EP3242998A1 - Système de génération de puissance et procédé d'assemblage associé - Google Patents

Système de génération de puissance et procédé d'assemblage associé

Info

Publication number
EP3242998A1
EP3242998A1 EP16735349.9A EP16735349A EP3242998A1 EP 3242998 A1 EP3242998 A1 EP 3242998A1 EP 16735349 A EP16735349 A EP 16735349A EP 3242998 A1 EP3242998 A1 EP 3242998A1
Authority
EP
European Patent Office
Prior art keywords
gearbox
internal combustion
combustion engine
converting device
reciprocating internal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16735349.9A
Other languages
German (de)
English (en)
Other versions
EP3242998A4 (fr
Inventor
Mark Daniel Bowdich
Douglas Edwin Berry
Bruce Ernest Richard Wolff
Gerhard Kramer
Scott Daniel Woodruff
Ulrich Handel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce Solutions America Inc
Original Assignee
MTU America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/590,698 external-priority patent/US9550412B2/en
Application filed by MTU America Inc filed Critical MTU America Inc
Publication of EP3242998A1 publication Critical patent/EP3242998A1/fr
Publication of EP3242998A4 publication Critical patent/EP3242998A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/76—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
    • F16D3/77—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part the ring being metallic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines

Definitions

  • the invention relates to a power generation system and to a method for assembling the same.
  • Figure 1 A is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure IB is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 1C is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure ID is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 2A is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 2B is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 2C is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 2D is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 3 A is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 3B is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 3C is a schematic diagram of a power generation system in accordance with an embodiment of the invention.
  • Figure 4 is a schematic diagram of a portion of a power generation system in accordance with an embodiment of the invention.
  • Figure 5 is a schematic diagram of a portion of a power generation system in accordance with an embodiment of the invention.
  • Figure 6 is a schematic diagram of a portion of a power generation system in accordance with an embodiment of the invention.
  • Figure 7 is a schematic diagram of a portion of a power generation system in accordance with an embodiment of the invention.
  • Figure 8 is a schematic diagram of a portion of a power generation system in accordance with an embodiment of the invention.
  • a power generation system is shown generally at 120 having a repowered portion 10b in accordance with an embodiment of the invention.
  • the repowered portion 10b is substantially similar to the repowered portion 10a shown in Figure 1 A except for the arrangement of the second connecting structure, which is shown generally at 14b.
  • the second connecting structure 14b may be characterized as a direct power transmitting connection 70 including a hub member 73 connected to a rigid circular disk 75 by a first plurality of fasteners 72 (e.g., bolts) and a flexible circular disk (e.g., a flexplate) 77 connected to the input 66 (i.e., a driven end of a rotor) by a second plurality of fasteners 78.
  • the flexible circular disk 77 is then connected to the rigid circular disk 75 by a third plurality of fasteners 74 (e.g., bolts).
  • the hub member 73 may include a recess 76 to permit insertion and subsequent connection of the gearbox output 64 with the hub member 73.
  • the second connecting structure 14b is a mechanical connection that permits the gearbox 36 to transmit power originating from the reciprocating internal combustion engine 32 to the electrical converting device 34.
  • the direct power transmitting connection 70 of the second connecting structure 14b may accommodate at least some of the axial misalignment and the relative movement occurring between the input 66 of the electrical converting device 34 and the gearbox output 64.
  • the gearbox 36 may be characterized to include a stronger gearbox outer housing and larger bearings.
  • a power generation system is shown generally at 220 having a repowered portion 10c in accordance with an embodiment of the invention.
  • the repowered portion 10c is substantially similar to the repowered portion 10a shown in Figure 1 A except for the arrangement of the first connecting structure, which is shown generally at 12b.
  • the repowered portion 10c is differentiated from the repowered portion 10a shown in Figure 1 A due to the resilient mounting of the gearbox 36 with respect to the support frame 50 (i.e., the gearbox 36 is rigidly mounted to the support frame 50 in Figure 1 A); as such, it will be appreciated that the first misalignment coupling 40 may be omitted from the design of the first connecting structure 12b because both of the reciprocating internal combustion engine 32 and gearbox 36 are resiliently mounted.
  • the repowered portion 10c is differentiated from the repowered portion 10a shown in Figure 1 A in that the second misalignment coupling 42 may allow for a larger range of motion arising from the resilient mounting of the gearbox 36 as well as for the bending and twisting of the support frame 50.
  • the first connecting structure 12b may be characterized as a flanged connection 80 having a torsionally resilient coupling 46. Further, in an embodiment, this flanged connection 80 possesses the function of rigidly connecting the reciprocating internal combustion engine 32 to the gearbox 36, such that the reciprocating internal combustion engine 32, the flanged connection 80 and the gearbox 36 form a common resilient mounting structure.
  • the torsionally resilient coupling 46 is arranged between and connects the output device 60 (e.g., a flywheel) of the reciprocating internal combustion engine 32 and the gearbox input 62 (e.g., a gearbox input shaft) of the gearbox 36.
  • the first connecting structure 12b may be further characterized to include a flywheel housing 82 connected to the reciprocating internal combustion engine 32 that contains the output device 60
  • the first connecting structure 12b may be further characterized to include a gearbox input housing 84 connected to the gearbox 36 that contains the gearbox input 62.
  • the housings 82, 84 may be flanged / connected to one another.
  • the torsionally resilient coupling 46 may be located within one of or both of the flywheel housing 82 and the gearbox input housing 84.
  • the gearbox 36 is resiliently mounted with respect to the support frame 50.
  • the resilient mounting of the gearbox 36 is permitted by way of one or more supports 86 connected to the support frame 50 and one or more resilient mounts 88 that connect the gearbox 36 to the one or more supports 86.
  • the one or more supports 86 may be attached to the support frame 50 by any desirable connection such as, for example, a welded connection.
  • the one or more supports 86 may include one or more individual members, as illustrated, or, alternatively, one or more parallel elongated members that fulfill the function of both the one or more supports 86 and the one or more supports 52, and that are substantially equal to a geometry (e.g., a length) of the common structure formed by the gearbox 36, the flanged connection 80 and the reciprocating internal combustion engine 32.
  • the one or more supports 86 and resilient mounts 88 may be utilized concurrently with the one or more supports 52 and resilient mounts 54 to resiliently mount the gearbox 36 and the reciprocating internal combustion engine 32 with respect to the support frame 50. Even further, it will be appreciated that the one or more supports 86 and resilient mounts 88 may be characterized to include dissimilar geometries from the one or more supports 52 and resilient mounts 54 in order to accommodate the alignment of, for example, the output device 60 (e.g., a flywheel) of the reciprocating internal combustion engine 32 and, for example, the gearbox input 62 (e.g., a gearbox input shaft) of the gearbox 36.
