Battery charging assembly for use on a locomotive

• US 20060214626A1
• Filed: 03/25/2005
• Published: 09/28/2006
• Est. Priority Date: 03/25/2005
• Status: Abandoned Application

• Current Assignee: KIM Hotstart Mfg. Co.
• Original Assignee: KIM Hotstart Mfg. Co.
• Inventors: Fricke, Duane G., Abbott, Michael T., Nilson, Lee A.
• Application Number:
  US11/090,530
• Publication Number:
  US 20060214626A1
• Time in Patent Office: Days
• US Class Current: 320/104
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 50/10 using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 30/00 Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

A battery charging assembly for use on a locomotive is described and which includes a diesel engine having a mechanical power output of less than about 50 horsepower; an oil tank coupled in fluid flowing relation relative to the diesel engine and which contains a volume of oil which facilitates the operation of the diesel engine for a time period which is at least equal to a maintenance interval of the locomotive; an alternator coupled to the mechanical output of the diesel engine and which produces an electrical power output to charge a plurality of batteries which are mounted on the locomotive; and an air compressor coupled in fluid flowing relation to the locomotives air system.

Claims

1. A battery charging assembly for use on a locomotive, comprising:

a diesel engine having a mechanical power output of less than about 50 horsepower;

an oil tank coupled in fluid flowing relation relative to the diesel engine and which contains a volume of oil which facilitates the operation of the diesel engine for a time period which is at least equal to a maintenance interval for the locomotive; and

an alternator coupled to the mechanical output of the diesel engine, and which produces an electrical power output to charge a plurality of batteries which are mounted on the locomotive.

2. A battery charging assembly as claimed in claim 1, and wherein the locomotive is a remotely controlled locomotive which is propelled across the face of the earth by an electrically actuated traction motor, and further is operably controlled by an electrically actuated control assembly which is mounted on the remotely controlled locomotive, and wherein the plurality of batteries mounted on the locomotive provide a DC power output which is supplied to, and subsequently energizes the traction motor so as to drive the remotely controlled locomotive across the face of the earth, and further energizes the electrically actuated control assembly, and wherein the electrical power output of the alternator is selectively alternatively supplied to the electrically actuated control assembly or the plurality of batteries.

3. A battery charging assembly as claimed in claim 2, and further comprising:

a selectively engageable clutch which is disposed in force receiving relation relative to the mechanical power output of the diesel engine; and

an air compressor which mechanically cooperates with the clutch, and which is selectively mechanically coupled to the diesel engine by the clutch, and wherein the air compressor, when actuated by the diesel engine, delivers a source of compressed air to the remotely controlled locomotive for use in braking the remotely controlled locomotive when it is being propelled across the face of the earth.

4. A battery charging assembly as claimed in claim 3, and further comprising:

a programmable controller which is coupled in controlling relation relative to each of the diesel motor, and clutch; and

wherein the programmable controller is further coupled in electrical charge sensing relation relative to the plurality of batteries which are mounted on the remotely controlled locomotive, and is also electrically coupled with the electrically actuated control assembly.

5. A battery charging assembly as claimed in claim 1, and wherein the oil tank has an oil storage capacity of greater than about 15 gallons of oil.

6. A battery charging assembly as claimed in claim 1, and wherein the time period which is at least equal to the maintenance interval of the locomotive is greater than about 92 days.

7. A battery charging assembly as claimed in claim 1, and further comprising:

a source of diesel fuel borne by the locomotive; and

a fuel line coupling the source of diesel fuel to the diesel engine.

8. A battery charging assembly as claimed in claim 1, and wherein the oil tank has a top and a bottom surface, and wherein the bottom surface of the tank is mounted on the locomotive, and wherein the diesel engine is mounted on the top surface of the oil tank.

9. A battery charging assembly as claimed in claim 8, and wherein the oil tank defines a cavity which receives a source of oil which is supplied to the diesel engine during operation, and wherein the source of oil is withdrawn from the oil tank, circulated in the diesel engine and returned to the tank, and wherein the oil tank defines a passageway which receives the oil which is being returned to the oil tank and which directs the oil along a path of travel which facilitates the mixing of the oil in the oil tank.

