GB2057777A - A starter for an internal combustion engine - Google Patents
A starter for an internal combustion engine Download PDFInfo
- Publication number
- GB2057777A GB2057777A GB8024691A GB8024691A GB2057777A GB 2057777 A GB2057777 A GB 2057777A GB 8024691 A GB8024691 A GB 8024691A GB 8024691 A GB8024691 A GB 8024691A GB 2057777 A GB2057777 A GB 2057777A
- Authority
- GB
- United Kingdom
- Prior art keywords
- starter
- drive
- bearing
- pole housing
- face
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A starter for an internal combustion engine comprising a starter motor (1) and a starting pinion (8) with a meshing drive (9). A pole housing (2) of the starter motor (1) and a drive bearing bracket (11) which surrounds at least the meshing drive (9) are secured directly to one another at their end faces. At least resilient edge portions (18) or (19 Fig. 3 not shown) of a substantially disc-shaped intermediate bearing bracket (14) are clamped between the end faces (10 and 16) of the pole housing (2) and the drive bearing bracket (11). <IMAGE>
Description
SPECIFICATION
A starter for an internal combustion engine
The invention relates to a starter for an internal combustion engine.
A starter is already known in which an intermediate bearing having a planar rim is fitted into a recess in a drive bearing of the motor where it is held by means of a retaining ring. However, the construction is expensive, since an additional retaining member is required and has to be assembled, without ensuring adequate resistance to vibration during rough operation in motor vehicles. Furthermore, a starter is known which has an intermediate bearing disposed between a pole housing of the motor and the drive bearing.
An engaging magnet is accommodated in the intermediate bearing and a stop disc abuts against the core of the magnet. The bent-over end of the disc is supported in a recess in the drive bearing. The cumulative effect of the manufacturing tolerances of the individual parts frequently impairs the vibration-proof arrangement of the stop disc. Finally, it is known in a starter to dispose a sealing compound between the rim, abutting against the pole housing, of an intermediate bearing and that region of the drive bearing which is located opposite the said rim, around the through bores in the drive bearing for the draw rods by which the drive bearing is secured to the pole housing. In certain cases, the sealing compound might be regarded as a holder for the intermediate bearing.Nevertheless, the sealing compound between the drive bearing and the intermediate bearing can be forced inwardly, so that the intermediate bearing can readily change its axial position.
According to the present invention there is provided a starter for an internal combustion engine, comprising a starter motor on the drive shaft of which are movably disposed a starting pinion and a meshing drive, the starter motor having a pole housing which has an open end face which faces the meshing drive and to which is flanged a drive bearing which is secured directly to the end face of the pole housing and which surrounds at least the meshing drive, and an intermediate bearing, for receiving the drive shaft, having a rim provided with resilient elements which are clamped between an inner region of the end face of the pole housing and the drive bearing.
In contrast to this prior art, the starter in accordance with the invention has the advantage that the intermediate bearing constructed with resilient elements is arranged, without additional parts, in a vibration-proof manner between the pole housing and the drive bearing and, furthermore, the pole housing abuts with a wide contact surface directly against the drive bearing, thus increasing the resistance to vibration and also improving the electrical transition resistance for the earth return. A further advantage is the improved sealing of the connection region between the pole housing and the drive bearing during immersion varnishing.
The present invention will now be described further, by way of example only, with reference to the accompanying drawings; in which,
Figure 1 is a longitudinal section through a portion of a starter,
Figure 2 shows an intermediate bearing with spring tongues,
Figure 3 is a fragmentary view of a modification of the intermediate bearing of Fig. 2, and
Figure 4 is a side elevation of the rim portion of the intermediate bearing, viewed in the direction of the arrow 4 of Fig. 3.
The starter for internal combustion engines has an electric motor 1 having a pole housing 2 in which an excitation winding 3 is arranged on poles 4 which are secured in the pole housing 2 by means of screws 5. An armature 7 is secured on a drive shaft 6 of the motor 1. A starting pinion 8 and a meshing drive 9 are (also) movable disposed on the drive shaft 6.
A drive bearing 11 is secured in a known manner by means of draw rods (not illustrated) to that end face 10 of the pole housing 2 which faces the starting pinion 8. The outer region 1 2 of the end face 10 is set back axially relative to the inner region. A fastening rim 1 3 of the drive bearing 11 is mounted on the stepped end of the pole housing 2, the drive bearing abutting closely against the region 1 2 of the end face 10.
