Engines: Difference between revisions
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*$40 - [https://www.amazon.com/PIAOCAIYIN-49cc-Stroke-Engine-Motorized/dp/B0C73RYV1T/ref=asc_df_B0C73RYV1T/?tag=hyprod-20&linkCode=df0&hvadid=673665759966&hvpos=&hvnetw=g&hvrand=8762843490355033326&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-2204682644080&psc=1&gclid=CjwKCAjwseSoBhBXEiwA9iZtxnMoAG6y4xPlNMDAF16hwhdVM4pqCyEE6YVfbRZOupBq39QbzSJk4hoC0FwQAvD_BwE] | *$40 - [https://www.amazon.com/PIAOCAIYIN-49cc-Stroke-Engine-Motorized/dp/B0C73RYV1T/ref=asc_df_B0C73RYV1T/?tag=hyprod-20&linkCode=df0&hvadid=673665759966&hvpos=&hvnetw=g&hvrand=8762843490355033326&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-2204682644080&psc=1&gclid=CjwKCAjwseSoBhBXEiwA9iZtxnMoAG6y4xPlNMDAF16hwhdVM4pqCyEE6YVfbRZOupBq39QbzSJk4hoC0FwQAvD_BwE] | ||
= | =6.5 hp= | ||
*For the $/hp ratio, the 212 cc range appears optimal. | *For the $/hp ratio, the 212 cc range appears optimal. | ||
*With electric start - 212 cc - $119 [https://www.amazon.com/YIYIBYUS-Electric-Horizontal-4-Stroke-Industrial/dp/B09BKNG3D6/ref=asc_df_B09BKNG3D6/?tag=hyprod-20&linkCode=df0&hvadid=532737912949&hvpos=&hvnetw=g&hvrand=10937276401938065381&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023314&hvtargid=pla-1411248082058&psc=1#customerReviews] | *With electric start - 212 cc - $119 [https://www.amazon.com/YIYIBYUS-Electric-Horizontal-4-Stroke-Industrial/dp/B09BKNG3D6/ref=asc_df_B09BKNG3D6/?tag=hyprod-20&linkCode=df0&hvadid=532737912949&hvpos=&hvnetw=g&hvrand=10937276401938065381&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023314&hvtargid=pla-1411248082058&psc=1#customerReviews] | ||
Revision as of 16:00, 28 October 2023
About
- 2-strokes have 3-9 hp at 50 cc. See cc to hp - [1]
- Ex - Stihl MS 660 is 7 hp and 91 cc
50 cc with Electric Start
- $209 -[2]
3hp
- $40 - [3]
6.5 hp
- For the $/hp ratio, the 212 cc range appears optimal.
- With electric start - 212 cc - $119 [4]
20 hp Range
Selection
OSE's 2020 choice for an engine is the Poulan 19 hp x4 for 74 hp - [5]
Gas
The threshold for relatively inexpensive engines is 19 hp.
- 27 hp - $980 - $36/hp - [6]. And needs muffler.
- 24 hp - $870 - $36/hp [7]
- 22 hp - Briggs - $29/hp - [8]
- 20 hp - Kohler $700 - $35/hp + muffler - [9]
- 19 hp Poulan - - $20.5/hp - $390 - [10]
- 16 hp - $350 - Poulan - [11]. No gas pump, gravity feed gas. But, doesn't come with muffler.
Has 15A charging. Muffler - [12] - 16hp - $330 - Duromax, $20.6/hp - [13]
- 7 hp - $159 - $22/hp - but no electric start - [14]
- 18hp Duromax $18/hp - has muffler, but not charging
- such as for a fan - [15]
Diesel
- 30 hp Kubota $5000 - $166/hp [16]
- 33 hp Kubota - $6500 [17]
- 65 HP - $6300 - $100/hp [18]
- 200 hp - $55/HP - $11k - Cummins - [19]
- 360 HP Mack used - $10/HP - $3600
- 300 hp [20] $7500 [21]
Considerations
- Until an open source engine becomes a reality, engine repair is expensive. $50/hr, easily comes to the new engine price for the $300 gas engine. This indicates that small engines are essentially disposable goods.
- For the large diesel engine, parts are expensive.
- Until the advent of the open source diesel engine, engine costs remain 10x as high as they should be.
- Until the OS engine, disposable engines are a suboptimal but acceptable strategy to keep costs of engine systems low.
- It is an immediate priority of OSE to develop open source small engines, $11B market (see Market Size) and larger ones are more like 200 billion
Engine Links
- 500 &U 1000 hour lifetime for small engines - [22]
- 2000-4000 year life of car engines [23] - 150k miles
- Tractor engines - 5-10k hours [24]
- Pellet-fired stirling engine buggy - see PDF file
- Several links to various engine types including Sterling, Wankel, Steam, etc. [25].
Types
Rotary