10. A battery charging assembly as claimed in claim 1, and further comprising:

a starting battery having an amount of stored electrical power and which is electrically coupled with the diesel engine;

a starter which is electrically coupled with the starting battery; and

a programmable controller coupled in charge sensing relation relative to the plurality of batteries which are mounted on the locomotive, and in controlling relation relative to the starter, and wherein the programmable controller energizes the starter with the electrical power which is provided by the starting battery when the electrical charge of the plurality of batteries which are mounted on the locomotive decreases below a first value of less than about 65 volts, and further turns off the diesel engine when the electrical charging current provided to the plurality of batteries which are mounted on the locomotive is less than about a second value of 15 Amps.

11. A battery charging assembly as claimed in claim 10, and further comprising:

a DC to DC converter which is electrically coupled with the alternator and which supplies a charging current which is supplied to the starting battery.

12. A battery charging assembly as claimed in claim 10, and wherein the programmable controller is coupled in controlling relation relative to the diesel engine, and wherein the diesel engine has at least two engine speeds, and wherein the programmable controller causes the diesel motor to operate at a first high engine speed when the charging current provided to the plurality of batteries which are mounted on the locomotive is greater than about 30 Amps, and to operate at a second, low engine speed when the electrical charging current provided to the plurality of batteries which are mounted on the locomotive is less than about 30 Amps.

13. A battery charging assembly as claimed in claim 1, and further comprising:

a cooling radiator coupled in fluid flowing relation relative to the diesel engine; and

which further radiates heat energy; and

an air movement assembly positioned adjacent to the cooling radiator, and which provides a stream of cooling air to the cooling radiator, and wherein the stream of cooling air is heated by the cooling radiator, and wherein the heated air stream is supplied to the locomotive.

14. A battery charging assembly as claimed in claim 1, and further comprising:

an electrical heater mounted on the locomotive and positioned remotely relative to the battery charging assembly, and wherein the electrical heater is energized by the electrical power output of the battery charging assembly.

15. A battery charging assembly as claimed in claim 1, and wherein the alternator supplies an electrical power output of less than about 74 volts DC to charge the plurality of batteries which are mounted on the locomotive.

16. A battery charging assembly as claimed in claim 1, and wherein the battery charging assembly weighs less than about 1300 pounds, and occupies a space of less than about 35 cubic feet.

17. A battery charging assembly for use on a locomotive, comprising:

an oil tank which is mounted on the locomotive and which has a top surface, and which further encloses a volume of oil;

a diesel engine of less than about 50 horsepower, and which is mounted on the top surface of the oil tank, and which is further coupled in fluid flowing relation relative to the oil tank, and wherein the diesel engine, when actuated, produces a mechanical power output, and is further operable to withdraw oil from oil tank, and return the oil to the oil tank following the circulation of the oil in the diesel engine;

a selectively engageable clutch which is mounted in force receiving relation relative to the mechanical power output of the diesel engine;

an air compressor mounted on the top surface of the oil tank and which mechanically cooperates with the clutch, and wherein the clutch, when engaged, is operable to deliver mechanical energy from the diesel engine to actuate the air compressor, and wherein the air compressor, when actuated, provides a source of compressed air which is delivered to the locomotive;

an alternator, mounted on the oil tank, and which is coupled in force receiving relation relative to the mechanical power output of the diesel engine, and wherein the alternator, when actuated by the diesel engine, provides a DC electrical power output to charge a plurality of batteries which are mounted on the locomotive; and

a programmable controller which is coupled in controlling relation relative to the diesel engine, and the clutch, and which further controls, at least in part, the operation of the alternator and the air compressor.

18. A battery charging assembly as claimed in claim 17, and wherein the plurality of batteries which are mounted on the locomotive provide electrical power to propel the locomotive, and wherein the source of compressed air is utilized by the locomotive for braking and other purposes.

19. A battery charging assembly as claimed in claim 17, and wherein the programmable controller is coupled in electrical charge sensing relation relative to the plurality of batteries which are mounted on the locomotive, and wherein the programmable controller upon sensing a battery charge of a first value of less than about 65 volts starts, and then operates the diesel engine at a first high engine speed, and further, operates the diesel engine at a second slow engine speed when the electrical charging current provided to the plurality of batteries is less than about 30 Amps, and wherein the programmable controller shuts the diesel engine off when the electrical charging current provided to the plurality of batteries which are mounted on the locomotive is less than about 15 Amps.