  • the output device 60 e.g., a flywheel
  • the gearbox input 62 e.g., a gearbox input shaft
  • the resilient mounts 54, 88 may be characterized to include different stiffnesses due to different amounts of weight being imparted to the resilient mounts 54, 88 by, respectively, the reciprocating internal combustion engine 32 and the gearbox 36.
  • a power generation system is shown generally at 320 having a repowered portion lOd in accordance with an embodiment of the invention.
  • the repowered portion lOd is substantially similar to the repowered portion 10c shown in Figure 1C except for a) the arrangement of the resilient mounting of the gearbox 36 and the reciprocating internal combustion engine 32 with respect to the support frame 50, and b) the arrangement of the first connecting structure, which is shown generally at 12c.
  • the gearbox 36 and reciprocating internal combustion engine 32 of Figure ID share and are connected into a common resilient mounting structure by a rigid and strong skid 94 as opposed to their sharing and being connected into a common resilient mounting structure by a flanged connection 80.
  • the first connecting structure 12c is substantially similar to the first connecting structure 12a of Figures 1 A, IB except that the first misalignment coupling 40 may be omitted because both of the reciprocating internal combustion engine 32 and gearbox 36 are resiliently mounted.
  • the skid 94 is connected to the support frame 50 by a plurality of resilient mounts 92.
  • both of the gearbox 36 and the reciprocating internal combustion engine 32 may be resiliently mounted with a common structure while also maintaining the alignment of, for example, the output device 60 of the reciprocating internal combustion engine 32 and the gearbox input 62 of the gearbox 36.
  • power generation systems are shown respectively at 420, 520, 620, 720 each having a repowered portion lOe, lOf, lOg, lOh in accordance with an embodiment of the invention.
  • the power generation systems 420, 520, 620, 720 are respectively similar to the power generation systems 20, 120, 220, 320 of Figures 1 A-ID with the exception of the design of the gearbox (i.e., "Gearbox B"), which is shown generally at 136 in each of Figures 2A-2D.
  • “Gearbox B” is differentiated from the gearbox 36 (i.e., "Gearbox A") in that "Gearbox B” includes an integrated clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter, which is shown generally at 96; it will be appreciated that reference numeral 96 may refer to any of the above-described components and that the invention is not limited to including a clutch, an overrunning clutch, constant- or variable-fill fluid coupling or torque converter at reference numeral 96.
  • the clutch, integrated overrunning clutch, constant- or variable-fill fluid coupling or torque converter 96 is utilized for selectively translating rotational movement during specific operating conditions (e.g.
  • the torsionally resilient coupling 46 of the repowered portion lOe, lOf, lOg, lOh may be differentiated from the torsionally resilient coupling 46 of the repowered portion 10a, 10b, 10c, lOd in that the torsionally resilient coupling 46 of the repowered portion lOe, lOf, lOg, lOh (or of the repowered portion lOi, lOj, 10k described in the foregoing disclosure) includes a lower degree of torsional stiffness.
  • the gears of "Gearbox B" may not need to be sized to accommodate torque reversals.
  • “Gearbox B” may include gears with an increased ability to withstand whatever low- magnitude torque pulses may still be transmitted from the output device 60 of the reciprocating internal combustion engine 32 to the gears within the gearbox 136 by way of the torsionally resilient coupling 46 of the repowered portion lOe, lOf, lOg, lOh (or of the repowered portion lOi, lOj, 10k described in the foregoing disclosure) and the clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 96 throughout the range of operating conditions.
  • the torsionally resilient coupling 46 of the repowered portion lOe, lOf, lOg, lOh may be characterized as having a lower torsional stiffness than the torsionally resilient coupling 46 of the repowered portion 10a, 10b, 10c, lOd due to the clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 96 reducing the need for high torsional stiffness within the torsionally resilient coupling 46 to avoid damage being imparted to the torsionally resilient coupling 46 arising from extremely high-magnitude torque pulses during, for example, the starting of the reciprocating internal combustion engine 32.
  • '96' may include a clutch such that when the reciprocating internal combustion engine 32 is in an idle condition, the clutch 96 may be disengaged completely, or, alternatively, the applied pressure of the clutch 96 may be reduced.
  • the gearbox 136 may be permitted to continue to operate as the clutch 96 may allow for a controlled amount of slip when the reciprocating internal combustion engine 32 is idling; in an embodiment, the slipping may be controlled by a control system (not shown) that adjusts the reduced pressure applied by the clutch 96.
  • the same method of allowing a controlled amount of slip within the clutch 96 may be used, in the example of a locomotive, during dynamic braking when the electrical converting device 34 may be required to rotate at a somewhat elevated speed to produce field current for the locomotive's traction motors (not shown), while the net power being transmitted through the power generation system remains low.
  • allowing the clutch 96 to slip during idle and dynamic braking may isolate the gears within the gearbox 136 from whatever low-magnitude torque reversals may be produced during idle and dynamic braking.
  • '96' is a clutch
  • the clutch 96 may permit the electrical converting device 34 to receive the small amount of power from the reciprocating internal combustion engine 32.
  • Such examples may include circumstances where the electrical converting device 34 is needed to power small auxiliary loads during idle, or, to provide a field current for exciting traction motors during dynamic braking.
  • additional isolation is provided between the torque pulses of the reciprocating internal combustion engine 32 and the rotating mass of the electrical converting device 34.
  • gears may not need to be sized accordingly to accommodate torque reversal from the reciprocating internal combustion engine 32.
  • the clutch 96 may be permitted to be disengaged while the reciprocating internal combustion engine 32 is being started and stopped while being engaged at all other times (i.e., no slipping), including during idle and dynamic braking.
  • the gears may need to be sized accordingly to accommodate the low-magnitude torque reversals that may be present during idle and dynamic braking.
  • the external clutch 196 may not be disengaged or limit the transfer of torque when the load exerted by the reciprocating internal combustion engine 32 decreases by an amount that produces low-magnitude torque reversals that the gears in "Gearbox C" may be able to withstand.
  • the power generation system 820, 920, 1020 is utilized in a locomotive during dynamic braking, it may be desirable to allow the external clutch 196 to remain engaged, or, alternatively, to allow the transfer of torque.
  • the external clutch 196 may remain engaged during idling of the reciprocating internal combustion engine 32, even if the reciprocating internal combustion engine 32 experiences some degree torque reversal.
  • the external clutch 196 may disengage or limit the transfer of torque from the reciprocating internal combustion engine 32.
  • '96' includes an overrunning clutch
  • '96' would be automatically a) engaged whenever torque being transmitted from the reciprocating internal combustion engine 32 is positive and b) disengaged during brief moments when the torque from the reciprocating internal combustion engine 32 is negative; as such, because an overrunning clutch 96 does not slip, it would transmit the full magnitude of any positive torque pulses to the gears, even the extremely large pulses during engine start.
  • the constant- or variable-fill fluid coupling 96 may include a lock-up clutch (not shown) for controlling and increasing the efficiency of the constant- or variable-fill fluid coupling 96.
  • '96' includes a torque converter, '96' would allow its output torque to be higher than its input torque during high amounts of slip; in an embodiment, the torque converter 96 may include a stator (not shown), and, in an embodiment, may also include a lock-up clutch (not shown).
  • Gearbox B may be characterized as a type of gearbox that is typically utilized in marine applications (i.e., gearboxes in marine application may include a clutch 96, or may include a constant- or variable-fill fluid coupling or torque converter 96 with some degree of slip). Functionally, the slipping of a constant- or variable-fill fluid coupling or torque converter 96 that does not include a lock-up clutch reduces the effective maximum rated speed of the reciprocating internal combustion engine 32 communicated to the gears within "Gearbox B." Thus, a lower effective maximum rated speed of the reciprocating internal combustion engine 32 may be communicated to the gears.
  • a reduced load would be placed on starter motors, batteries and the like if the electrical converting device 34 is permitted to remain stationary while the reciprocating internal combustion engine 32 is being started; it will be appreciated, however, that the reduced load is an additional benefit of keeping a clutch 96 disengaged or of keeping a variable-fill fluid coupling 96 empty during engine start and should not be construed as a mandatory configuration of an embodiment of the present invention.
  • power generation systems are shown respectively at 820, 920, 1020 each having a repowered portion lOi, lOj, 10k in accordance with an embodiment of the invention.
  • the power generation systems 820, 920, 1020 are respectively similar to the power generation systems 420, 520, 720 of Figures 2 A, 2B and 2D with the exception of the design of the first connecting structure 12d (see Figures 3A-3B), 12e (see Figure 3C).
  • the power generation systems 820, 920, 1020 are differentiated from the power generation systems 420, 520, 720 by way of the design of the gearbox (i.e., "Gearbox C"), which is shown generally at 236 in Figures 3A-3C.
  • the gearbox i.e., "Gearbox C”
  • the first connecting structure 12d, 12e is differentiated from first connecting structure 12a, 12c by the inclusion of an external clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196.
  • the "Gearbox C" is differentiated from the “Gearbox B” by the lack of inclusion of an internal clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 96.
  • the external clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196 may be included in the design of the first connecting structure 12d, 12e for the purpose of reducing the load on the gearbox input 62 of "Gearbox C.”
  • the first connecting structure 12d may be characterized by the external clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196 being arranged between and connecting the torsionally resilient coupling 46 and the first misalignment coupling 40.
  • the first connecting structure 12d may be characterized by the external clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196 being arranged between and connecting the first misalignment coupling 40 and the gearbox input 62.
  • the first connecting structure 12e may be characterized by the external clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196 being arranged between and connecting the torsionally resilient coupling 46 and the gearbox input 62 (e.g., a gearbox input shaft) of the gearbox 236.
  • the clutch, external overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196 is utilized for selectively translating rotational movement during specific operating conditions (e.g. an idling condition) of the reciprocating internal combustion engine 32 when torque reversals of the output device 60 (e.g., a flywheel) of the reciprocating internal combustion engine 32 are likely to occur.
  • specific operating conditions e.g. an idling condition
  • the output device 60 e.g., a flywheel
  • the "Gearbox C" may not need to include an integrated clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 96 as shown and described above with respect to the "Gearbox B," and, also because of this arrangement the gears of "Gearbox C" may not need to be sized to accommodate torque reversals.
  • “Gearbox C” may include gears with an increased ability to withstand whatever low-magnitude torque pulses may still be transmitted from the output device 60 of the reciprocating internal combustion engine 32 to the gears within the gearbox 236 by way of the torsionally resilient coupling 46 and through the clutch, overrunning clutch, constant- or variable-fill fluid coupling or torque converter 196 throughout the range of operating conditions.
  • FIG. 4 a portion of a power generation system is shown generally at 1120 in accordance with an embodiment of the invention.
  • the portion of the power generation system 1120 shown in Figure 4 includes an exemplary second connecting structure 14c that connects an electrical converting device 34 to a gearbox 36 / 136 / 236.
  • the second connecting structure 14c will be described in greater detail in the following disclosure whereas the electrical converting device 34 and the gearbox 36 / 136 / 236 have been described in the preceding Figures.
  • the second connecting structure 14c may be utilized in place of the second connecting structure 14a of the power generation systems 20, 420, 820 described above at Figures 1 A, 2A, 3 A.
  • the power generation system 1120 also includes a reciprocating internal combustion engine (not shown but seen at 32 in the preceding Figures).
  • the reciprocating internal combustion engine may be, for example, a diesel engine).
  • the power generation system 1120 also includes the gearbox 36 / 136 / 236 and the electrical converting device 34 (i.e., a device that converts mechanical energy at an input 66 into electrical energy at an output (not shown but seen at 68 in the preceding Figures).
  • the electrical converting device 34 may include, for example, a traction alternator or a traction generator.
  • the power generation system 1120 also includes a first connecting structure (not shown but seen at 12a or 12d in the preceding Figures) that connects the reciprocating internal combustion engine to the gearbox 36 / 136 / 236.
  • the power generation system 1120 also includes the second connecting structure 14c.
  • the reciprocating internal combustion engine, electrical converting device 34 and gearbox 36 / 136 / 236 are mounted to a support frame 50 of an industrial vehicle (e.g., a locomotive, marine vessel or the like).
  • the gearbox 36 / 136 / 236 is rigidly mounted to the support frame 50.
  • the electrical converting device 34 is an originally-installed component, and, the reciprocating internal combustion engine is not an originally-installed component, but rather, a replacement component that may be "cleaner" and/or defined by an increased efficiency when compared to an originally-installed reciprocating internal combustion engine (not shown) that has been removed from the support frame 50.
  • the electrical converting device 34 may be an identical replacement (e.g., the same model type or number) for an originally- installed electrical converting device, where the originally-installed electrical converting device is damaged or is otherwise no longer able to function reliably.
  • the electrical converting device 34 may be mechanically equivalent to the originally-installed electrical converting device, where this mechanical equivalence includes the electrical converting device 34 having an electrical converting device input that is designed to connect directly with the output of the originally-installed reciprocating internal combustion engine, and having a maximum permitted rotating speed that is within, for example, 20% of the maximum permitted rotating speed of the originally-installed reciprocating internal combustion engine.
  • the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14c may be introduced in order to permit the reciprocating internal combustion engine to functionally cooperate with the electrical converting device 34. Accordingly, a combination of one or more of the reciprocating internal combustion engine, the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14c may be referred to as a repowered portion 101 of the power generation system 1120.
  • the second connecting structure 14c is a mechanical connection that permits the gearbox 36 / 136 / 236 to transmit power originating from the reciprocating internal combustion engine to the electrical converting device 34.
  • the second connecting structure 14c may include a misalignment coupling 42 and a torsionally resilient coupling 98 for connecting a gearbox output 64 (e.g. a gearbox output shaft) of the gearbox 36 / 136 / 236 to an input 66 (i.e., a driven end of a rotor) of the electrical converting device 34.
  • a first end of the torsionally resilient coupling 98 is connected to the gearbox output 64, and, a first end of the misalignment coupling 42 is connected to a second end of the torsionally resilient coupling 98.
  • a second end of the misalignment coupling 42 is connected to the input 66 of the electrical converting device 34.
  • the torsionally resilient coupling 98 may be functionally utilized as a "rotating shock absorber” that damps torque pulses / vibrations produced by the reciprocating internal combustion engine in order to provide a smoother torque profile to driven equipment (e.g., the electrical converting device 34).
  • the torsionally resilient coupling 98 could be utilized instead of, or, in addition to, for example, a torsionally resilient coupling (see, e.g., 46 in Figure 1 A) that is incorporated in the first connecting structure (see, e.g., 12a in Figure 1 A); the choice of whether to include the torsionally resilient coupling 98 in the second connecting structure 14c alone, or, alternatively, in both of the first connecting structure and the second connecting structure 14c would depend on technical characteristics of a particular repowered portion (such as, e.g., the choice of replacement engine being used, the choice of gearbox 36 / 136 / 236 being used, and the model of electrical converting device 34 being used, or the like).
  • the torsionally resilient coupling 98 may be an all-steel coupling that is filled with oil to provide damping.
  • the torsionally resilient coupling 98 may be commercially available from GEISLINGER®.
  • the torsionally resilient coupling 98 is not limited to an all-steel structure, and, as such, the torsionally resilient coupling 98 may include a rubber or silicone material; a rubber or silicone torsionally resilient coupling 98 may be commercially available from
  • VULKAN® and sold under the trade-name VULASTIK®, or, alternatively, a rubber or silicone torsionally resilient coupling 98 may be commercially available from CENT A® and sold under the trade-names CENTAFLEX® or CENTAMAX®.
  • the misalignment coupling 42 may functionally transmit the rotation of the gearbox output 64 of the gearbox 36 / 136 / 236 to the input 66 of the electrical converting device 34. Further, the misalignment coupling 42 may be functionally used to accommodate relative motion occurring between the rigidly mounted gearbox 36 / 136 / 236 and the rigidly mounted electrical converting device 34 when the support frame 50 undergoes bending or twisting during vehicle operation.
  • the misalignment coupling 42 may include a "Gesilco Butterfly" misalignment coupling commercially available from GEISLINGER®; as a result, the misalignment coupling 42 may be characterized to have a high torque capacity and a high misalignment capacity in a relatively compact length as well as being virtually maintenance-free due to a carbon-fiber construction.
  • the misalignment coupling 42 is not limited to a
  • the second connecting structure 14c may also include a support 44 that supports the driven end or input 66 of the rotor of the electrical converting device 34.
  • the support 44 may functionally align the rotor of the electrical converting device 34 with the stator of the electrical converting device 34.
  • the support 44 is rigidly mounted to the support frame 50.
  • the support 44 may be included in the design of the second connecting structure 14c if, for example, the electrical converting device 34 is characterized to include a "single bearing" structure that is intended to support only the free end of the rotor of the electrical converting device 34. As such, the support 44 may be included in order to function as a "second bearing” that assists the electrical converting device 34 in the supporting the driven end or input 66 of its rotor.
  • the support 44 may be omitted from the design of the second connecting structure 14c due to the fact that the electrical converting device 34 includes first and second bearings that support the driven end or input 66 of the rotor as well as the free end of the rotor.
  • FIG. 5 a portion of a power generation system is shown generally at 1220 in accordance with an embodiment of the invention.
  • the portion of the power generation system 1220 shown in Figure 5 includes an exemplary second connecting structure 14d that connects an electrical converting device 34 to a gearbox 36 / 136 / 236.
  • the second connecting structure 14d will be described in greater detail in the following disclosure whereas the electrical converting device 34 and the gearbox 36 / 136 / 236 have been described in the preceding Figures.
  • the second connecting structure 14d may be utilized in place of the second connecting structure 14a of the power generation systems 20, 420, 820, 1120 described above at Figures 1 A, 2A, 3 A, 4.
  • the power generation system 1220 also includes a reciprocating internal combustion engine (not shown but seen at 32 in the preceding Figures).
  • the reciprocating internal combustion engine may be, for example, a diesel engine).
  • the power generation system 1220 also includes the gearbox 36 / 136 / 236 and the electrical converting device 34 (i.e., a device that converts mechanical energy at an input 66 into electrical energy at an output (not shown but seen at 68 in the preceding Figures).
  • the electrical converting device 34 may include, for example, a traction alternator or a traction generator.
  • the power generation system 1220 also includes a first connecting structure (not shown but seen at 12a or 12d in the preceding Figures) that connects the reciprocating internal combustion engine to the gearbox 36 / 136 / 236.
  • the power generation system 1220 also includes the second connecting structure 14d.
  • the reciprocating internal combustion engine, electrical converting device 34 and gearbox 36 / 136 / 236 are mounted to a support frame 50 of an industrial vehicle (e.g., a locomotive, marine vessel or the like).
  • the gearbox 36 / 136 / 236 is rigidly mounted to the support frame 50.
