Rear Mount Hydraulic Turbo? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

fang_gt86 · 11-21-2014, 03:03 PM

I'm wondering if a rear-mount hydraulic driven turbo like my concept below can possibly work? This isn't anything serious just a fun concept!

I think some of the obvious benefits are things like less heat in engine bay and better weight distribution.

tobin · 11-21-2014, 03:06 PM

Dude you should patent that immediately.

Tcoat · 11-21-2014, 03:29 PM

Quote:

Originally Posted by tobin

Dude you should patent that immediately.

To late, it is now public domain as he posted on the forum without copywrite or patent!

f0rge · 11-21-2014, 04:34 PM

You have to wonder why no one has done this before if it was actually viable.

Even an accessory driven hydraulic pump could work.

Tcoat · 11-21-2014, 05:22 PM

Well apparently if you attended the 2002 SAE Powertrain and Fluid conference (sounds like a blast) then you would have heard a paper discussion on the topic. Apparently didn't pan out as there was very little info on the topic to be found. There is however a patent filed for a hydraulically "assisted" turbo.
And a similar idea has been knocked around on other forums.
http://papers.sae.org/2002-01-2731/
http://www.google.ca/url?sa=t&rct=j&...80185997,d.cWc
http://www.google.ca/url?sa=t&rct=j&...80185997,d.cWc

jvincent · 11-21-2014, 05:26 PM

Quote:

Originally Posted by Tcoat

To late, it is now public domain as he posted on the forum without copywrite or patent!

There is a one year grace period in the US, so he has some time.

fang_gt86 · 11-21-2014, 06:18 PM

Quote:

Originally Posted by f0rge

You have to wonder why no one has done this before if it was actually viable.

Even an accessory driven hydraulic pump could work.

It's not a simple design for sure. Way more parts comparing to traditional setups.

fang_gt86 · 11-21-2014, 06:20 PM

Quote:

Originally Posted by tobin

Dude you should patent that immediately.

It's just an idea for discussion.

Tcoat · 11-21-2014, 06:24 PM

Quote:

Originally Posted by fang_gt86

It's just an idea for discussion.

Cool idea, that is why I tried to find more on the subject. Not a lot of info out there though.

Foobar · 11-21-2014, 07:13 PM

Would the hydraulic fluid move fast enough to charge the blower to sufficient speeds?

Sent from my Nexus 5 using Tapatalk

fang_gt86 · 11-21-2014, 09:14 PM

Quote:

Originally Posted by Foobar

Would the hydraulic fluid move fast enough to charge the blower to sufficient speeds?

Sent from my Nexus 5 using Tapatalk

Yeah, I had that same doubt too. Maybe geared the turbine pumps so the fluid will reach the blower at faster speed?

serialk11r · 11-21-2014, 09:59 PM

Instead of a shaft (100% conversion efficiency), you are using a pump and a turbine which has considerable losses through flow viscosity and "leakage" at the pump and turbine. It would be better to use an electric generator and motor pair which would have maybe 85% efficiency.

DAEMANO · 11-22-2014, 12:48 AM

Quote:

Originally Posted by serialk11r

Instead of a shaft (100% conversion efficiency), you are using a pump and a turbine which has considerable losses through flow viscosity and "leakage" at the pump and turbine. It would be better to use an electric generator and motor pair which would have maybe 85% efficiency.

That idea has a familiar ring to it.

stugray · 11-22-2014, 01:27 AM

They are doing that exact idea, but replace the pipes with solid copper and the hydraulic fluid with electron fluid :-)

This has some info:

http://www.heat2power.net/en__benchmark.php

The electric turbo compounding.
Now you can isolate the intake impeller from all of that heat

11-21-2014, 03:03 PM	#1
fang_gt86 FR Noob Join Date: Jun 2013 Drives: FR-S Location: DFW Posts: 792 Thanks: 218 Thanked 614 Times in 318 Posts Mentioned: 2 Post(s) Tagged: 3 Thread(s)	Rear Mount Hydraulic Turbo? I'm wondering if a rear-mount hydraulic driven turbo like my concept below can possibly work? This isn't anything serious just a fun concept! I think some of the obvious benefits are things like less heat in engine bay and better weight distribution. __________________ "I'm having too much fun to care about horsepower" - Unknown 6MT FR-S Whiteout:OFT- OTS V2 Stage 2 (93oct & E85), Tomei UEL, Invidia OP, JDL UltraQuiet FP, Ark Grip catback, GS hood struts, Perrin Inlet & K&N drop-in Last edited by fang_gt86; 11-21-2014 at 03:20 PM.

11-21-2014, 05:22 PM	#5
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,294 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	Well apparently if you attended the 2002 SAE Powertrain and Fluid conference (sounds like a blast) then you would have heard a paper discussion on the topic. Apparently didn't pan out as there was very little info on the topic to be found. There is however a patent filed for a hydraulically "assisted" turbo. And a similar idea has been knocked around on other forums. http://papers.sae.org/2002-01-2731/ http://www.google.ca/url?sa=t&rct=j&...80185997,d.cWc http://www.google.ca/url?sa=t&rct=j&...80185997,d.cWc __________________ Racecar spelled backwards is Racecar, because Racecar.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Hydraulic Hand Brake?	Gillams	Scion FR-S / Toyota 86 GT86 General Forum	2	09-18-2014 05:47 PM
AVO Turbo Front Mount Intercooler (BRAND NEW)	tamsau	Engine, Exhaust, Bolt-Ons	1	06-18-2014 11:53 PM
Raceseng Tow Hook w/ Go Pro Mount Built In Front/Rear Mount -fteightysix	86SPEED	Exterior Parts - The Rest	2	08-20-2013 02:37 AM
OEM hydraulic hood props	ML	Cosmetic Modification (Interior/Exterior/Lighting)	4	07-23-2013 10:24 AM

11-21-2014, 03:06 PM	#2
tobin Senior Member Join Date: Jun 2013 Drives: '13 BRZ Location: CT Posts: 491 Thanks: 322 Thanked 334 Times in 158 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	Dude you should patent that immediately.

11-22-2014, 01:27 AM	#14
stugray Banned Join Date: Sep 2013 Drives: 2013 GBS BRZ Limited Location: Colorado Posts: 1,925 Thanks: 627 Thanked 1,445 Times in 711 Posts Mentioned: 41 Post(s) Tagged: 0 Thread(s)	They are doing that exact idea, but replace the pipes with solid copper and the hydraulic fluid with electron fluid :-) This has some info: http://www.heat2power.net/en__benchmark.php The electric turbo compounding. Now you can isolate the intake impeller from all of that heat

User Name		Remember Me?
Password