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US 10,480,349 B2Granted
System and method for distributing and controlling oil flow
AssigneeBorgWarner Inc.
InventorsEvan Lucas, Jason P. Moscetti, Christian Longacre
Life of this patent
Estimating the term…
Abstract
An exhaust gas turbocharger (10) including a turbine section (14), a compressor section (12), a bearing housing (16) disposed between an fluidly connected to the turbine section (14) and the compressor section (12), and an oil flow means connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42).
Claims11
An exhaust gas turbocharger (10) comprising:
- a turbine section (14) including a turbine housing (18) having an exhaust gas inlet (20), an exhaust gas outlet (22), a turbine volute (24), and a turbine wheel (26) configured to be disposed in fluid communication with the exhaust gas inlet (20) and the turbine volute (24);
- a compressor section (12) including a compressor cover (30) configured to define a compressor air inlet (32), a compressor air outlet (34), and a compressor volute (36);
- and a compressor wheel (38) configured to be disposed in fluid communication with the compressor air inlet (32) and the compressor volute (36);
- a bearing housing (16) configured to be disposed between an fluidly connected to the turbine section (14) and the compressor section (12), the bearing housing (16) including an oil inlet (52) configured to be fluidly connected to an oil channel (54), and a bearing assembly (42) for rotatably supporting a shaft configured to be connected to the turbine wheel (26) and the compressor wheel (38);
- and
- an oil flow means configured to be connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42), wherein the valve assembly comprises a stop (104) configured to be connected to a valve member (102), and a spring (106) configured to be positioned within the valve member (102), wherein the stop (104) further comprises a head (104a) having a stem (104b) configured to extend therefrom, the head (104a) is configured to be fixedly connected to the bearing housing (16) and the stem (104b) is configured to engage the valve member (102) such that oil flows to a single bearing component in addition to the bearing assembly (42).
3 more elements
An exhaust gas turbocharger (10) comprising:
- a turbine section (14) including a turbine housing (18) having an exhaust gas inlet (20), an exhaust gas outlet (22), a turbine volute (24), and a turbine wheel (26) configured to be disposed in fluid communication with the exhaust gas inlet (20) and the turbine volute (24);
- a compressor section (12) including a compressor cover (30) configured to define a compressor air inlet (32), a compressor air outlet (34), and a compressor volute (36);
- and a compressor wheel (38) configured to be disposed in fluid communication with the compressor air inlet (32) and the compressor volute (36);
- a bearing housing (16) configured to be disposed between an fluidly connected to the turbine section (14) and the compressor section (12), the bearing housing (16) including an oil inlet (52) configured to be fluidly connected to an oil channel (54), and a bearing assembly (42) for rotatably supporting a shaft configured to be connected to the turbine wheel (26) and the compressor wheel (38);
- and
- an oil flow means configured to be connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42), wherein the oil flow control means comprises an oil flow control device (300) configured to be retrofit into the oil inlet (52) of the bearing housing (16), such that a turbocharger pressure differential (dP) controls and meters oil flow;
- the oil flow control device (300) further comprising an actuating member (302) and a throttle (304), wherein the actuating member (302) further comprises a housing (308) having a first (308a) and a second (308b) positive pressure chamber, the first positive pressure chamber (308a) is configured to be connected to a compressor discharge pressure and the second positive pressure chamber (308b) is configured to be connected to the turbine inlet pressure.
4 more elements
Dependencies are inferred from the claim text.