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electrical:12v:alternator_details [2022/04/26 12:30] frater_secessus created |
electrical:12v:alternator_details [2022/12/19 11:32] frater_secessus [large case / small case] |
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- | ===== common types of alternator ===== | + | ==== regulation |
**Standard alternators** are the simplest model like the 14.0v model in the example above. | **Standard alternators** are the simplest model like the 14.0v model in the example above. | ||
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* a normal regulator physically mounted elsewhere | * a normal regulator physically mounted elsewhere | ||
- | * the vehicle' | + | * the vehicle' |
- | * an aftermarket regulator, like Balmar | + | * an aftermarket regulator, like Balmar |
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+ | **Smart alternators** are designed to support fuel mileage efforts. | ||
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+ | ==== Heavy duty / high output ==== | ||
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+ | Alternators can be built in heavy duty configuration, | ||
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+ | * higher current rating | ||
+ | * increased internal cooling (ie, more or better fans) | ||
+ | * ability to make more power in idling scenarios, which is useful for police vehicles, ambulances, and other vehicles that need to idle for long periods of time. | ||
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+ | HD alternators for any particular vehicle may be bolt-ins with no modifications required. | ||
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+ | ==== large case / small case ==== | ||
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+ | Alternator cases come in two general sizes: | ||
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+ | One is not //better// than the other; | ||
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+ | The mounting bolt pattern may be the same or it may require a different mount. | ||
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+ | Further reading: | ||
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+ | * [[https:// | ||
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+ | === identification === | ||
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+ | There are some rules of thumb one can use to visually identify some large and small case alts. | ||
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+ | **GM-style alternators** | ||
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+ | **Ford-style alternators** | ||
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+ | {{ https:// | ||
+ | > on small case alternators there are four small holes per each of the three ribs radiating from the center. On the large case, there are only two holes on the same ribs((https:// | ||
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+ | ===== DUVAC ===== | ||
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+ | Some older Class A and C RVs came with DUVAC (DUal Voltage Alternator Control)((https:// | ||
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+ | > This Duvac system that Leese Neville came up with was a completely integrated dual battery/ | ||
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+ | > ...the primary reason for DUVAC is to allow the alternator to " | ||
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+ | {As far as I can tell this was a workaround from when many isolators were diode-based so the alternator could not " | ||
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- | **Smart alternators** | ||
- | **Heavy duty / high output alternators** | ||