Power Cube WS
Based on collaboration between OSe and Wikispeed OSE-Wikispeed_Hybrid_Overview
Contents
Goals
- 50hp
- vibration reducing mounts
Parts
Hydraulic Pumps
http://www.surpluscenter.com/hydraulic.htm
- recomends halving calculation for gas engine power.
http://www.engineeringtoolbox.com/hydraulic-pumps-horsepower-d_1464.html
To find hydraulic horsepower, use the equation: HP = (PSI X GPM) / 1714
possibilities
3.87 cuin/rev, 3000rpm max, 2500 psi max
- 2500rpm 2000psi HP 49, gpm 42
- http://www.surpluscenter.com/item.asp?item=9-7132-A&catname=hydraulic
3.18 cuin/rev, 3000rpm max, 2500 psi max
- 2500rpm 2000psi HP 40, gpm 34
- http://www.surpluscenter.com/item.asp?item=9-7131-B&catname=hydraulic
targets
- system at 1000psi would need about 90gpm to reach 50HP
- http://m.grainger.com/mobile/details/?R=1DBD9
- 2500rpm max
- http://m.grainger.com/mobile/details/?R=1DBD9
- 2000psi 45gpm
- 3000psi 30gpm
- http://m.grainger.com/mobile/details/?R=1DBD7
- 2500rpm max
- http://m.grainger.com/mobile/details/?R=20V910
- 3600rpm max
- http://m.grainger.com/mobile/details/?R=1DBD7
- 4000psi 22gpm
hydraulic motors
http://www.surpluscenter.com/item.asp?item=9-7022&catname=hydraulic
Vw Engine
Exaust
the front two cylinders have some sort of heater system that most exhausts connect to. there are some exhausts that wrap around and replace these.
models called "baja" usually have the header pointing up. "drag" seem to have header pointed backwards in the middle
http://www.gex.com/41exhst.htm
heater box J-tubes replaces heater box on a standard system
http://www.dansperformanceparts.com/buggy/exh/exhaustsystem2.htm
http://www.jcwhitney.com/competition-merged-single-exhaust-systems/p2006382.jcwx
further reading
http://www.vwtrendsweb.com/tech/0109vwt_volkswagen_exhaust_test/
Tranny
http://www.qualitygermanautoparts.com/index.php?p=p1313860420
http://www.mamotorworkstv.com/vw/diagram/air-cooled-vw-flywheel-and-hardware-stock/
http://www.gex.com/empi/?type=1&code=&page=9
Sourcing Problems
pumps
- 5000rpm pumps have small cuin/rev ratings
- larger flow pumps max at 3600rpms
- VW will likey be be near 4500rpms when accelerating
Diagrams
http://www.longenterprises.com/diagram_folder/diagramlist.htm
http://www.thesamba.com/vw/archives/info/
Designs
File:Vwbellhousingadapter.skp adapter plate rough design
Bell_Housing_Pump_Mounting_Detail_Concept
mounting to bell housing [1]
WS+
mounted in a 4x4 XYZ frame. likely too heavy for the car, documenting here until find a better spot.
https://docs.google.com/file/d/0BwxMMqGvwTM-cnVSTlViQlVMSG8/edit?usp=sharing
issues
need to know length from front to back of bell housing.
- might require adding 4 inches from front to back.
according to model of engine from web, it is slightly wider than frame. could widen by 4 inches. or could mount side by side perhaps with spacer?
no sure about exhausts yet
lengthened parts of the Undercarriage
not a cube
provisional BOM
probable exhaust conflict with frame. ideally, we need a system without heaters that has ports at or above the main belt pulley.
- 3373-0 $ 149.00 BUGGY DUAL EXH,W/O HTR,BLK <- side pipes that will protrude from sides of frame
http://www.amazon.com/dp/B003GSKXAK/ref=biss_dp_t_asn
http://estore.jwwinco.com/default.aspx?page=item%20detail&itemcode=351-60-30-M10-SS-55
http://estore.jwwinco.com/default.aspx?page=item%20detail&itemcode=451.1-38-19-5/16-55
http://www.surpluscenter.com/item.asp?item=9-7843-32&catname=hydraulic
http://www.surpluscenter.com/item.asp?item=9-8485&catname=hydraulic
http://www.surpluscenter.com/item.asp?item=9-5406-32-24&catname=
http://www.surpluscenter.com/item.asp?item=1-3420-J&catname=powerTrans
https://www.surpluscenter.com/item.asp?item=1-3560&catname=powerTrans
http://www.surpluscenter.com/item.asp?item=1-3887&catname=wheels
Notes
6V vs 12V [2]
gland nut and flywheel notes [3]
forum - bell housing dimensions
flywheel
The flywheel is a heavy, machined steel wheel that is bolted to the end of the crankshaft. The flywheel serves three purposes -
- The primary purpose of the flywheel is to store kinetic energy and maintain the revolving inertia of the engine through its cycles.
- Secondarily, the flywheel serves as part of the engine starting mechanism. There are teeth all around the outer circumference of the flywheel; starter gear engages these teeth to turn the engine over for starting.
- And finally, the machined face of the flywheel acts as part of the clutch.
- The flywheel is attached to the front of the crankshaft by four dowel pegs and very tightly secured (>254 ft-lbs) by a single central gland nut which also incorporates needle roller bearings for the gearbox input shaft.
thoughts
pump attachment
- use clutch
- need clutch parts
- engagement rods and center piece
- shafting to clutch
- need clutch parts
- custom plate with shaft attached to flywheel
- could use bell housing or build mount for starter and pump
- would need coupling and shafting through bell housing
- could use bell housing or build mount for starter and pump
- geardown to allow for lower rpms on pump
