US1402875A - Power-developing apparatus - Google Patents
Power-developing apparatus Download PDFInfo
- Publication number
- US1402875A US1402875A US316242A US31624219A US1402875A US 1402875 A US1402875 A US 1402875A US 316242 A US316242 A US 316242A US 31624219 A US31624219 A US 31624219A US 1402875 A US1402875 A US 1402875A
- Authority
- US
- United States
- Prior art keywords
- engine
- generator
- armature
- speed
- engines
- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 2
- 241001527902 Aratus Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
- B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/24—Use of propulsion power plant or units on vessels the vessels being small craft, e.g. racing boats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19023—Plural power paths to and/or from gearing
- Y10T74/19126—Plural drivers plural driven
Definitions
- This invention relatesin general to Diesel engine installations and particularly to a new and improved marine power developing ap aratus.
- . iesel engines operate most eificientlv at a certain predetermined speed and load. If either of these is varied, to any considerable extent, a decrease in efficiency usually results.
- the engines ar ordinarily either ared or directly connected to the propel er shafts and consequently the speed of the ship can only be varied by varying the speed of the engines. For example, at cruisin speed the engines operate under a relativeFy light load and at a relatively slow speed, consequently if the are designed to be most efiicient under fu 1 speed conditions th loss in efiiciency due to thp operation at cruising speed is objectionab e.
- An object of my invention is to produce.
- Fig. 2 is a diagrammatic plan. view of a. marine power developing installation embodying the features of my invention.
- Fig. 3 is a diagrammatic sectional view of a part of the apparatus illustrated in Fig. 1.
- Fig. 1 I have diagrammatically illustrated two axially aligned Diesel engines 5 and 6, the engine 6 being larger than the engine 5. I have shown an electric generator between the two engines.
- the generator includes a rotatable armature 8 and a Fig. 1.
- the field structure 9 is operatively coupled to the ngine 5 by means of the shaft 10 and a clutch 11, and the armature 8 is illustrated as coupled to the engine 6 by means of a shaft 12 and a clutch 13.
- the outer end of the shaft 10 of the field structure is mounted in a bearing 14 formed within the armature structur 8.
- the field structure 9 is electrically connected to the exciter 15 by means of suitable slip rings 16 and wiring 17.
- each motor 20 is operatively connected to a propeller shaft 22 which drives the propellers 23.
- a third propeller shaft 24 which is adapted to'be coupled to the engine 6, by means of a detachable coupling 25".
- a slidable clutch member 24 is feathered on the field structure shaft 10 and is provided with lugs 25 on both sides.
- the lugs 25 are adapted to engage lugs 26 on the stationary casing 27 of the engine 5, and to thereby hold stationary the shaft 10 and hence the field structure 9.
- the lugs 25 on the opposite side of the member 24 are adapted to engage lugs 28 on a flange 29 which, as shown, is integrally formed with the crank shaft 30 of the e 'ne 5.
- the clutch 13 between the engine 6 and the armature structure 8 may be of similar constructifin, so that the armature 8 may also be either locked in place or operatively connected to the crank shaft of the engine.
- the engines 5 and 6 When operating under normal full load conditions the engines 5 and 6 are driven in opposite directions and are connected respectively to the armature 8 and the field structure 9 by means of the clutches 11 and 13.
- the exciter 15 delivers current to the one or both of the engines 5 and 6, or by means of suitable electrical controls.
- the engine 6 is designed so that it is capable of developing about twice the power of the engine 5.
- the fact that these engines are coupled to the same generator makes it necessary for the torque developed by one engine to be substantially equal to that developed by the other, consequently the normal speed of the engine 6 must be approximatelytwice that of the engine 5 to accomplish the desired result.
- the engine 6 may be stopped and the clutch 13 shifted so as to lock the armature structure 8 in place.
- the engine 5 may then be operated at normal speed and normal load, but as the relative motion of the armature structure 8 and the field structure 9 is greatly reduced, the frequency and hence the normal speed of the motors 20 will be correspondingly reduced.
- the generator 7 and the motors 20 may be of the direct current type, although the drawings illustrate a simple and effective alternating current arrangement.
- a plu- -rality of engine and generator sets such as that illustrated may be provided, in which case greater flexibility may be obtained for the installation, that is, the number of engines in operation may be more accurately proportioned to the load on the system so as to maintain the highest efficiency in the engines in actual operation.
- a double rotation generator an internal combustion engine detachably coupled to one of the relatively rotatable elements of said generator, a second engine of materially greater power detachably coupled to the oppositely rotating element of propeller driven the generator, a motor electricallv connected to the generator, a propeller shaft driven by the motor and means for holding one or the other of the oppositely rotating elements of the generator stationary.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
E. W. McCALLISTER. POWER DEVELOPING APPARATUS. APPLICATION FILED'AUG 8.1919. RENEWED JUNE 18, I921.
1,402,875, Patented Jan. 10, 1922.
