A turbocharger is provided that includes a turbine, a compressor and a bearing housing disposed and connected between the turbine and the compressor. A shaft rotatably disposed within the bearing housing and extending into the turbine and the compressor. A bearing arrangement is disposed between the
A turbocharger is provided that includes a turbine, a compressor and a bearing housing disposed and connected between the turbine and the compressor. A shaft rotatably disposed within the bearing housing and extending into the turbine and the compressor. A bearing arrangement is disposed between the shaft and the bearing housing. The bearing arrangement including first and second bearings, each of the first and second bearings formed by a respective first and second plurality of roller elements engaged between a respective first and second inner race and a respective first and second outer race. The shaft is made of a steel alloy with a carbon content of less than 0.40% by weight.
대표청구항▼
1. A turbocharger, comprising: a turbine that includes a turbine wheel;a compressor that includes a compressor wheel;a bearing housing disposed and connected between the turbine and the compressor, the bearing housing forming a bearing bore therethrough;a shaft rotatahiy disposed within the bearing
1. A turbocharger, comprising: a turbine that includes a turbine wheel;a compressor that includes a compressor wheel;a bearing housing disposed and connected between the turbine and the compressor, the bearing housing forming a bearing bore therethrough;a shaft rotatahiy disposed within the bearing housing and extending into the turbine and the compressor, wherein the turbine wheel is connected to one end of the shaft and wherein the compressor wheel is connected to an opposite end of the shaft such that the turbine wheel is rotatably disposed in the turbine and the compressor wheel is rotatably disposed in the compressor;a bearing arrangement disposed between the shaft and the bearing housing, the bearing arrangement including first and second bearings, each of the first and second bearings formed by a respective first and second plurality of roller elements engaged between a respective first and second inner race and a respective first and second outer race;an outer bearing race element disposed within the bearing bore and forming the respective first and second outer races; andan inner bearing race element disposed within the outer bearing race element and between the outer bearing race element and the shaft, the inner bearing race element forming the respective first and second inner races such that the respective first inner race is axially aligned with the respective first outer race, and the respective second inner race is axially aligned with the respective second outer race, the first inner being formed in a first end section of the inner bearing race element and the second inner race being formed in a second end section of the inner bearing race element and wherein the inner bearing race element includes a flared portion extending radially outwardly with respect to the respective first and second end sections of the inner bearing race element to provide torsional and bending rigidity to the shaft, the flared portion having a first inner diameter and the first and second end sections of the inner bearing race element each having a second inner diameter with the first inner diameter being greater than the second inner diameter;wherein the shaft is made of a steel alloy with a carbon content of less than 0.40% by weight. 2. The turbocharger of claim 1, wherein the carbon content of the steel alloy of the is 0.30% by weight. 3. The turbocharger of claim 1, wherein the carbon content of the steel alloy of the shaft is between 0.28% to 0.33% by weight. 4. The turbocharger of claim 1, wherein the shaft is connected to the inner bearing race element at first and second end portions of the shaft, the first and second end portions of the shaft having a third diameter, the shaft further forming a slender portion between the first and second end portions, the slender portion having a fourth diameter that is less than the third diameter. 5. The turbocharger of claim 4, wherein the flared portion of the inner bearing race element overlaps in an axial direction with the slender portion of the shaft. 6. The turbocharger of claim 1, wherein the inner bearing race element is formed by two components, an outboard cup and an inboard cup. 7. The turbocharger of claim 6, wherein one of the inboard and outboard cups forms a ledge and a wall that accepts therein a free, annular face of the other cup. 8. The turbocharger of claim 1, wherein the flared portion of the inner bearing race element is flanked by two transition portions each of which connects the flared portion to a respective one of the first and second end sections of the inner bearing race element. 9. A turbocharger, comprising: a turbine that includes a turbine wheel;a compressor that includes a compressor wheel;a bearing housing disposed and connected between the turbine and the compressor, the bearing housing forming a bearing bore therethrough;a shaft rotatably disposed within the bearing housing and extending into the turbine and the compressor, wherein the turbine wheel is connected to one end of the shaft and wherein the compressor wheel is connected to an opposite end of the shaft such that the turbine wheel is rotatably disposed in the turbine and the compressor wheel is rotatably disposed in the compressor;a bearing arrangement disposed between the shaft and the bearing housing, the bearing arrangement including first and second bearings, each of the first and second bearings formed by a respective first and second plurality of roller elements engaged between a respective first and second inner race and a respective first and second outer race;an outer bearing race element disposed within the bearing bore and forming the respective first and second outer races; andan inner bearing race element disposed within the outer bearing race element and between the outer bearing race element and the shaft, the inner bearing race element forming the respective first and second inner races such that the respective first inner race is axially aligned with the respective first outer race, and the respective second inner race is axially aligned with the respective second outer race, the first inner race being formed in a first end section of the inner bearing race element and the second inner race being formed in a second end section of the inner bearing element and wherein the inner bearing race element includes a flared portion extending radially outwardly with respect to the respective first and second end sections of the inner bearing race element to provide torsional and bending rigidity to the shaft, the flared portion having a first inner diameter and the first and second end sections of the inner bearing race element each having a second inner diameter with the first inner diameter being greater than the second inner diameter;a nozzle ring disposed around the turbine wheel and including a plurality of vanes with flow channels being defined between the vanes that are in fluid communication a gas inlet passage and with the turbine wheel; anda shroud arranged in surrounding relation to at least a portion of the turbine wheel;wherein the flow channels defined by the vanes are configured to direct gas tangentially and radially inward toward an inner diameter of the turbine wheel and the shroud is configured to define a flow path in communication with the gas inlet passage and the flow channels, the flow path extending in a direction substantially parallel to a rotational axis of the turbine wheel;wherein the shaft is made of a steel alloy with a carbon content of between 0.28% to 0.33% by weight. 