X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta13.emeryville.ca.mail.comcast.net ([76.96.27.243] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with ESMTP id 4129923 for flyrotary@lancaironline.net; Thu, 18 Feb 2010 15:02:04 -0500 Received-SPF: pass receiver=logan.com; client-ip=76.96.27.243; envelope-from=n3773@comcast.net Received: from omta08.emeryville.ca.mail.comcast.net ([76.96.30.12]) by qmta13.emeryville.ca.mail.comcast.net with comcast id jS8G1d0030FhH24ADY1XiT; Thu, 18 Feb 2010 20:01:31 +0000 Received: from rv8 ([71.237.248.186]) by omta08.emeryville.ca.mail.comcast.net with comcast id jY1W1d00E422aQ78UY1WZB; Thu, 18 Feb 2010 20:01:31 +0000 Message-ID: <965F6BD9FADF4FBD8ECE1472CA4F237C@rv8> Reply-To: "kevin lane" From: "kevin lane" To: "flyrotary" Cc: "zzz" Subject: off subject - BIG engine! Date: Thu, 18 Feb 2010 12:01:22 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01CAB092.176B9240" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_0022_01CAB092.176B9240 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =20 This is some engine: Maximum power: 108,920 hp at 102 rpm=20 Maximum torque: 5,608,312 lb/ft at = 102rpm=20 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. =20 Some facts on the 14 cylinder version:=20 Total engine weight:=20 2300 tons (The crankshaft alone weighs = 300 tons.) =20 Length: 89 feet=20 Height: 44 feet=20 Maximum power: 108,920 hp at 102 rpm =20 Maximum torque: 5,608,312 lb/ft at = 102rpm =20 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.=20 Even at its most efficient power = setting, the big 14 consumes 1,660 gallons of heavy fuel oil per hour.=20 A cross section of the RTA96C:=20 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. =20 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:=20 A piston & piston rod assembly. The = piston is at the top. The large square plate at the bottom is where the = whole assembly attaches to the crosshead: =20 The cylinder deck (10 cylinder = version). Cylinder liners are die-cast ductile cast iron. Look at the size of those = head studs!:=20 The first completed 12 cylinder engine: =20 = ~ ~ ~=20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 =20 Kevin Lane - carpentry www.kevinlanecarpentry.com ------=_NextPart_000_0022_01CAB092.176B9240 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

 

 

This=20 is some engine:

Maximum=20  power: 108,920 hp at 102=20 rpm 

Maximum torque: = 5,608,312 lb/ft=20  at 102rpm 

 The=20  Wartsila-Sulzer RTA96-C = turbocharged=20 two-stroke diesel engine  is the = most=20 powerful and most efficient prime-mover = in the=20 world  today. The Aioi Works of = Japan=20 's

Diesel=20 United, Ltd built the  first = engines and is=20 where some
of these pictures were = taken. It=20  is available in 6 through 14 = cylinder=20 versions,
all are inline =  engines. These=20 engines were designed primarily for very =  large
container ships. Ship = owners like=20 a single engine/single  propeller = design=20 and
the new generation of larger = container=20 ships  needed a bigger engine to=20 propel
them. The cylinder bore is = just=20  under 38" and the stroke is just=20 over
98". Each cylinder =  displaces=20 111,143 cubic inches (1820 liters)=20 and
produces 7780  horsepower. = Total=20 displacement comes out to 1,556,002=20  cubic
inches (25,480 liters) = for the=20 fourteen cylinder=20 version.  

Some facts = on the 14=20 cylinder =  version: 

Total=20 engine weight: 

2300 =  tons (The=20 crankshaft alone weighs 300=20 tons.)  


Length: 89=20 feet 

Height: 44=20  feet 

Maximum=20 power: 108,920 hp at 102=20 rpm  

Maximum=20 torque: 5,608,312 lb/ft at=20 102rpm  

Fuel = consumption=20 at maximum power  is 0.278 lbs per = hp per=20 hour (Brake
Specific Fuel = Consumption).=20  Fuel consumption at maximum = economy is=20 0.260
lbs/hp/hour. At  maximum = economy=20 the engine exceeds 50% thermal = efficiency.=20  That
is, more than 50% of the = energy in=20 the fuel in converted to=20  motion.

For comparison, = most=20 automotive and small aircraft =  engines have=20 BSFC figures
in the 0..40-0.60 = lbs/hp/hr=20 range and  25-30% thermal = efficiency=20 range. 

Even at its =  most=20 efficient power setting, the big 14 = consumes=20 1,660  gallons
of heavy fuel oil = per=20 hour. 

A  cross section = of the=20 RTA96C: 



The = internals of=20 this engine are a bit different =  than most=20 automotive
engines.

The top of = the=20 connecting  rod is not attached = directly to=20 the piston. The top
of the =  connecting=20 rod attaches to a "crosshead" which = rides in=20  guide
channels. A long piston = rod then=20 connects the crosshead to  the=20 piston.

I assume this is done so = the the=20 sideways forces  produced by the=20 connecting
rod are absorbed by the = crosshead=20 and  not by the piston.. Those=20 sideways
forces are what makes the=20  cylinders in an auto engine get=20 oval-shaped=20 = over
time.  




The=20 crank sitting in the block  (also = known as=20 a "gondola-style"
bedplate). This is = a 10=20 cylinder  version. Note the steps = by each=20 crank throw
that lead down into =  the=20 crankcase: 



A = piston &=20 piston rod assembly. The piston is =  at the=20 top. The large
square plate at the = bottom is=20 where the  whole assembly attaches = to=20 = the
crosshead:

 






The=20 cylinder deck  (10 cylinder = version).=20 Cylinder liners are die-cast = ductile
cast=20  iron. Look at the size of those = head=20 studs!: 
3D08.jpg=20



The=20  first completed 12 cylinder=20 engine:

 

           =             &= nbsp;           &n= bsp;      =20 ~ ~ ~=20 =

= = =
 
 
Kevin Lane - carpentry
www.kevinlanecarpentry.com=
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