  • the electrical converting device 34 is an originally-installed component, and, the reciprocating internal combustion engine is not an originally-installed component, but rather, a replacement component that may be "cleaner" and/or defined by an increased efficiency when compared to an originally-installed reciprocating internal combustion engine (not shown) that has been removed from the support frame 50.
  • the electrical converting device 34 may be an identical replacement (e.g., the same model type or number) for an originally- installed electrical converting device, where the originally-installed electrical converting device is damaged or is otherwise no longer able to function reliably.
  • the electrical converting device 34 may be mechanically equivalent to the originally-installed electrical converting device, where this mechanical equivalence includes the electrical converting device 34 having an electrical converting device input that is designed to connect directly with the output of the originally-installed reciprocating internal combustion engine, and having a maximum permitted rotating speed that is within, for example, 20% of the maximum permitted rotating speed of the originally-installed reciprocating internal combustion engine.
  • the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14d may be introduced in order to permit the reciprocating internal combustion engine to functionally cooperate with the electrical converting device 34. Accordingly, a combination of one or more of the reciprocating internal combustion engine, the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14d may be referred to as a repowered portion 10m of the power generation system 1220.
  • the second connecting structure 14d is a mechanical connection that permits the gearbox 36 / 136 / 236 to transmit power originating from the reciprocating internal combustion engine to the electrical converting device 34.
  • the second connecting structure 14d may include a torsionally resilient misalignment coupling 100 for connecting a gearbox output 64 (e.g. a gearbox output shaft) of the gearbox 36 / 136 / 236 to an input 66 (i.e., a driven end of a rotor) of the electrical converting device 34.
  • the torsionally resilient misalignment coupling 100 is an integrated structural component including both of the misalignment coupling 42 as described above in Figure 4 and the torsionally resilient coupling 98 as described above in Figure 4.
  • a first end of the torsionally resilient misalignment coupling 100 is connected to the gearbox output 64.
  • a second end of the torsionally resilient misalignment coupling 100 is connected to the input 66 of the electrical converting device 34.
  • the torsionally resilient misalignment coupling 100 may be functionally utilized as a "rotating shock absorber" that damps torque pulses / vibrations produced by the reciprocating internal combustion engine in order to provide a smoother torque profile to driven equipment (e.g., the electrical converting device 34).
  • the torsionally resilient misalignment coupling 100 may also functionally transmit the rotation of the gearbox output 64 of the gearbox 36 / 136 / 236 to the input 66 of the electrical converting device 34.
  • the torsionally resilient misalignment coupling 100 may be functionally used to accommodate relative motion occurring between the rigidly mounted gearbox 36 / 136 / 236 and the rigidly mounted electrical converting device 34 when the support frame 50 undergoes bending or twisting during vehicle operation.
  • the torsionally resilient misalignment coupling 100 may include a "Gesilco Butterfly" misalignment coupling with an integrated oil-filled steel spring coupling commercially available from GEISLINGER®; as a result, the torsionally resilient misalignment coupling 100 may be characterized to have a high torque capacity and a high misalignment capacity in a relatively compact length.
  • the torsionally resilient misalignment coupling 100 is not limited to a GESILCO® butterfly-style misalignment coupling, and, as such, any type of coupling that possesses the characteristics discussed above may be used as an alternative to the GESILCO® butterfly-style misalignment coupling; a rubber or silicone torsionally resilient misalignment coupling 100 may be commercially available from VULKAN® and sold under the trade-name RATO®, or alternatively, a rubber or silicone torsionally resilient misalignment coupling 100 may be commercially available from CENT A® and sold under the trade-name CENT AX®.
  • the second connecting structure 14d may also include a support 44 that supports the driven end or input 66 of the rotor of the electrical converting device 34.
  • the support 44 may functionally align the rotor of the electrical converting device 34 with the stator of the electrical converting device 34.
  • the support 44 is rigidly mounted to the support frame 50.
  • the support 44 may be included in the design of the second connecting structure 14d if, for example, the electrical converting device 34 is characterized to include a "single bearing" structure that is intended to support only the free end of the rotor of the electrical converting device 34. As such, the support 44 may be included in order to function as a "second bearing” that assists the electrical converting device 34 in the supporting the driven end or input 66 of its rotor.
  • the support 44 may be omitted from the design of the second connecting structure 14d due to the fact that the electrical converting device 34 includes first and second bearings that support the driven end or input 66 of the rotor as well as the free end of the rotor.
  • FIG. 6 a portion of a power generation system is shown generally at 1320 in accordance with an embodiment of the invention.
  • the portion of the power generation system 1320 shown in Figure 6 includes an exemplary first connecting structure 12f that connects a reciprocating internal combustion engine 32 (e.g., a diesel engine) to a gearbox 36 / 136 / 236.
  • the first connecting structure 12f will be described in greater detail in the following disclosure whereas the internal combustion engine 32 and the gearbox 36 / 136 / 236 have been described in the preceding Figures.
  • first connecting structure 12f may be utilized in place of the first connecting structure 12a or 12d of the power generation systems 20, 120, 420, 520, 820, 920 described above at Figures 1 A, IB, 2A, 2B, 3 A, 3B (noting that for the power generation systems 820 and 920 of Figures 3 A and 3B that the torsi onally resilient misalignment coupling 102 of the first connecting structure 12 may or may not also include the clutch 196).
  • the power generation system 1320 also includes an electrical converting device (not shown but seen at 34 in the preceding Figures).
  • the electrical converting device converts mechanical energy at an input (not shown but seen at 66 in the preceding Figures) into electrical energy at an output (not shown but seen at 68 in the preceding Figures).
  • the electrical converting device may include, for example, a traction alternator or a traction generator.
  • the power generation system 1320 also includes a second connecting structure (not shown but seen atl4a, 14b, 14c or 14d in the preceding Figures) that connects the gearbox 36 /136 / 236 to the electrical converting device.
  • the power generation system also includes the first connecting structure 12f.
  • the reciprocating internal combustion engine 32, the electrical converting device and the gearbox 36 / 136 / 236 are mounted to a support frame 50 of an industrial vehicle (e.g., a locomotive, marine vessel or the like).
  • the gearbox 36 / 136 / 236 is rigidly mounted to the support frame 50.
  • the electrical converting device is an originally-installed component, and, the reciprocating internal combustion engine 32 is not an originally-installed component, but rather, a replacement component that may be "cleaner" and/or defined by an increased efficiency when compared to an originally-installed reciprocating internal combustion engine (not shown) that has been removed from the support frame 50.
