Like Tree0Likes

The Worlds Most Powerfull Engine 2 stroke Diesel

Reply
Old 01-20-2006, 09:38 AM
  #1
Rob
VIP Member
Thread Starter
Trade Score: (6)
 
Strip Poker 388's Avatar
 
Join Date: Aug 2001
Location: Madison,Mississippi
My Boats: Hustler 388
Posts: 21,567
Default The Worlds Most Powerfull Engine 2 stroke Diesel

The Wartsila-Sulzer RTA96-C turbocharged two-stroke diesel engine is the most powerful and most efficient prime-mover in the world today. The Aioi Works of Japan's Diesel United, Ltd built the first engines and is where some of these pictures were taken.

It is available in 6 through 14 cylinder versions, all are inline engines. These engines were designed primarily for very large container ships. Ship owners like a single engine/single propeller design and the new generation of larger container ships needed a bigger engine to propel them.

The cylinder bore is just under 38" and the stroke is just over 98". Each cylinder displaces 111,143 cubic inches (1820 liters) and produces 7780 horsepower. Total displacement comes out to 1,556,002 cubic inches (25,480 liters) for the fourteen cylinder version.

Some facts on the 14 cylinder version:


Total engine weight:
2300 tons (The crankshaft alone weighs 300 tons.)


Length:
89 feet


Height:
44 feet


Maximum power:
108,920 hp at 102 rpm


Maximum torque:
5,608,312 lb/ft at 102rpm


Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). Fuel consumption at maximum economy is 0.260 lbs/hp/hour. At maximum economy the engine exceeds 50% thermal efficiency. That is, more than 50% of the energy in the fuel in converted to motion.
For comparison, most automotive and small aircraft engines have BSFC figures in the 0.40-0.60 lbs/hp/hr range and 25-30% thermal efficiency range.

Even at it's most efficient power setting, the big 14 consumes 1,660 gallons of heavy fuel oil per hour.


A cross section of the RTA96C
The internals of this engine are a bit different than most automotive engines.
The top of the connecting rod is not attached directly to the piston. The top of the connecting rod attaches to a "crosshead" which rides in guide channels. A long piston rod then connects the crosshead to the piston.
I assume this is done so the the sideways forces produced by the connecting rod are absorbed by the crosshead and not by the piston. Those sideways forces are what makes the cylinders in an auto engine get oval-shaped over time.
Attached Thumbnails
The Worlds Most Powerfull Engine  2 stroke Diesel-egnine-cross-section.jpg  
__________________
.

The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
Strip Poker 388 is offline  
Reply With Quote
Old 01-20-2006, 09:40 AM
  #2
Rob
VIP Member
Thread Starter
Trade Score: (6)
 
Strip Poker 388's Avatar
 
Join Date: Aug 2001
Location: Madison,Mississippi
My Boats: Hustler 388
Posts: 21,567
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

JC Perf needs helmets like that putting his bearings in


Installing the "thin-shell" bearings. Crank & rod journals are 38" in diameter and 16" wide:


The crank sitting in the block (also known as a "gondola-style" bedplate). This is a 10 cylinder version.
Note the steps by each crank throw that lead down into the crankcase:
Attached Thumbnails
The Worlds Most Powerfull Engine  2 stroke Diesel-engine-rta96c_bearings.jpg   The Worlds Most Powerfull Engine  2 stroke Diesel-engine-rta96c_piston.jpg  
__________________
.