10. The turbocharger of claim 9, wherein the carbon content of the steel alloy of the shaft is 0.30% by weight. 11. The turbocharger of claim 9, wherein the shaft is connected to the inner bearing race element at first and second end portions of the shaft, the first and second end portions of the shaft having a third diameter, the shaft further forming a slender portion between the first and second end portions, the slender portion having a fourth diameter that is less than the third diameter. 12. The turbocharger of claim 11, wherein the flared portion of the inner bearing race element overlaps in an axial direction with the slender portion of the shaft. 13. The turbocharger of claim 9, wherein the inner bearing race element is formed by two components, an outboard cup and an inboard cup. 14. The turbocharger of claim 13, wherein one of the inboard and outboard cups forms a ledge and a wall that accepts therein a free, annular face of the other cup. 15. The turbocharger of claim 9, wherein the flared portion of the inner bearing race element is flanked by two transition portions each of which connects the flared portion to a respective one of the first and second end sections of the inner bearing race element. 16. An internal combustion engine having a plurality of combustion chambers formed in a cylinder block, an intake manifold disposed to provide air or a mixture of air with exhaust gas to combustion chambers, and an exhaust manifold disposed to receive exhaust gas from the combustion chambers, the engine further comprising: a turbine that includes a turbine housing surrounding a turbine wheel, the turbine housing being fluidly connected to the exhaust manifold and disposed to receive exhaust gas therefrom to drive the turbine wheel;a compressor that includes a compressor housing that surrounds a compressor wheel, the compressor housing being fluidly connected to the intake manifold and disposed to provide air thereto;a bearing housing disposed and connected between the turbine and the compressor, the bearing housing forming a bearing bore therethrough that accommodates a shaft interconnecting the turbine wheel and the compressor wheel to transfer power therebetween;wherein the shaft is rotatably mounted within the bearing housing and extends into the turbine and the compressor such that the turbine wheel is connected to one end of the shaft and the compressor wheel is connected to an opposite end of the shaft;a bearing arrangement disposed between the shaft and the bearing housing, the bearing arrangement including first and second bearings, each of the first and second bearings formed by a respective first and second plurality of roller elements engaged between a respective first and second inner race and a respective first and second outer race;an outer bearing race element disposed within the bearing bore and forming the respective first and second outer races; andan inner bearing race element disposed within the outer bearing race element and between the outer bearing race element and the shaft, the inner bearing race element forming the respective first and second inner races such that the respective first inner race is axially aligned with the respective first outer race, and the respective second inner race is axially aligned with the respective second outer race, the first inner race being formed in a first end section of the inner bearing race element and the second inner race being formed in a second end section of the inner bearing race element and wherein the inner bearing race element includes a flared portion extending radially outwardly with respect to the respective first and second end sections of the inner bearing race element to provide torsional and bending rigidity to the shaft, the flared portion having a first inner diameter and the first an second end sections of the inner bearing race element each having a second inner diameter with the first inner diameter being greater than the second inner diameter;wherein the shaft is made of a steel alloy with a carbon content of between 0.28% to 0.30% by weight. 17. The engine of claim 16, wherein the carbon content of the steel alloy of the shaft is 0.30% by weight.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (159)
Crites Timothy E. (North Canton OH) Barker Douglas C. (North Canton OH) Clifford Joseph W. (North Canton OH) Crouser Darwin S. (Canton OH), Air turbine.
Leach David ; Bergendahl Peter Allen ; Waldo Stuart Forrest ; Smith Robert Leroy ; Phelps Robert Kim, Apparatus and methods for installing, removing and adjusting an inner turbine shell section relative to an outer turbine shell section.
Sebald, Wilhelm; Masur, Ernst, Bearing arrangement having a double-row roller bearing, turbocharger and method for feeding a lubricant to the rows of rolling bodies of a double-row roller bearing.
Brooks Vern E. (Ortonville MI) Chute Richard (Harsens Island MI), Gas turbine engine including a bearing support tube cantilevered from a turbine nozzle wall.
Elvekjaer Peter (Baden CHX) Gribi Urs (Oberrohrdorf CHX), Method for matching the flow capacity of a radial turbine of a turbocharger to a capacity of an internal combustion engi.
Severin, Emmanuel; Barthelet, Pierre; Toussaint, Lionel; Millotte, Olivier, Sealing arrangement between a variable-nozzle assembly and a turbine housing of a turbocharger.
Brown, Daniel Mark; Kirby, George Horner; Hunter, Andrew Ivan Christopher; Mattice, Richard Lloyd; Thompson, Brian E., Steam turbine inlet and methods of retrofitting.
Furman,Anthony Holmes; Swenson,Kendall Roger; Loringer,Daniel Edward, Turbocharger compressor wheel having a counterbore treated for enhanced endurance to stress-induced fatigue and configurable to provide a compact axial length.
Severin, Emmanuel; Sausse, Lorrain; Barthelet, Pierre; Abel, Francis; Dufin, Manuel, Turbocharger having nozzle ring locating pin and an integrated locator and heat shield.
Arnold, Steven D.; Vrbas, Gary D.; Dullack, Kristian N.; Thompson, Glenn F., Turbocharger having two-stage compressor with boreless first-stage impeller.
Palazzolo, Christopher Kelly; Sexton, Patrick; Cowland, Christopher, Turbocharger system for internal combustion engine with internal isolated turbocharger oil drainback passage.
Caucheteux, Mathieu; Garcin, Francois Maurice; Lombard, Jean-Pierre Francois; Triconnet, Nicolas Christian, Turbomachine casing including a device for preventing instability during contact between the casing and the rotor.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.