US2332986A - Engine starting device - Google Patents
Engine starting device Download PDFInfo
- Publication number
- US2332986A US2332986A US449410A US44941042A US2332986A US 2332986 A US2332986 A US 2332986A US 449410 A US449410 A US 449410A US 44941042 A US44941042 A US 44941042A US 2332986 A US2332986 A US 2332986A
- Authority
- US
- United States
- Prior art keywords
- pinion
- engine
- detent
- mesh
- nut
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
- F02N15/062—Starter drives
- F02N15/065—Starter drives with blocking means
-
- 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
- Y10T74/13—Machine starters
- Y10T74/131—Automatic
Definitions
- the present invention relates to engine starting devices and more particularly to a device for assuring the; engagement of a drive pinion with its engine gear, and maintaining such engagement until the engine is reliably self-operative.
- Fig. 1 is a side elevation partly in section of a preferred embodiment of the invention show ing the parts in idle position;
- Fig. 2. is a similar view showing the parts in cranking position, and including, a diagrammatic showing of a starting system incorporating the invention; and i Fig. 3 is a section taken substantially on the line 3-3 of Fig. 2 showing the overrunm'ng clutch driving connection to the pinion.
- a power shaft I having a screw shaft 2 journalled thereon and yieldably connected to rotate therewith by means of a drive spring 3 anchored to the drive shaft at 4 and to the screw shaft at 5.
- a nut 6 is threaded on the screw shaft and has journalled thereon a pinion 'l which is connected for rotation with the nut by means of an overrunning clutch indicated generally by numeral 8.
- means are. provided for ensuringv traversal of the pinion: into mesh with the engine gear upon rotation of the screw shaft and for thereafter holding the pinion in mesh.
- this means is in the form of a detent l5 slidably mounted in a fixed. bearing member It. in position to engage. between the teethof the pinion I and oppose rotation thereof during the meshing. movement, and to drop down behind thepinion and act as a latch to hold the pinion meshed with the engine gear.
- detent may be operated manually or by means of any suitable actuating mechanism.
- actuating mechanism for the pinion detent is shown in Fig. l, where the bearing member I6 is in the form of a cylinder, and the detent I5 is formed with a piston head l5a slidably fitting the cylinder.
- Aspring [5b normally presses the detent against the pinion I, and a connection I is provided from the upper end of the cylinder to the intake manifold of the 1 If the engine then dies, the starter will resume cranking, and when the engine runs, the intake vacuum so generated withdraws the detent and permits the pinion to return to idle position.
- FIG. 2 Anelectrical arrangement for actuating the detent is illustrated diagrammatically in Fig. 2 which shows a starting circuit including a starting motor i1 connected through a starting switch l8 to a battery l9.
- is connected in series with the starting motor so as to be energized concurrently therewith by closure of the starting switch, the cranking and detent circuit being completed through the ground connections 22 and 23.
- the detent is normally held disengaged from the pinion by a spring 20.
- closure of the starting switch l8 causes energization of the starting motor I! and of the solenoid 2
- the consequent translation of the pinion into mesh with the engine I gear 9 causes the pinion to move away from the detent, allowing the detent to drop down behind the pinion as shown in Fig. 2 when the pinion ted by the overrunning clutch 8, while thepinion is held in mesh by the detent l5.
- cranking will immediately be resumed until a successful start is secured.
- the operator opens the starting switch i8 whereupon the detent I5 is disengaged from the pinion by the spring 20, and the pinion is threaded back to its idle position.
- an engine starter drive a screw shaft, a nut threaded thereon, a'pinion connected to the nut for longitudinal movement therewith into and out of engagement with a gear of an engine to be started, an overrunning clutch connection between the nut and pinion, detent means for resisting rotation of the pinion when in idle position to ensure its traversal into mesh on rotation of the screw shaft, and means for moving said detent when the pinion is in mesh with the engine gear, into position to prevent disengagement of the pinion from the engine gear.
- an engine starter drive a screw shaft, a nut threaded thereon, a pinion connected to the nut for longitudinal movement therewith into and out of engagement with a gear of an engine to be started, an overrunning clutch connection between the nut and pinion, a detent, and means for moving the detent into engagement with the pinion to resist its rotation and thereby ensure its traversal into operative position when the screw shaft is rotated, said detent being arranged to drop back of the pinion when fully meshed with the engine gear and prevent the pinion from dis-engaging the engine gear.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gear Transmission (AREA)
Description
Oct. 26, 1943. J. E. BUXTON ENGINE STARTING DEVICES Filed July 2, 1942 R O m w m m 1 a 1 M 0/0 I m a s. U W 95 7 pH J W W I m 1H. n W36 a I r b I. E
Patented Oct. 26, 1943 PATENT: mm
James E. Bnxton, Elmira, N.'Y., assignor to Bendix Aviation Corporation poration of Delaware 1 Application July 2, 1942, Serial No. 449,410
Claims;
The present invention relates to engine starting devices and more particularly to a device for assuring the; engagement of a drive pinion with its engine gear, and maintaining such engagement until the engine is reliably self-operative.
