초록 ▼

A turbocharger having a main housing with a throughbore in which a tubular bearing carrier is mounted. A main shaft having a turbine at one end and a compressor at its other end extends through the bearing carrier and is rotatably mounted to the housing by two spaced bearing assemblies. A lubricatio

A turbocharger having a main housing with a throughbore in which a tubular bearing carrier is mounted. A main shaft having a turbine at one end and a compressor at its other end extends through the bearing carrier and is rotatably mounted to the housing by two spaced bearing assemblies. A lubrication system supplies lubricant to a squeeze film damper for hydrostatically damping the shaft vibrations and the discharge of the lubricant from the squeeze film damper is employed to lubricate the bearing assemblies.

대표청구항 ▼

A turbocharger comprising: a main housing having a throughbore, a tubular bearing carrier having an outer periphery and an inner periphery, means for mounting said bearing carrier within said housing throughbore to permit limited radial movement of said bearing carrier with respect to said housing a

A turbocharger comprising: a main housing having a throughbore, a tubular bearing carrier having an outer periphery and an inner periphery, means for mounting said bearing carrier within said housing throughbore to permit limited radial movement of said bearing carrier with respect to said housing and to form at least one annular chamber between said bearing carrier and said housing, a shaft extending through said bearing carrier, said shaft having a turbine mounted at one end and a compressor mounted at its other end, at least one bearing assembly for rotatably connecting said shaft to the inner periphery of said bearing carrier, a source of pressurized lubricant, means for fluidly connecting said source to one axial end of said annular chamber, fluid passage means formed through said bearing carrier for fluidly connecting the other axial end of said annular chamber to said bearing assembly, and said annular chamber being dimensioned so that lubricant in said annular chamber hydrostatically damps said bearing carrier and so that said lubricant being supplied to said annular chamber acts to hydrostatically damp said bearing carrier, and then passes from said annular chamber and through said bearing carrier to said at least one bearing assembly to provide lubrication thereto.