The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
Strip Poker 388 is offline  
Reply With Quote
Old 01-20-2006, 09:41 AM
  #3
Registered
 
rjcardinal's Avatar
 
Join Date: Jan 2001
Location: Baton Rouge, LA
My Boats: '99 27 Fountain Fever
Posts: 1,070
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

Cool!
rjcardinal is offline  
Reply With Quote
Old 01-20-2006, 09:42 AM
  #4
Rob
VIP Member
Thread Starter
Trade Score: (6)
 
Strip Poker 388's Avatar
 
Join Date: Aug 2001
Location: Madison,Mississippi
My Boats: Hustler 388
Posts: 21,567
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

Pistons and rods
The "spikes" on the piston rods are hollow tubes that go into the holes you can see on the bottom of the pistons (left picture) and inject oil into the inside of the piston which keeps the top of the piston from overheating. Some high-performance auto engines have a similar feature where an oil squirter nozzle squirts oil onto the bottom of the piston.
Attached Thumbnails
The Worlds Most Powerfull Engine  2 stroke Diesel-engine-pistons.jpg   The Worlds Most Powerfull Engine  2 stroke Diesel-engine-pistonrods.jpg  
__________________
.

The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
Strip Poker 388 is offline  
Reply With Quote
Old 01-20-2006, 09:43 AM
  #5
Rob
VIP Member
Thread Starter
Trade Score: (6)
 
Strip Poker 388's Avatar
 
Join Date: Aug 2001
Location: Madison,Mississippi
My Boats: Hustler 388
Posts: 21,567
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

The cylinder deck (10 cylinder version). Cylinder liners are die-cast ductile cast iron. Look at the size of those head studs!:
Attached Thumbnails
The Worlds Most Powerfull Engine  2 stroke Diesel-engine-rta96c_cyldeck.jpg  
__________________
.

The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
Strip Poker 388 is offline  
Reply With Quote
Old 01-20-2006, 09:43 AM
  #6
Rob
VIP Member
Thread Starter
Trade Score: (6)
 
Strip Poker 388's Avatar
 
Join Date: Aug 2001
Location: Madison,Mississippi
My Boats: Hustler 388
Posts: 21,567
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

The first completed 12 cylinder engine:
Attached Thumbnails
The Worlds Most Powerfull Engine  2 stroke Diesel-engine-rta96c.jpg  
__________________
.

The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
Strip Poker 388 is offline  
Reply With Quote
Old 01-20-2006, 10:02 AM
  #7
Registered
 
Semper Fi's Avatar
 
Join Date: Oct 2000
Location: SoCal
Posts: 4,234
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

WOW! I wonder what the pricetag is on that sucker
Semper Fi is offline  
Reply With Quote
Old 01-20-2006, 10:05 AM
  #8
Registered
 
outriggers's Avatar
 
Join Date: Nov 2003
Location: Clinton N.J.
Posts: 946
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

Rob, Being 2-cycle,I wonder if its like the Detroit's? Intake ports with exhaust valves and a blower for scavenging. Doug
outriggers is offline  
Reply With Quote
Old 01-20-2006, 10:39 AM
  #9
Registered
 
Join Date: Aug 2004
Location: Daytona Beachside
My Boats: 24 superboat 750 h.p.
Posts: 193
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

When i saw 2 stroke i thought Detroit myself
flash32118 is offline  
Reply With Quote
Old 01-20-2006, 11:12 AM
  #10
*
Platinum Member
 
madbouyz's Avatar
 
Join Date: Nov 2002
Location: PortRoyal Bermuda
My Boats: '73 Magnum 25 '66 Donzi 19
Posts: 453
Default Re: The Worlds Most Powerfull Engine 2 stroke Diesel

[QUOTE=Strip Poker 388]

Maximum torque:
5,608,312 lb/ft at 102rpm




Guess I'm gonna have to upgrade to a BMAX or XR


(what a monster.. wonder how long it takes to make one from scratch)
madbouyz is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Craney
Trucks, Trailers and Transportation
20
11-08-2006 07:01 AM
Stormrider
General Boating Discussion
15
02-28-2006 10:09 AM
turbosonic1
General Boating Discussion
5
10-01-2003 11:04 PM
mats
General Q & A
7
04-22-2003 12:01 PM
THEJOKER
General Boating Discussion
9
03-13-2003 11:35 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 01:56 PM.


Copyright 2011 OffShoreOnly. All rights reserved.