  • the electrical converting device may be an identical replacement (e.g., the same model type or number) for an originally-installed electrical converting device, where the originally-installed electrical converting device is damaged or is otherwise no longer able to function reliably.
  • the electrical converting device may be mechanically equivalent to the originally-installed electrical converting device, where this mechanical equivalence includes the electrical converting device having an electrical converting device input that is designed to connect directly with the output of the originally-installed reciprocating internal combustion engine, and having a maximum permitted rotating speed that is within, for example, 20% of the maximum permitted rotating speed of the originally-installed reciprocating internal combustion engine.
  • the gearbox 36 /l 36 / 236, the first connecting structure 12f and the second connecting structure may be introduced in order to permit the reciprocating internal combustion engine 32 to functionally cooperate with the electrical converting device. Accordingly, a combination of one or more of the reciprocating internal combustion engine 32, the gearbox 36 / 136 / 236, the first connecting structure 12f and the second connecting structure may be referred to as a repowered portion 10 ⁇ of the power generation system 1320.
  • the first connecting structure 12f is a mechanical connection that permits the reciprocating internal combustion engine 32 to transmit power to the gearbox 36 / 136 / 236.
  • the first connecting structure 12f includes a torsionally resilient misalignment coupling 102 having a first end connected to an output device 60 (e.g., a flywheel) of the reciprocating internal combustion engine 32.
  • the torsi onally resilient misalignment coupling 102 includes a second end connected to a gearbox input 62 (e.g., a gearbox input shaft) of the gearbox 36 / 136 / 236.
  • the first connecting structure 12f may be said to include the output device 60, the torsi onally resilient misalignment coupling 102 and the gearbox input 62.
  • the torsi onally resilient misalignment coupling 102 is located between the reciprocating internal combustion engine 32 and the gearbox 36 / 136 / 236 for connecting the output device 60 of the reciprocating internal combustion engine 32 to the gearbox input 62 of the gearbox 36 / 136 / 236.
  • the torsionally resilient misalignment coupling 102 transmits the rotational movement of the output device 60 of the reciprocating internal combustion engine 32 to the gearbox input 62 of the gearbox 36 / 136 / 236.
  • the torsionally resilient misalignment coupling 102 may be functionally used as a "rotating shock absorber" that damps torque pulses / vibrations produced by the reciprocating internal combustion engine 32 in order to provide a smoother torque profile to the driven equipment (e.g., the gearbox 36 / 136 / 236, and, ultimately, the electrical converting device).
  • the driven equipment e.g., the gearbox 36 / 136 / 236, and, ultimately, the electrical converting device.
  • the torsionally resilient misalignment coupling 102 may also be functionally used to accommodate at least some relative motion that occurs between a resiliently mounted reciprocating internal combustion engine 32 (see, e.g., supports 52 and resilient mounts 54 described above in the preceding Figures) and a rigidly mounted gearbox 36 / 136 / 236 when, for example, the support frame 50 undergoes bending or twisting during vehicle operation, or, for example, during 'shock accelerations' if, for example, a locomotive hits a string of railway cars at too high of a speed (e.g., five miles-per-hour).
  • a resiliently mounted reciprocating internal combustion engine 32 see, e.g., supports 52 and resilient mounts 54 described above in the preceding Figures
  • a rigidly mounted gearbox 36 / 136 / 236 when, for example, the support frame 50 undergoes bending or twisting during vehicle operation, or, for example, during 'shock accelerations' if, for example, a locomotive hits a string
  • the torsionally resilient misalignment coupling 102 may include a "Gesilco Butterfly" misalignment coupling with an integrated oil-filled steel spring coupling commercially available from GEISLINGER®, which has a high torque capacity in a relatively compact length.
  • the torsionally resilient misalignment coupling 102 is not limited to a GESILCO® misalignment coupling and that any type of coupling accommodating at least some relative motion may be used as an alternative to the GESILCO® misalignment coupling; a rubber or silicone torsionally resilient misalignment coupling 100 may be commercially available from VULKAN® and sold under the trade-name RATO®, or, alternatively, a rubber or silicone torsionally resilient misalignment coupling 100 may be commercially available from CENT A® and sold under the trade-name CENT AX®.
  • FIG. 7 a portion of a power generation system is shown generally at 1420 in accordance with an embodiment of the invention.
  • the portion of the power generation system 1420 shown in Figure 7 includes an exemplary second connecting structure 14e that connects an electrical converting device 34 to a gearbox 36 / 136 / 236.
  • the second connecting structure 14e will be described in greater detail in the following disclosure whereas the electrical converting device 34 and the gearbox 36 / 136 / 236 have been described in the preceding Figures.
  • the second connecting structure 14e may be utilized in place of the second connecting structure 14a of the power generation systems 220, 320, 620, 720, 1020 described above at Figures 1C, ID, 2C, 2D, 3C.
  • the power generation system 1420 also includes a reciprocating internal combustion engine (not shown but seen at 32 in the preceding Figures).
  • the reciprocating internal combustion engine may be, for example, a diesel engine).
  • the power generation system 1420 also includes the gearbox 36 / 136 / 236 and the electrical converting device 34 (i.e., a device that converts mechanical energy at an input 66 into electrical energy at an output (not shown but seen at 68 in the preceding Figures).
  • the electrical converting device 34 may include, for example, a traction alternator or a traction generator.
  • the power generation system 1420 also includes a first connecting structure (not shown but seen at 12b, 12c or 12e in the preceding Figures) that connects the reciprocating internal combustion engine to the gearbox 36 / 136 / 236.
  • the power generation system 1420 also includes the second connecting structure 14e.
  • the reciprocating internal combustion engine, electrical converting device 34 and gearbox 36 / 136 / 236 are mounted to a support frame 50 of an industrial vehicle (e.g., a locomotive, marine vessel or the like).
  • the gearbox 36 / 136 / 236 is resiliently mounted to the support frame 50.
  • the electrical converting device 34 is an originally-installed component, and, the reciprocating internal combustion engine is not an originally-installed component, but rather, a replacement component that may be "cleaner" and/or defined by an increased efficiency when compared to an originally-installed reciprocating internal combustion engine (not shown) that has been removed from the support frame 50.
  • the electrical converting device 34 may be an identical replacement (e.g., the same model type or number) for an originally- installed electrical converting device, where the originally-installed electrical converting device is damaged or is otherwise no longer able to function reliably.
