Oil bearing with drain system, gas turbine comprising such an oil bearing
First Claim
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1. An oil bearing (OB) to support a rotor of a turbine, wherein said rotor extends along a rotor axis coinciding with a bearing axis (x), comprising:
- at least one oil bearing pad (BP) being lubricated by oil,an oil sump (OS) suitable and located to collect said oil from said at least one oil bearing pad (BP) by forces of gravity,a drain system of said oil sump (OS) adapted to conduct said oil away from said oil sump (OS),wherein said drain system comprises at least three drain openings (OP1, OP2, OP3) of said oil sump (OS), comprisinga first drain opening (OP1) joining a first drain line (ODL) located between 4 o′
clock and 5 o′
clock according to said bearing axis (x),a second drain opening (OP2) joining a second drain line (ODL) located between 5;
30 and 6;
30 o′
clock,a third drain opening (OP3) joining a third drain line (ODL) located between 7 o′
clock and 8 o′
clock,wherein the clock positions refer to positions of the respective opening as seen when looking along the bearing axis with an upper-most position being a twelve o′
clock position.
3 Assignments
0 Petitions
Accused Products
Abstract
An oil bearing to support a rotor of a turbine, especially of a gas turbine, wherein the rotor extends along a rotor axis coinciding with a bearing axis, has at least one oil bearing pad being lubricated by oil, including an oil sump suitable and located to collect the oil from the bearing pads by forces of gravity, including a drain system of the oil sump to conduct the oil away from the oil sump. The drain system includes at least three drain openings of the oil sump, wherein a first drain opening joining a first drain line is located between 4 o'"'"'clock and 5 o'"'"'clock according to the bearing axis, wherein a second drain opening joining a second drain line is located between 5:30 and 6:30, wherein a third drain opening joining a third drain line is located between 7 o'"'"'clock and 8 o'"'"'clock.
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Citations
6 Claims
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1. An oil bearing (OB) to support a rotor of a turbine, wherein said rotor extends along a rotor axis coinciding with a bearing axis (x), comprising:
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at least one oil bearing pad (BP) being lubricated by oil, an oil sump (OS) suitable and located to collect said oil from said at least one oil bearing pad (BP) by forces of gravity, a drain system of said oil sump (OS) adapted to conduct said oil away from said oil sump (OS), wherein said drain system comprises at least three drain openings (OP1, OP2, OP3) of said oil sump (OS), comprising a first drain opening (OP1) joining a first drain line (ODL) located between 4 o′
clock and 5 o′
clock according to said bearing axis (x),a second drain opening (OP2) joining a second drain line (ODL) located between 5;
30 and 6;
30 o′
clock,a third drain opening (OP3) joining a third drain line (ODL) located between 7 o′
clock and 8 o′
clock,wherein the clock positions refer to positions of the respective opening as seen when looking along the bearing axis with an upper-most position being a twelve o′
clock position. - View Dependent Claims (2, 3, 4, 5)
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6. An oil bearing (OB) to support a rotor of a turbine, wherein said rotor extends along a rotor axis coinciding with a bearing axis (x), comprising:
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an oil bearing pad (BP) being lubricated by oil, an oil sump (OS) suitable and located to collect said oil from said bearing pad (BP) by forces of gravity, a drain system of said oil sump (OS) adapted to conduct said oil away from said oil sump (OS), wherein said drain system comprises at least three drain openings (OP1, OP2, OP3) of said oil sump (OS), comprising; a first drain opening (OP1) joining a first drain line (ODL) located between 4 o′
clock and 5 o′
clock according to said bearing axis (x),a second drain opening (OP2) joining a second drain line (ODL) located between 5;
30 and 6;
30, anda third drain opening (OP3) joining a third drain line (ODL) located between 7 o′
clock and 8 o′
clock, andbearing instrumentation cables let through said first and/or third drain opening (OP1, OP3) to connect bearing instrumentation to a power supply (PS) and/or a signal processing unit (CPU), wherein the clock positions refer to positions of the respective opening seen when looking along the bearing axis with an upper-most position being a twelve o′
clock position.
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Specification
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Current AssigneeSiemens Energy Global GmbH & Co. KG (Siemens AG)
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Original AssigneeSiemens AG
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InventorsAndersson, Thomas, Burns, Nigel, Frejd, Mikael
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Primary Examiner(s)Kershteyn, Igor
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Assistant Examiner(s)Ribadeneyra, Theodore
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Application NumberUS14/904,989Publication NumberTime in Patent Office1,604 DaysField of SearchNoneUS Class CurrentCPC Class CodesF01D 25/16 Arrangement of bearings; Su...F01D 25/18 Lubricating arrangements of...F02C 7/06 Arrangements of bearings be...F02C 7/20 Mounting or supporting of p...F16C 2360/23 Gas turbine enginesF16C 33/1045 Details of supply of the li...