In engine starter drives of the type in which a pinion is automatically traversed into and out of. engagement with an engine gear, various forms of detent have been .used to .ensure traversal of the pinion into mesh when the power shaft is rotated. Furthermore, in .those drives of this type which are arranged to hold the pinion in mesh until the engine is reliably selfopera'tive, various forms of latch have been used tofprevent premature de-mesh of the pinion.
It is an object of the present invention to provide a novel engine starter drive incorporating unitary means for ensuring traversal of the pinion into mesh and for thereafter holding the pinion in mesh.
It is another object, to provide such a device incorporating an overrunning clutch connection to the pinion to prevent rotating the starting motor from the engine when the engine starts.
Further objects and advantages will be apparent from the following description taken in connection with the accompanying drawing, in which:
Fig. 1 is a side elevation partly in section of a preferred embodiment of the invention show ing the parts in idle position;
Fig. 2. is a similar view showing the parts in cranking position, and including, a diagrammatic showing of a starting system incorporating the invention; and i Fig. 3 is a section taken substantially on the line 3-3 of Fig. 2 showing the overrunm'ng clutch driving connection to the pinion.
e In Fig. 1 of the drawing there is illustrated a power shaft I having a screw shaft 2 journalled thereon and yieldably connected to rotate therewith by means of a drive spring 3 anchored to the drive shaft at 4 and to the screw shaft at 5. A nut 6 is threaded on the screw shaft and has journalled thereon a pinion 'l which is connected for rotation with the nut by means of an overrunning clutch indicated generally by numeral 8. Traversal of the nut 6 on the screw shaft 2 causes the pinion 1 to be carried into and out of mesh with a member such as a gear 9 of an engine to be started, the operative position of the pinion being defined by a stop nut H on the screw shaft and a thrust collar l2 slidably mounted on a smooth portion I 3 of the screw shaft. An anti-drift spring [4 is interposed be-,
, South Bend, Indqa cortween the thrust collar 12 andstopnut .1 land serves to normally maintain th'e pinionin idle position. 1
According to the present invention means are. provided for ensuringv traversal of the pinion: into mesh with the engine gear upon rotation of the screw shaft and for thereafter holding the pinion in mesh. As here shown, this meansis in the form of a detent l5 slidably mounted in a fixed. bearing member It. in position to engage. between the teethof the pinion I and oppose rotation thereof during the meshing. movement, and to drop down behind thepinion and act as a latch to hold the pinion meshed with the engine gear.
This, detent may be operated manually or by means of any suitable actuating mechanism. One formof actuating mechanism for the pinion detent is shown in Fig. l, where the bearing member I6 is in the form of a cylinder, and the detent I5 is formed with a piston head l5a slidably fitting the cylinder. Aspring [5b normally presses the detent against the pinion I, and a connection I is provided from the upper end of the cylinder to the intake manifold of the 1 If the engine then dies, the starter will resume cranking, and when the engine runs, the intake vacuum so generated withdraws the detent and permits the pinion to return to idle position.
Anelectrical arrangement for actuating the detent is illustrated diagrammatically in Fig. 2 which shows a starting circuit including a starting motor i1 connected through a starting switch l8 to a battery l9. A detent actuating solenoid 2| is connected in series with the starting motor so as to be energized concurrently therewith by closure of the starting switch, the cranking and detent circuit being completed through the ground connections 22 and 23. In this case the detent is normally held disengaged from the pinion by a spring 20. e
In the operation of this form of the invention closure of the starting switch l8 causes energization of the starting motor I! and of the solenoid 2| whereby the screw shaft 2 is caused to rotate and at the same time the detent I5 is pressed against the pinion 'l by the solenoid 2| to prevent rotation thereof. The consequent translation of the pinion into mesh with the engine I gear 9 causes the pinion to move away from the detent, allowing the detent to drop down behind the pinion as shown in Fig. 2 when the pinion ted by the overrunning clutch 8, while thepinion is held in mesh by the detent l5. Ii: the
engine should fail to continue self-operative,
cranking will immediately be resumed until a successful start is secured. When the engine is reliably self-operative the operator opens the starting switch i8 whereupon the detent I5 is disengaged from the pinion by the spring 20, and the pinion is threaded back to its idle position.
Although certain embodiments of the invention have been shown and described in detail, it will be understood that other embodiments are possible and that various changes may be-made in'the design and arrangement of the parts without departing from the spirit of the invention as defined in the claims appended hereto.
What is claimed is:
1. In an engine starter drive a screw shaft, a nut threaded thereon, a'pinion connected to the nut for longitudinal movement therewith into and out of engagement with a gear of an engine to be started, an overrunning clutch connection between the nut and pinion, detent means for resisting rotation of the pinion when in idle position to ensure its traversal into mesh on rotation of the screw shaft, and means for moving said detent when the pinion is in mesh with the engine gear, into position to prevent disengagement of the pinion from the engine gear.