EXCITER IN V EN TOR.
UNITED STATES PATENT OFFICE.
EDGAR W. MCCALLISTEB, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO WESTING- HOUSE ELECTRIC & MANUFACTURING 00., A CORPORATION OF PENNSYLVANIA.
POWER-DEVELOPIN G APPARATUS.
Specification of Letters Patent.
Patented Jan. 10, 1922.
Application filed August 8, 1919, Serial No. 316,242. Renewed June 18, 1921. Serial No. 478,721.
To all whom it may concem:
Be it known that I, EDGAR W. MoCAL- LISTER,-a. citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have made a new and useful invention in Power- Developing Apparatus, of which the following is a specification.
This invention relatesin general to Diesel engine installations and particularly to a new and improved marine power developing ap aratus.
. iesel engines operate most eificientlv at a certain predetermined speed and load. If either of these is varied, to any considerable extent, a decrease in efficiency usually results. In marine installations the engines ar ordinarily either ared or directly connected to the propel er shafts and consequently the speed of the ship can only be varied by varying the speed of the engines. For example, at cruisin speed the engines operate under a relativeFy light load and at a relatively slow speed, consequently if the are designed to be most efiicient under fu 1 speed conditions th loss in efiiciency due to thp operation at cruising speed is objectionab e.
An object of my invention is to produce.
- stallation embodying my invention, a part of the apparatus being shown in section.
Fig. 2 is a diagrammatic plan. view of a. marine power developing installation embodying the features of my invention.
Fig. 3 is a diagrammatic sectional view of a part of the apparatus illustrated in Fig. 1.
In Fig. 1, I have diagrammatically illustrated two axially aligned Diesel engines 5 and 6, the engine 6 being larger than the engine 5. I have shown an electric generator between the two engines. The generator includes a rotatable armature 8 and a Fig. 1.
As illustrated in Fig. 1, the field structure 9 is electrically connected to the exciter 15 by means of suitable slip rings 16 and wiring 17. The current generated in the arma- Fig. 2.
n Fig. 2, I have shown such an installation as applied to a shi 21; the same reference numerals are ap ied to like parts in the two views. As il ustrated, each motor 20 is operatively connected to a propeller shaft 22 which drives the propellers 23. I have shown athird propeller shaft 24 which is adapted to'be coupled to the engine 6, by means of a detachable coupling 25".
In Fig. 3, I hav shown a detailed view of the clutch l1 diagrammatically illustrated in In the construction shown, a slidable clutch member 24 is feathered on the field structure shaft 10 and is provided with lugs 25 on both sides. At one extremity of the travel of the member 24, the lugs 25 are adapted to engage lugs 26 on the stationary casing 27 of the engine 5, and to thereby hold stationary the shaft 10 and hence the field structure 9. At the other extremity of its travel the lugs 25 on the opposite side of the member 24 are adapted to engage lugs 28 on a flange 29 which, as shown, is integrally formed with the crank shaft 30 of the e 'ne 5. It will, of course, b understood that the clutch 13 between the engine 6 and the armature structure 8 may be of similar constructifin, so that the armature 8 may also be either locked in place or operatively connected to the crank shaft of the engine.
When operating under normal full load conditions the engines 5 and 6 are driven in opposite directions and are connected respectively to the armature 8 and the field structure 9 by means of the clutches 11 and 13. The exciter 15 delivers current to the one or both of the engines 5 and 6, or by means of suitable electrical controls. I
The engine 6 is designed so that it is capable of developing about twice the power of the engine 5. The fact that these engines are coupled to the same generator makes it necessary for the torque developed by one engine to be substantially equal to that developed by the other, consequently the normal speed of the engine 6 must be approximatelytwice that of the engine 5 to accomplish the desired result.
At cruising speed the engine 6 may be stopped and the clutch 13 shifted so as to lock the armature structure 8 in place. The engine 5 may then be operated at normal speed and normal load, but as the relative motion of the armature structure 8 and the field structure 9 is greatly reduced, the frequency and hence the normal speed of the motors 20 will be correspondingly reduced.
For intermediate speeds, between cruising and full speed the engine 5 is disconnected from the field-structure 9, the field structure being locked stationary, and the engine 6 is coupled to drive the armature structure 8. With this arrangement three speeds are obtained with high efiiciency since the prime movers operate under normal conditions of load and speed when in operation.
If desired, the generator 7 and the motors 20 may be of the direct current type, although the drawings illustrate a simple and effective alternating current arrangement. A plu- -rality of engine and generator sets such as that illustrated may be provided, in which case greater flexibility may be obtained for the installation, that is, the number of engines in operation may be more accurately proportioned to the load on the system so as to maintain the highest efficiency in the engines in actual operation.