20. A battery charging assembly as claimed in claim 17, and wherein the locomotive has a source of diesel fuel, and wherein the diesel engine is coupled in fluid flowing relation relative to the source of diesel fuel, and wherein the locomotive has a maintenance interval of at least about 92 days, and wherein the volume of the oil in the oil tank allows operation of the diesel engine for a time period which is at least equal to the maintenance interval of the locomotive.

21. A battery charging assembly as claimed in claim 17, and wherein the volume of the oil enclosed in the oil tank is greater than about 15 gallons, and wherein the oil tank defines an internal cavity which has opposite, first and second ends, and wherein an oil diffusing baffle is mounted in the cavity of the oil tank, and is operable to direct oil which is being returned to the oil tank by the diesel engine along a path of travel so that the returned oil is delivered into the cavity at the first and/or second ends and facilitates the mixing thereof.

22. A battery charging assembly as claimed in claim 17, and further comprising:

a cooling radiator coupled in fluid flowing relation relative to the die sel engine; and

a heater borne by the locomotive, and which is electrically coupled to the DC electrical power output of the battery charging assembly, and which when energized provides a load for the diesel engine.

23. A battery charging assembly as claimed in claim 17, and further comprising:

a cooling radiator coupled in fluid flowing relation relative to the diesel engine and which radiates heat energy which is generated by the operation of the diesel engine; and

a fan positioned proximate to the cooling radiator, and which directs a stream of air into contact with the cooling radiator, and wherein the stream of air is heated following contact with the cooling radiator, and wherein the heated air stream is provided to the locomotive.

24. A battery charging assembly as claimed in claim 17, and wherein the locomotive is a remotely controlled locomotive, and wherein an electrically actuated control assembly is mounted on the locomotive, and is controllably coupled thereto, and wherein the programmable controller is operable to redirect the DC electrical power output which is typically provided by the alternator to the plurality of batteries, to the electrically actuated control assembly, when the plurality of batteries are being utilized to provide electrical power to propel the remotely controlled locomotive, and to further selectively actuate the air compressor to provide the source of compressed air which is utilized by the remotely controlled locomotive for braking, and other purposes following the redirection of the alternator power.

25. A battery charging assembly as claimed in claim 17, and wherein the DC electrical power output of the alternator is less than about 74 volts DC.

26. A battery charging assembly as claimed in claim 17, and further comprising:

a vibration isolating mounting fixture mounted on the locomotive and which positions the oil tank in spaced relation relative to the locomotive.

27. A battery charging assembly as claimed in claim 17, and further comprising:

a starting battery which provides stored electrical power for starting the diesel engine; and

a DC to DC converter which is electrically coupled with the alternator and which provides a charging current for maintaining the electrical charge of the starting battery.

28. A battery charging assembly for use on a locomotive, comprising:

an oil tank defined by a top and bottom surface, and a sidewall which extends between the top and bottom surfaces, and wherein the oil tank is mounted on, and disposed in spaced relation relative to, the locomotive, and wherein the oil tank defines an internal cavity having opposite first and second ends, and which receives and stores a volume of oil which will facilitate the operation of the battery charging assembly for a time period of at least 92 days, and wherein an oil diffusing baffle is positioned within the cavity of the oil tank and is disposed in spaced relation relative to the top surface thereof, and wherein an aperture is formed in the top surface and which facilitates access to the cavity;

a diesel engine of less than about 50 horsepower and which is mounted on the top surface of the oil tank, and which is further coupled in fluid flowing relation relative to the oil tank by way of the aperture which is formed in the top surface, and wherein the diesel engine, when actuated, has a mechanical power output, and further withdraws oil from the oil tank, and then, following circulation in the diesel engine, returns the previously withdrawn oil back into the oil tank and onto the oil diffusing baffle, and wherein the oil diffusing baffle directs the oil along a path of travel and delivers the oil to a location which is near the opposite ends of the cavity to facilitate the mixing of the oil within the cavity;

a fuel line coupled to the diesel engine and having a distal end which is received within a diesel fuel tank, and which is mounted on the locomotive, and which is further positioned remotely relative to the diesel engine, and wherein the diesel engine withdraws a source of diesel fuel from the diesel fuel tank and through the fuel line for consumption;

a starting battery borne by the top surface of the oil tank, and which provides an electrical current;

a starting motor coupled in force transmitting relation relative to the diesel motor and which is selectively energized by the electrical current which is provided by the starting battery, and wherein the starting motor, when energized renders the diesel engine operational;

a cooling radiator coupled in fluid flowing relation relative to the diesel engine, and which cools the diesel motor after the diesel motor has been started;

a selectively engageable clutch which is mounted in force receiving relation relative to the mechanical power output of the diesel engine;

an alternator which is coupled in force receiving relation relative to the mechanical power output of the diesel engine, and wherein the alternator, when actuated, produces an electrical power output of less than about 74 volts DC which is utilized, at least in part, to charge a plurality of batteries which are mounted on, and subsequently utilized by the locomotive, to provide electrical power for propulsion of the locomotive;

a DC to DC converter which is electrically coupled to the DC electrical power output of the alternator, and which provides a charging current for maintaining the electrical charge of the starting battery;

an air compressor borne by the top surface of the oil tank and which is disposed in selective force receiving relation relative to the diesel engine by the clutch, and wherein the air compressor, when actuated, provides a source of compressed air which is delivered to the locomotive and selectively utilized by the locomotive for braking and other purposes; and

a programmable controller which is coupled in electrical charge sensing relation relative to the plurality of batteries which are mounted on the locomotive, and further disposed in controlling relation relative to the diesel engine, the starting motor for the diesel motor, the alternator, the air compressor and the selectively engageable clutch.

29. A battery charging assembly as claimed in claim 28, and wherein the fuel line has a first end which is coupled to the diesel engine, and an opposite second end, and wherein a fuel passageway is defined between the first and second ends, and wherein the second end of the fuel line is received in the remotely positioned diesel fuel tank, and wherein the distal end of the fuel line is defined by a sidewall which has a plurality of apertures formed therein.

30. A battery charging assembly as claimed in claim 28, and wherein a plurality of vibration isolating mounting fixtures are mounted on the locomotive, and which position the oil tank in spaced relation relative thereto.

31. A battery charging assembly as claimed in claim 28, and wherein the programmable controller upon sensing an electrical charge of less than about 65 volts for the plurality of batteries, causes the starting motor to become energized by the starting battery and which starts the diesel engine, and wherein the diesel engine, once started causes the alternator to deliver the DC electrical power output to increase the electrical charge for the plurality of batteries, and further upon sensing an electrical charging current provided to the plurality of batteries of less than about 15 Amps is operable to stop the delivery of the DC electrical power output of the alternator to the plurality of batteries.

32. A battery charging assembly as claimed in claim 28, and further comprising:

an electrically actuated heater which is borne by the locomotive, and which is selectively electrically coupled with the DC electrical power output of the diesel engine.

33. A battery charging assembly as claimed in claim 32, and wherein the DC electrical power output is provided to the heater for purposes of generating heat which is needed by the locomotive.

34. A battery charging assembly as claimed in claim 32, and wherein the DC electrical power output is provided to the heater to increase the electrical load of the alternator and improve the performance of the diesel engine.

35. A battery charging assembly as claimed in claim 28, and wherein the programmable controller is operable to control the speed of operation of the diesel motor based, at least in part, upon the electrical charge of the plurality of batteries as sensed by the programmable controller.

36. A battery charging assembly as claimed in claim 28, and wherein the locomotive is a remotely controllable locomotive, and wherein an electrically actuated control assembly is mounted on the remotely controllable locomotive and disposed in controlling relation thereto, and wherein the plurality of batteries store electrical power which is utilized in propelling the remotely controlled locomotive, and wherein the programmable controller causes the DC electrical power output of the alternator to be delivered to the electrically actuated control assembly when electrical power is being delivered from the plurality of batteries to propel the remotely controlled locomotive, and wherein the programmable controller substantially deactivates the alternator when the air compressor is selectively activated to provide the source of compressed air which is selectively utilized for braking the remotely controlled locomotive and other purposes.

37. A battery charging assembly as claimed in claim 28 and further comprising:

a fan which is proximally positioned relative to the cooling radiator, and wherein the fan delivers a stream of air to the cooling radiator, and wherein the stream of air is heated by the cooling radiator and is subsequently delivered to the locomotive.