  • the electrical converting device 34 may be mechanically equivalent to the originally-installed electrical converting device, where this mechanical equivalence includes the electrical converting device 34 having an electrical converting device input that is designed to connect directly with the output of the originally-installed reciprocating internal combustion engine, and having a maximum permitted rotating speed that is within, for example, 20% of the maximum permitted rotating speed of the originally-installed reciprocating internal combustion engine.
  • the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14e may be introduced in order to permit the reciprocating internal combustion engine to functionally cooperate with the electrical converting device 34. Accordingly, a combination of one or more of the reciprocating internal combustion engine, the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14e may be referred to as a repowered portion 10 ⁇ of the power generation system 1420.
  • the second connecting structure 14e is a mechanical connection that permits the gearbox 36 / 136 / 236 to transmit power originating from the reciprocating internal combustion engine to the electrical converting device 34.
  • the second connecting structure 14e may include a torsionally resilient misalignment coupling 100 for connecting a gearbox output 64 (e.g. a gearbox output shaft) of the gearbox 36 / 136 / 236 to an input 66 (i.e., a driven end of a rotor) of the electrical converting device 34.
  • the torsionally resilient misalignment coupling 100 is an integrated structural component including both of the misalignment coupling 42 as described above in Figure 4 and the torsionally resilient coupling 98 as described above in Figure 4.
  • a first end of the torsionally resilient misalignment coupling 100 is connected to the gearbox output 64.
  • a second end of the torsionally resilient misalignment coupling 100 is connected to the input 66 of the electrical converting device 34.
  • the torsionally resilient misalignment coupling 100 may be functionally utilized as a "rotating shock absorber" that damps torque pulses / vibrations produced by the reciprocating internal combustion engine in order to provide a smoother torque profile to driven equipment (e.g., the electrical converting device 34).
  • the torsionally resilient misalignment coupling 100 may also functionally transmit the rotation of the gearbox output 64 of the gearbox 36 / 136 / 236 to the input 66 of the electrical converting device 34. Further, the torsionally resilient misalignment coupling 100 may be functionally used to accommodate relative motion occurring between the resiliently mounted gearbox 36 / 136 / 236 and the rigidly mounted electrical converting device 34 when, for example, the support frame 50 undergoes bending or twisting during vehicle operation, or, for example, during 'shock accelerations' if, for example, a locomotive hits a string of railway cars at too high of a speed (e.g., five miles-per-hour).
  • a speed e.g., five miles-per-hour
  • the torsionally resilient misalignment coupling 100 may include a "Gesilco Butterfly" misalignment coupling with an integrated oil-filled steel spring coupling commercially available from GEISLESTGER®; as a result, the torsionally resilient misalignment coupling 100 may be characterized to have a high torque capacity and a high misalignment capacity in a relatively compact length.
  • the torsionally resilient misalignment coupling 100 is not limited to a GESILCO® butterfly-style misalignment coupling, and, as such, any type of coupling that possesses the characteristics discussed above may be used as an alternative to the GESILCO® butterfly-style misalignment coupling; a rubber or silicone torsionally resilient misalignment coupling 100 may be commercially available from VULKAN® and sold under the trade-name RATO®, or, alternatively, a rubber or silicone torsionally resilient misalignment coupling 100 may be commercially available from CENT A® and sold under the trade-name CENT AX®.
  • the second connecting structure 14e may also include a support 44 that supports the driven end or input 66 of the rotor of the electrical converting device 34.
  • the support 44 may functionally align the rotor of the electrical converting device 34 with the stator of the electrical converting device 34.
  • the support 44 is rigidly mounted to the support frame 50.
  • the support 44 may be included in the design of the second connecting structure 14e if, for example, the electrical converting device 34 is characterized to include a "single bearing" structure that is intended to support only the free end of the rotor of the electrical converting device 34. As such, the support 44 may be included in order to function as a "second bearing” that assists the electrical converting device 34 in the supporting the driven end or input 66 of its rotor.
  • the support 44 may be omitted from the design of the second connecting structure 14e due to the fact that the electrical converting device 34 includes first and second bearings that support the driven end or input 66 of the rotor as well as the free end of the rotor.
  • FIG. 8 a portion of a power generation system is shown generally at 1520 in accordance with an embodiment of the invention.
  • the portion of the power generation system 1520 shown in Figure 8 includes an exemplary second connecting structure 14f that connects an electrical converting device 34 to a gearbox 36 / 136 / 236.
  • the second connecting structure 14f will be described in greater detail in the following disclosure whereas the electrical converting device 34 and the gearbox 36 / 136 / 236 have been described in the preceding Figures.
  • the second connecting structure 14f may be utilized in place of the second connecting structure 14a of the power generation systems 20, 420, 820, 1120, 1220 described above at Figures 1 A, 2A, 3 A, 4, 5.
  • the power generation system 1520 also includes a reciprocating internal combustion engine (not shown but seen at 32 in the preceding Figures).
  • the reciprocating internal combustion engine may be, for example, a diesel engine.
  • the power generation system 1520 also includes the gearbox 36 / 136 / 236 and the electrical converting device 34 (i.e., a device that converts mechanical energy at an input 66 into electrical energy at an output (not shown but seen at 68 in the preceding Figures).
  • the electrical converting device 34 may include, for example, a traction alternator or a traction generator.
  • the power generation system 1520 also includes a first connecting structure (not shown but seen at 12a or 12d in the preceding Figures) that connects the reciprocating internal combustion engine to the gearbox 36 / 136 / 236.
  • the power generation system 1520 also includes the second connecting structure 14f.
  • the reciprocating internal combustion engine, electrical converting device 34 and gearbox 36 / 136 / 236 are mounted to a support frame 50 of an industrial vehicle (e.g., a locomotive, marine vessel or the like).
  • the gearbox 36 / 136 / 236 is rigidly mounted to the support frame 50.
  • the electrical converting device 34 is an originally-installed component, and, the reciprocating internal combustion engine is not an originally-installed component, but rather, a replacement component that may be "cleaner" and/or defined by an increased efficiency when compared to an originally-installed reciprocating internal combustion engine (not shown) that has been removed from the support frame 50.
  • the electrical converting device 34 may be an identical replacement (e.g., the same model type or number) for an originally- installed electrical converting device, where the originally-installed electrical converting device is damaged or is otherwise no longer able to function reliably.
  • the electrical converting device 34 may be mechanically equivalent to the originally-installed electrical converting device, where this mechanical equivalence includes the electrical converting device 34 having an electrical converting device input that is designed to connect directly with the output of the originally-installed reciprocating internal combustion engine, and having a maximum permitted rotating speed that is within, for example, 20% of the maximum permitted rotating speed of the originally-installed reciprocating internal combustion engine.