The drive bearing 11 substantially surrounds the meshing drive 9 and the starting pinion 8. An intermediate bearing 14 receives the drive shaft 6 and seals the pole housing 2 relative to the drive bearing 11. The intermediate bearing 1 4 has a circular rim portion 1 5 which abuts against a circular shoulder 1 6 of the drive bearing 11, which shoulder is inwardly contiguous with the fastening rim 1 3.
The rim portion 1 5 of the intermediate bearing 1 4 is provided with two oppositely located holes 1 7 (Fig. 2) through which extend the draw rods (not illustrated) which hold the pole housing 2 and the drive bearing 11 together.
Four radial spring tongues 18 in the form of resilient elements are pressed axially out of the rim portion 1 5 and are uniformly distributed around the rim portion 1 5 so as to be staggered relative to the holes 1 7. The spring tongues 1 8 abut under spring tension against the inner region of the end face 10 of the pole housing 2. The intermediate bearing 14 is held in the starter in a vibration-proof manner by means of the spring tongues 1 8.
In the modification, shown in Figs. 3 and 4, of the resilient elements of the intermediate bearing 14 of Fig. 2, spring ribs 1 9 are formed in the rim portion 1 5 instead of the spring tongues 1 8. They can be formed around the entire rim portion 1 5 or, alternatively, only in individual regions of the rim portion 1 5 in somewhat the same manner as the spring tongues 18 of Fig. 2.
Alternatively, the drive bearing 11 and the pole housing 2 can be constructed such that the outer region 1 2 of the end face 10 of the pole housing 2 extends as a rim beyond the inner region. The rim portion 1 5 of the intermediate bearing 1 4 then abuts against the inner region of the end face 10. The spring elements 1 8 or 1 9 are pressed out towards the shoulder 1 6 of the drive bearing 11. They then abut under spring tension against the shoulder 1 6 projecting in an axial direction beyond the fastening rim 13, while the pole housing 2 and the drive bearing 11 again abut directly against one another in the region 12, 1 3 and are rigidly interconnected.
Claims (6)
1. A starter for an internal combustion engine, comprising a starter motor on the drive shaft of which are movably disposed a starting pinion and a meshing drive, the starter motor having a pole housing which has an open end face which faces the meshing drive and to which is flanged a drive bearing which is secured directly to the end face of the pole housing and which surrounds at least the meshing drive, and an intermediate bearing, for receiving the drive shaft, having a rim provided with resilient elements which are clamped between an inner region of the end face of the pole housing and the drive bearing.
2. A starter as claimed in claim 1, in which the resilient elements of the intermediate bearing are in the form of bent spring tongues cut into the rim region.
3. A starter as claimed in claim 1, in which the resilient elements of the intermediate bearing are pressed-in spring ribs in the rim region.
4. A starter as claimed in one of the claims 1 to 3, in which the intermediate bearing is inserted into a recess in the end face of the pole housing.
5. A starter as claimed in one of the claims 1 to 3, in which the intermediate bearing is inserted into a recess which is disposed in the end face of the drive bearing and which is surrounded by a rirn abutting against an outer region of the end face of the pole housing.
6. A starter constructed and arranged substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19797922075 DE7922075U1 (en) | 1979-08-02 | 1979-08-02 | TURNING DEVICE FOR INTERNAL COMBUSTION ENGINES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2057777A true GB2057777A (en) | 1981-04-01 |
| GB2057777B GB2057777B (en) | 1983-06-22 |
Family
ID=6706278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8024691A Expired GB2057777B (en) | 1979-08-02 | 1980-07-29 | Starter for an internal combustion engine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5627065A (en) |
| DE (1) | DE7922075U1 (en) |
| ES (1) | ES8105824A1 (en) |
| FR (1) | FR2462574A1 (en) |
| GB (1) | GB2057777B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870462U (en) * | 1981-11-07 | 1983-05-13 | 三菱電機株式会社 | starting motor |
-
1979
- 1979-08-02 DE DE19797922075 patent/DE7922075U1/en not_active Expired
-
1980
- 1980-07-24 FR FR8016381A patent/FR2462574A1/en active Granted
- 1980-07-29 GB GB8024691A patent/GB2057777B/en not_active Expired
- 1980-07-31 ES ES493906A patent/ES8105824A1/en not_active Expired
- 1980-08-01 JP JP10520780A patent/JPS5627065A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2462574A1 (en) | 1981-02-13 |
| DE7922075U1 (en) | 1981-02-05 |
| GB2057777B (en) | 1983-06-22 |
| JPS5627065A (en) | 1981-03-16 |
| ES493906A0 (en) | 1981-06-16 |
| FR2462574B3 (en) | 1983-05-06 |
| ES8105824A1 (en) | 1981-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |