Group 5 - Honda IC Engine - 1 - Revision history

GICL Bot: GICL Bot: Updated link(s)

2009-03-17T22:45:39Z

GICL Bot: Updated link(s)

M Piecyk: Added CAD files

2009-02-06T04:06:49Z

Added CAD files

UB08G05: /* Group Members */

2008-12-06T04:22:45Z

Group Members

UB08G05: /* Group Members */

2008-12-06T02:18:53Z

Group Members

UB08G05: /* Introduction */

2008-12-05T20:23:27Z

Introduction

UB08G05: /* Parts Description */

2008-12-05T16:45:47Z

Parts Description

UB08G05: /* After Assembly */

2008-12-05T16:44:03Z

After Assembly

UB08G05: /* Parts Description */

2008-12-05T16:36:57Z

Parts Description

UB08G05: /* Parts Description */

2008-12-05T16:34:01Z

Parts Description

UB08G05: /* Introduction */

2008-12-05T16:28:18Z

Introduction

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 ==After Disassembly==
-The CAD files can be downloaded [[Media:Group_5_CAD.zip|here]].
+The CAD files can be downloaded <!--GICL Bot edit:-->[[Group_5_CAD.zip Contents|here]].
 ===Parts Table===

@@ Line 110: / Line 110: @@
 ==After Disassembly==
 ===Parts Table===
 [http://www.bikebandit.com/houseofmotorcycles/honda-motorcycle-cbr600f2-1994/o/m2043 Schematics]

@@ Line 23: / Line 23: @@
 *Priyambada Parajuli (Disassembly/Assembly)
 *Rassell D'Silva Green (Disassembly, Photogaphy, Video Recording)
-*Bilal Mohideen
+*Bilal Mohideen (Disassembly/Assembly)
 ===Product===

@@ Line 21: / Line 21: @@
 *David Olson (Group Leader, Presentation, Animation Development)
 *Mike Pelino
-*Priyambada Parajuli
+*Priyambada Parajuli (Disassembly/Assembly)
 *Rassell D'Silva Green (Disassembly, Photogaphy, Video Recording)
 *Bilal Mohideen

@@ Line 16: / Line 16: @@
 *Steven Kapturowski (Group Leader, Presentation, Disassembly)
 *Chris Deptula
-*Sam Brown (Wiki Page Development)
+*Sam Brown (Wiki Page Development, Disassembly, Assembly)
 *Kyle Stillwell (Disassembly/Assembly)
 *David Pels (Animation Development, Part Modeling, Video Recording)

@@ Line 268: / Line 268: @@
 *Clutch:<br/>
-:- The clutch is the part of the gear box that keeps the engine running as the driver changes gears. The clutch is made up of a serious of plates held together under the compression force of four springs and works on the idea of friction. While driving, the clutch connects the crankshaft to the transmission and allows the crankshafts energy to flow to the transmission, which in turn transfers that energy to the drive wheel. If the driver of motorcycle pulls the left lever, the clutch will disengage. When pulling the lever, the wire connected will pull on the spring pulling the clutch plates apart. When the plates are apart, the crankshaft is disconnected from the transmission and no energy goes to the wheels.  When the crankshaft is disconnected from the transmission the driver can shift gears. After shifting the gears, the driver would reengage the clutch, transferring the power again.
+:- The clutch is the part of the gear box that keeps the engine running as the driver changes gears. The clutch is made up of a series of plates held together under the compression force of four springs and works on the idea of friction. While driving, the clutch connects the crankshaft to the transmission and allows the crankshaft's energy to flow to the transmission, which in turn transfers that energy to the drive wheel. If the driver of the motorcycle pulls the left lever, the clutch will disengage. When pulling the lever, the wire connected will pull on the spring and separate the clutch plates. When the plates are apart, the crankshaft is disconnected from the transmission and no energy goes to the wheels.  When the crankshaft is disconnected from the transmission the driver can shift gears. After shifting the gears, the driver would reengage the clutch, transferring the power again.
 *Transmission:<br/>