2. In an engine starter drive a screw shaft, a nut threaded thereon, a pinion connected to the nut for longitudinal movement therewith into and out of engagement with a gear of an engine to be started, an overrunning clutch connection between the nut and pinion, a detent, and means for moving the detent into engagement with the pinion to resist its rotation and thereby ensure its traversal into operative position when the screw shaft is rotated, said detent being arranged to drop back of the pinion when fully meshed with the engine gear and prevent the pinion from dis-engaging the engine gear.
3, In an engine starter drive a screw shaft, a nut threaded thereon, a pinion swiveled on the nut and moveable thereby into and out of engagement with a gear of an engine to be started, an overrunning clutch between the nut and pinion, a detent, and means for moving the detent to engage the periphery of the pinion and resist its rotation when in idle position, said detent being arranged to drop down back of the pinion when it is fully meshed with the engine gear, tohold the pinion in mesh.
4. In an engine starter drive as set forth in claim 3, means responsive to self-operation of the engine for withdrawing the latch from its holding position.
5. In an engine starter drive as set forth in claim 3, means responsive to closure of the starting switch for moving the detent into engagement with the pinion, and means for withdrawing the detent when the starting switch is opened.
JAMES E. BUXTON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US449410A US2332986A (en) | 1942-07-02 | 1942-07-02 | Engine starting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US449410A US2332986A (en) | 1942-07-02 | 1942-07-02 | Engine starting device |
Publications (1)
Publication Number | Publication Date |
---|---|
US2332986A true US2332986A (en) | 1943-10-26 |
Family
ID=23784063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US449410A Expired - Lifetime US2332986A (en) | 1942-07-02 | 1942-07-02 | Engine starting device |
Country Status (1)
Country | Link |
---|---|
US (1) | US2332986A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2447765A (en) * | 1945-05-12 | 1948-08-24 | Bendix Aviat Corp | Engine starter drive |
US3496759A (en) * | 1968-06-06 | 1970-02-24 | Bendix Corp | Starter drive with friction advance and inertia release |
EP0725216A2 (en) * | 1994-09-19 | 1996-08-07 | Nippondenso Co., Ltd. | Starter |
US5610445A (en) * | 1993-12-27 | 1997-03-11 | Nippondenso Co., Ltd. | Starter for engine having a ring gear |
EP0781919A1 (en) * | 1995-12-26 | 1997-07-02 | Denso Corporation | Starter with pinion regulating claw and spring |
US5767585A (en) * | 1993-12-27 | 1998-06-16 | Nippondenso Co., Ltd. | Starter |
EP0742368B1 (en) * | 1995-05-10 | 1999-07-28 | Denso Corporation | Starter with pinion return preventing mechanism |
-
1942
- 1942-07-02 US US449410A patent/US2332986A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2447765A (en) * | 1945-05-12 | 1948-08-24 | Bendix Aviat Corp | Engine starter drive |
US3496759A (en) * | 1968-06-06 | 1970-02-24 | Bendix Corp | Starter drive with friction advance and inertia release |
US5610445A (en) * | 1993-12-27 | 1997-03-11 | Nippondenso Co., Ltd. | Starter for engine having a ring gear |
US5767585A (en) * | 1993-12-27 | 1998-06-16 | Nippondenso Co., Ltd. | Starter |
EP0725216A2 (en) * | 1994-09-19 | 1996-08-07 | Nippondenso Co., Ltd. | Starter |
EP0725216A3 (en) * | 1994-09-19 | 1996-10-09 | Nippon Denso Co | Starter |
EP0742368B1 (en) * | 1995-05-10 | 1999-07-28 | Denso Corporation | Starter with pinion return preventing mechanism |
EP0781919A1 (en) * | 1995-12-26 | 1997-07-02 | Denso Corporation | Starter with pinion regulating claw and spring |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2332986A (en) | Engine starting device | |
US2317344A (en) | Engine starter | |
US2455328A (en) | Engine starter gearing and control | |
US2787910A (en) | Engine starter drive | |
US3974703A (en) | Combination return and mesh spring-plunger pole motor | |
US2339486A (en) | Engine starter gearing | |
US2447198A (en) | Starter for internal-combustion engines | |
US3222938A (en) | Engine starter gearing | |
US2396986A (en) | Starter for internal-combustion engines | |
US2394531A (en) | Engine starter gearing | |
US2818735A (en) | Starter gearing for internal combustion engines | |
US2423068A (en) | Engine starter | |
US2444109A (en) | Engine starter gearing | |
US2345791A (en) | Engine starter gearing | |
US2407132A (en) | Engine starter gearing | |
US1737802A (en) | Engine starter | |
US2828630A (en) | Engine starter gearing | |
US1870367A (en) | Engine starting mechanism | |
US2322964A (en) | Engine starter gearing | |
US2446458A (en) | Engine starter | |
US2305219A (en) | Engine starter gearing | |
US2455339A (en) | Engine starter gearing | |
US2613539A (en) | Engine starter drive | |
US2344463A (en) | Engine starter gearing | |
US1897938A (en) | Engine starting mechanism |