摘要:
In a turbocharger with an oil thrower 36 arranged between a bearing portion 31 for support of a turbine shaft 5 in a bearing housing 3 and an impeller 6 in front thereof, a seal plate 44 facing a front portion outer periphery of the oil thrower 36 for prevention of oil from leaking from the bearing portion 31 to the impeller 6 and being integral with the bearing housing 3 to be positioned at a back of the impeller 6, an oil-thrower facing part 39 formed in the bearing housing 3 to face a rear portion outer periphery of said oil thrower to provide an oil sump 40, the seal plate 44 is in the form of press-fit plate 47, a diameter of the press-fit plate 47 being smaller than an outer diameter of the impeller 6 and being at least equal to a minimum working bore diameter for machining of an outer periphery 42 of the oil-thrower facing part 39 or machining of oil discharge openings 41 provided in the oil-thrower facing part 39.
摘要:
A rotary machine (1) is provided with: a flange section (16) protruding in the radial direction of a rotating shaft (5) which rotates about an axis (O) and rotating together with the rotating shaft (5); a stationary bush (13) disposed at a distance in the direction of the axis (O) from the flange section (16), surrounding the outer peripheral surface of the rotating shaft (5), and provided in a housing (4) supporting the rotating shaft (5) so as to be immovable in the direction of the axis (O) relative to the rotating shaft (5); and a rotation bush (10) which is disposed between the flange section (16) and the stationary bush (13) so as to be sandwiched therebetween in the direction of the axis (O), covers the outer peripheral surface of the rotating shaft (5), and is rotatable relative to the rotating shaft (5) and the housing (4) while floating in fluid (OI). The rotation bush (10) has, on the surface thereof which faces the direction of the axis (O), a land surface (25) and a tapered surface (26) which is continuous with the land surface (25).
摘要:
A turbocharger assembly can include a housing with a through bore and an axial face disposed in the through bore; a locating plate with a keyed opening attached to the housing; and a journal bearing disposed in the through bore where the journal bearing includes a keyed compressor end and an enlarged outer portion defined between two axial faces by an outer diameter and an axial length where the axial face disposed in the through bore of the housing, the locating plate, and the two axial faces of the journal bearing axially locate the journal bearing in the through bore and where the keyed opening of the locating plate and the keyed compressor end of the journal bearing azimuthally locate the journal bearing in the through bore. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
摘要:
The invention relates to a charging apparatus (20) for a combustion engine (21) comprising an electrically driven compressor (1) which has a compressor housing (2), in which a compressor wheel (3) is arranged, said compressor wheel being mounted on one end (4) of a rotor shaft (5), and which has a compressor housing rear wall (6); and comprising an electric motor (7), the shaft (8) of said electric motor being connected to the rotor shaft (5) which is mounted on the compressor housing (2), and comprising a power electronics circuit (9), wherein the power electronics circuit (9) is arranged between the compressor housing rear wall (6) and the electric motor (7).
摘要:
The present invention provides a supercharger with an electric motor having improved cooling performance for bearings, in the case of employing a grease lubrication system as a lubrication system of the bearings. A supercharger with an electric motor (1a, 1b) includes: a rotary shaft (12); a compressor wheel (10); a compressor housing (2) for housing the compressor wheel; an electric motor (15) including a motor rotor (14) and a motor stator (16), and giving rotation force to the rotary shaft; a motor housing (6a, 6b) for housing the electric motor; a first grease-sealed bearing (20A) for rotatably supporting the rotary shaft; and a bearing housing (4a, 4b) for housing the first grease-sealed bearing, and disposed between the compressor housing and the motor housing. Inside the bearing housing, a cooling passage (18a, 18b) through which a cooling medium flows is provided in a circumferential direction on an outer circumferential side of the first grease-sealed bearing.
摘要:
An assembly can include a compressor backplate; a bearing boss that extends axially from the compressor backplate and that includes an outer surface and male coupling features disposed along the outer surface; and a casing that includes a compressor end, a bearing boss opening at the compressor end, a turbine end, an inner surface located between the compressor end and the turbine end and female coupling features disposed along a portion of the inner surface, the male coupling features and the female coupling features configured to couple the bearing boss to the casing. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
摘要:
A combustion engine (E) includes a supercharger (42) which pressurizes intake air (I) to be supplied to an engine body (EB). A lubrication system for the combustion engine (E) includes a main lubrication passage (144) through which lubricating oil (OL) flows to lubricate the engine body (EB), a supercharger lubrication passage (130) through which lubricating oil (OL) flows to lubricate the supercharger (42), and an oil pump (69) which supplies a shared lubricating oil (OL) to both of the main and supercharger lubrication passages (144, 130).
摘要:
A supercharger transmission includes a first chamber having timing gears operatively disposed therein. A second chamber has transmission gears operatively disposed therein. An oil fill level is defined in the second chamber. A bearing retention wall is disposed between the first chamber and the second chamber. The bearing retention wall includes a return port to allow fluid communication between the first chamber and the second chamber. The return port is an aperture defined in the bearing retention wall below the oil fill level. The bearing retention wall also includes a crosstalk port to allow fluid communication between the first chamber and the second chamber. The crosstalk port is an aperture defined in the bearing retention wall above the oil fill level.
摘要:
System for protecting a turbo-supercharging unit (T, C), in particular for preventing a respective damage when a pressure of a respective lubrication oil is insufficient, comprising first bypass means (OV, GB) of exhaust gas, controlled as a function of a pressure of the lubricating oil of the turbo-supercharging unit (T, C), in order to allow to at least a part of the exhaust gas to bypass the turbine (T) when the pressure is below a first predetermined threshold.