward a crank chamber and a top facing toward a cylinder head sealing plane. The base has an undulating profile in which a first distance, as measured in the direction of the cylinder axis, between the base of the cooling jacket and the top in the region of at least one first engine transverse plane which encompasses the cylinder axis is greater than a second distance in the region of at least one second engine transverse plane between two adjacent cylinders. In order to reduce cylinder deformation, the cooling jacket has three different heights, in which a third distance between the base of the cooling jacket and the top is smaller in at least one face-end region of the cooling jacket.