While I have described and illustrated but one embodiment of m invention, it will be apparent to those skili e rious changes, modifications, additions and omissions may be made in the apparatus described and illustrated without departing from the spirit and scope of the invention as set forth by the appended claims.
IVhat I claim is:
1. In combination in propulsion apparatus, two oppositely rotating prime movers, one adapted to operate at a substantially different speed from the other, a double rotation generator, means for detachably connecting one prime mover to the field and the other to the armature of the generator, means for'locking the field or armature stationary, a motor receiving currentfrom said generator, and a propulsion element driven by said motor.
2. In combination in ship propulsion apparatus, two oppositely rotatinginternal combustion engines, one adapted to operate at a substantially different speed from the other, a double rotation electric generator, means for detachably connecting one engine to the field and the other to the armature of the generator, means for locking the field stationary and means for locking the armature stationary, a motor receiving current from said generator and aby said motor.
3. In combination in ship propulsion apparatus, a double rotation generator, an internal combustion engine detachably coupled to one of the relatively rotatable elements of said generator, a second engine of materially greater power detachably coupled to the oppositely rotating element of propeller driven the generator, a motor electricallv connected to the generator, a propeller shaft driven by the motor and means for holding one or the other of the oppositely rotating elements of the generator stationary.
In testimony whereof I have hereunto subscribed my name this 29th day of J ulv, 1919.
EDGAR W. MQCALLISTER.
d in the art that va-'
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US316242A US1402875A (en) | 1919-08-08 | 1919-08-08 | Power-developing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US316242A US1402875A (en) | 1919-08-08 | 1919-08-08 | Power-developing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US1402875A true US1402875A (en) | 1922-01-10 |
Family
ID=23228191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US316242A Expired - Lifetime US1402875A (en) | 1919-08-08 | 1919-08-08 | Power-developing apparatus |
Country Status (1)
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US (1) | US1402875A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2416005A (en) * | 1944-02-16 | 1947-02-18 | Blackstone & Co Ltd | Dynamoelectric machinery and prime movers therefor |
US3601980A (en) * | 1968-08-23 | 1971-08-31 | Mtu Friedrichshafen Gmbh | Power plant for surface skimmers and hydrofoils |
US5749758A (en) * | 1994-02-02 | 1998-05-12 | Den Norske Stats Oljeselskap A.S., I & K Patent | Vessel for production and/or loading/unloading and transport of hydrocarbons from offshore fields, and/or for carrying out well operations |
US6815848B1 (en) * | 1999-09-01 | 2004-11-09 | Alstom Uk Ltd. | Air cooled electrical machine |
US20050134048A1 (en) * | 2003-12-18 | 2005-06-23 | Soqi Kabushiki Kaisha | Generating apparatus |
US20050151374A1 (en) * | 2004-01-10 | 2005-07-14 | Ambrose Donald L. | Multi-function integrated portable power and utility apparatus |
US20050173926A1 (en) * | 2004-02-06 | 2005-08-11 | Soqi Kabushiki Kaisha | Generating apparatus |
EP4230517A1 (en) * | 2022-02-17 | 2023-08-23 | FSG-Nobiskrug Holding GmbH | Cargo ship with multiple propeller drive with improved efficiency |
-
1919
- 1919-08-08 US US316242A patent/US1402875A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2416005A (en) * | 1944-02-16 | 1947-02-18 | Blackstone & Co Ltd | Dynamoelectric machinery and prime movers therefor |
US3601980A (en) * | 1968-08-23 | 1971-08-31 | Mtu Friedrichshafen Gmbh | Power plant for surface skimmers and hydrofoils |
US5749758A (en) * | 1994-02-02 | 1998-05-12 | Den Norske Stats Oljeselskap A.S., I & K Patent | Vessel for production and/or loading/unloading and transport of hydrocarbons from offshore fields, and/or for carrying out well operations |
US6815848B1 (en) * | 1999-09-01 | 2004-11-09 | Alstom Uk Ltd. | Air cooled electrical machine |
US20050134048A1 (en) * | 2003-12-18 | 2005-06-23 | Soqi Kabushiki Kaisha | Generating apparatus |
US20050151374A1 (en) * | 2004-01-10 | 2005-07-14 | Ambrose Donald L. | Multi-function integrated portable power and utility apparatus |
US20050173926A1 (en) * | 2004-02-06 | 2005-08-11 | Soqi Kabushiki Kaisha | Generating apparatus |
EP4230517A1 (en) * | 2022-02-17 | 2023-08-23 | FSG-Nobiskrug Holding GmbH | Cargo ship with multiple propeller drive with improved efficiency |
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