  • the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14f may be introduced in order to permit the reciprocating internal combustion engine to functionally cooperate with the electrical converting device 34. Accordingly, a combination of one or more of the reciprocating internal combustion engine, the gearbox 36 / 136 / 236, the first connecting structure and the second connecting structure 14f may be referred to as a repowered portion lOp of the power generation system 1520.
  • the second connecting structure 14f is a mechanical connection that permits the gearbox 36 / 136 / 236 to transmit power originating from the reciprocating internal combustion engine to the electrical converting device 34.
  • the second connecting structure 14f may include a misalignment coupling 42 and a torsionally resilient coupling 98 for connecting a gearbox output 64 (e.g. a gearbox output shaft) of the gearbox 36 / 136 / 236 to an input 66 (i.e., a driven end of a rotor) of the electrical converting device 34.
  • a first end of the misalignment coupling 42 is connected to the gearbox output 64, and, a first end of the torsionally resilient coupling 98 is connected to a second end of the misalignment coupling 42.
  • a second end of the torsionally resilient coupling 98 is connected to the input 66 of the electrical converting device 34.
  • the torsionally resilient coupling 98 may be functionally utilized as a "rotating shock absorber” that damps torque pulses / vibrations produced by the reciprocating internal combustion engine in order to provide a smoother torque profile to driven equipment (e.g., the electrical converting device 34).
  • the torsionally resilient coupling 98 could be utilized instead of, or, in addition to, for example, a torsionally resilient coupling (see, e.g., 46 in Figure 1 A) that is incorporated in the first connecting structure (see, e.g., 12a in Figure 1 A); the choice of whether to include the torsionally resilient coupling 98 in the second connecting structure 14f alone, or, alternatively, in both of the first connecting structure and the second connecting structure 14f would depend on technical characteristics of a particular repowered portion (such as, e.g., the choice of replacement engine being used, the choice of gearbox 36 / 136 / 236 being used, and the model of electrical converting device 34 being used, or the like).
  • the torsionally resilient coupling 98 may be an all-steel coupling that is filled with oil to provide damping.
  • the torsionally resilient coupling 98 may be commercially available from GEISLINGER®.
  • the torsionally resilient coupling 98 is not limited to an all-steel structure, and, as such, the torsionally resilient coupling 98 may include a rubber or silicone material; a rubber or silicone torsionally resilient coupling 98 may be commercially available from
  • VULKAN® and sold under the trade-name VULASTIK®, or, alternatively, a rubber or silicone torsionally resilient coupling 98 may be commercially available from CENT A® and sold under the trade-names CENTAFLEX® or CENTAMAX®.
  • the misalignment coupling 42 may functionally transmit the rotation of the gearbox output 64 of the gearbox 36 / 136 / 236 to the input 66 of the electrical converting device 34. Further, the misalignment coupling 42 may be functionally used to accommodate relative motion occurring between the rigidly mounted gearbox 36 / 136 / 236 and the rigidly mounted electrical converting device 34 when the support frame 50 undergoes bending or twisting during vehicle operation.
  • the misalignment coupling 42 may include a "Gesilco Butterfly" misalignment coupling commercially available from GEISLINGER®; as a result, the misalignment coupling 42 may be characterized to have a high torque capacity and a high misalignment capacity in a relatively compact length as well as being virtually maintenance-free due to a carbon-fiber construction.
  • the misalignment coupling 42 is not limited to a
  • the second connecting structure 14f may also include a support 44 that supports the driven end or input 66 of the rotor of the electrical converting device 34.
  • the support 44 may functionally align the rotor of the electrical converting device 34 with the stator of the electrical converting device 34.
  • the support 44 is rigidly mounted to the support frame 50.
  • the support 44 may be included in the design of the second connecting structure 14f if, for example, the electrical converting device 34 is characterized to include a "single bearing" structure that is intended to support only the free end of the rotor of the electrical converting device 34. As such, the support 44 may be included in order to function as a "second bearing” that assists the electrical converting device 34 in the supporting the driven end or input 66 of its rotor.
  • the support 44 may be omitted from the design of the second connecting structure 14f due to the fact that the electrical converting device 34 includes first and second bearings that support the driven end or input 66 of the rotor as well as the free end of the rotor.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention porte sur un système de génération de puissance. Ledit système de génération de puissance comprend un dispositif de conversion électrique et une partie rééquipée connectée au dispositif de conversion électrique. La partie rééquipée comprend un moteur alternatif à combustion interne et une boîte de vitesses. Le moteur alternatif à combustion interne est accouplé à la boîte de vitesses par une première structure d'accouplement. La boîte de vitesses est accouplée au dispositif de conversion électrique par une seconde structure d'accouplement.
EP16735349.9A 2015-01-06 2016-01-06 Système de génération de puissance et procédé d'assemblage associé Withdrawn EP3242998A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/590,698 US9550412B2 (en) 2009-05-21 2015-01-06 Power generation system and method for assembling the same
PCT/US2016/012319 WO2016112094A1 (fr) 2015-01-06 2016-01-06 Système de génération de puissance et procédé d'assemblage associé

Publications (2)

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EP3242998A1 true EP3242998A1 (fr) 2017-11-15
EP3242998A4 EP3242998A4 (fr) 2018-08-22

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WO (1) WO2016112094A1 (fr)

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Publication number Priority date Publication date Assignee Title
US10305350B2 (en) * 2016-11-18 2019-05-28 Cummins Power Generation Limited Generator set integrated gearbox
US11137056B2 (en) * 2018-04-13 2021-10-05 Transportation Ip Holdings, Llc Gearbox assembly
US10934931B2 (en) 2018-06-22 2021-03-02 Cummins Power Generation Limited Integrated epicyclic gearbox and alternator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030183467A1 (en) * 2002-03-28 2003-10-02 Ford Global Technologies, Inc. Placement of an auxilliary mass damper to eliminate torsional resonances in driving range in a parallel-series hybrid system
US7108095B1 (en) * 2002-11-13 2006-09-19 Jerry Washington System and method for generating power
EP1676023B1 (fr) * 2003-10-06 2018-04-04 PowerSys, LLC Systemes et procedes de generation de puissance
US20070049379A1 (en) * 2005-08-30 2007-03-01 Simmonds Precision Products, Inc. Flexible coupling device
US8167062B2 (en) * 2009-05-21 2012-05-01 Tognum America Inc. Power generation system and method for assembling the same

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EP3242998A4 (fr) 2018-08-22

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