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 While even a small engine such as this has many parts and components, the functionality of the engine is fairly straight forward.  After we opened up the engine, we learned that it works as follows:
-*Fuel enters the carburator where it is combined with air so that it will be optimally combustable.
+*Fuel enters the carburetor where it is combined with air so that it will be optimally combustible.
 *The fuel is then sent into the combustion chambers by means of the cams, which are kept in perfect time with the pistons.
 *Combustion of the fuel/air mixture drives the pistons, which in turn rotate the drive shaft.
-*The drive shaft has the duel purpose of keeping the cam shaft in time, and transfering its rotational energy to the transmission.
+*The drive shaft has the duel purpose of keeping the cam shaft in time, and transferring its rotational energy to the transmission.
 *The transmission changes the angular velocity of the rotation, depending on the velocity of the motorcycle.  It then transfers that energy to the drive wheel, which powers the motorcycle.
-*The clutch is manually operated and seperates the transmission from the drive shaft so that the gears can be changed, which will change the energy sent to the drive wheel.
+*The clutch is manually operated and separates the transmission from the drive shaft so that the gears can be changed, which will change the energy sent to the drive wheel.
 *Total Recorded Number of Parts (including fasteners): 345
-Unfortunately, the engine would not have worked when we recieved it.  We had no fuel, and several parts were damaged or missing.  However, after reassembly we were able to see what was missing, and make a few adjustments so that the parts fit together more like they were supposed to.  We were also able to drive the parts by hand and get them to work in sync with each other.
+Unfortunately, the engine would not have worked when we received it.  We had no fuel, and several parts were damaged or missing.  However, after reassembly we were able to see what was missing, and make a few adjustments so that the parts fit together more like they were supposed to.  We were also able to drive the parts by hand and get them to work in sync with each other.
-In order to analyze this engine, or its parts, very precise models would be needed.  All the parts in this engine work together in unison, and altering any part of them can seriously hinder their performance.  For this reason, models of the engine would either need to be very exact prototypes, or precise computer simulations.  The knowledge of sizing of parts, locations, and even fuel mixtures need to be very precise because if they are not, the engine might not work.  Futhermore, estimates can be dangerous because this is a tool designed to carry a person from place to place, and short cuts can not be taken when the safety of another person is on the line.
+In order to analyze this engine, or its parts, very precise models would be needed.  All the parts in this engine work together in unison, and altering any part of them can seriously hinder their performance.  For this reason, models of the engine would either need to be very exact prototypes, or precise computer simulations.  The knowledge of sizing of parts, locations, and even fuel mixtures need to be very precise because if they are not, the engine might not work.  Furthermore, estimates can be dangerous because this is a tool designed to carry a person from place to place, and short cuts can not be taken when the safety of another person is on the line.
-The disassembly process for this engine was completely reversible. In fact, we discovered on reassembly that there was only one order we could put the engine back together in.  The first day we wanted to put the engine back together, one of the pistons was still at the home of a team member being modeled on the computer.  Because of this we could not reattach the crankshaft.  We needed the inner parts together so that we could put the engine block back together.  After that, each part went back together in order; the cams, then the camshaft, then the carburator and air filter.
+The disassembly process for this engine was completely reversible. In fact, we discovered on reassembly that there was only one order we could put the engine back together in.  The first day we wanted to put the engine back together, one of the pistons was still at the home of a team member being modeled on the computer.  Because of this we could not reattach the crankshaft.  We needed the inner parts together so that we could put the engine block back together.  After that, each part went back together in order; the cams, then the camshaft, then the carburetor and air filter.
 The reassembly also required considerably greater delicacy as we had to make sure all the parts were inserted so as to preserve the exact operational timing. For example, the gear ends of the cam shafts have a marker on them that indicates what directions they need to be in when the chain goes around them.  If they aren't connected in the right way with the chain, they will fail to rotate in unison and therefore the valves won't open and close at the precise time that they're supposed to, rendering the entire engine inoperable.
-The most significant design change at the component level that we would suggest is standardization.  The most used tool in the assembly/disassembly of this engine is a socket wrench, but there are many different sized bolt heads, so different sized sockets were needed.  It is understandable that bolts will be different lengths and sizes because they connect different parts, some of ehich need to be more secure than others.  However, if all the bolts had the same sized head, it would be much easier to get inside the engine block and perform repairs.
+The most significant design change at the component level that we would suggest is standardization.  The most used tool in the assembly/disassembly of this engine is a socket wrench, but there are many different sized bolt heads, so different sized sockets were needed.  It is understandable that bolts will be different lengths and sizes because they connect different parts, some of which need to be more secure than others.  However, if all the bolts had the same sized head, it would be much easier to get inside the engine block and perform repairs.
-At the product level it is difficult to suggest many changes because this is a good, effecient engine that is only a little more than ten years old.  Without making any significant alterations to the actual types of parts that this engine has, the best update possible would be materials.  As lighter, stronger, and more wear resistant metal alloys and plastics are developed, they could replace some of the old aluminum and steel parts to reduce weight and friction in the engine, while increasing durability and functionality.  This would be especially useful for parts such as the pistons, transmission, and clutch, which undergo alot of strain and need to maitain high functionality.  Also, a lighterweight engine would, in turn, increase fuel efficiency.  One modification that could be done immediatly to increase performance would be to add a turbo or supercharger.  These are essentially air compressors that pump more oxygen into the fuel mixture to increase horsepower.
+At the product level it is difficult to suggest many changes because this is a good, efficient engine that is only a little more than ten years old.  Without making any significant alterations to the actual types of parts that this engine has, the best update possible would be materials.  As lighter, stronger, and more wear resistant metal alloys and plastics are developed, they could replace some of the old aluminum and steel parts to reduce weight and friction in the engine, while increasing durability and functionality.  This would be especially useful for parts such as the pistons, transmission, and clutch, which undergo a lot of strain and need to maintain high functionality.  Also, a lighter weight engine would, in turn, increase fuel efficiency.  One modification that could be done immediately to increase performance would be to add a turbo or supercharger.  These are essentially air compressors that pump more oxygen into the fuel mixture to increase horsepower.
-Another major suggestion for the manufacturer of this engine deals with environmental sustainability.  Motorcycles are already very fuel efficient machines because they are light weight.  However, given the recent gas crises and the push to make all vehicles more fuel efficient, new technology could be used to make this engine more environmentally friendly.  A motorcycle that uses alternative fuel sources such as biodiesel, ethanol, electricity, or even uses hydrogen fuel cells would have extremely low emissions.  This would be very popular among riders who are conscious of their impact on the world.
+Another major suggestion for the manufacturer of this engine deals with environmental sustainability.  Motorcycles are already very fuel efficient machines because they are light weight.  However, given the recent gas crises and the push to make all vehicles more fuel efficient, new technology could be used to make this engine more environmentally friendly.  A motorcycle that uses alternative fuel sources such as Bio-diesel, ethanol, electricity, or even uses hydrogen fuel cells would have extremely low emissions.  This would be very popular among riders who are conscious of their impact on the world.
 ==References==
 Wahlster, K. (2008). 1994 Honda CBR600F2. Retrieved from Bke Bandit: http://www.bikebandit.com/houseofmotorcycles/honda-motorcycle-cbr600f2-1994/o/m2043