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  1. Join Date
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    #21
    Quote Originally Posted by aejhayl17 View Post
    if this happen(or meron na ba?), will this "gasoline then LPG" converted Jeepney will still carry its gasoline tank for gas usage,like other LPG vehicles,? so it will "still" use gasoline partially for start ups and maintenance purposes (like unclogging the injectors)?
    You don't really need to have a gasoline tank. In fact many of the taxi cabs in the metro have permanently disabled gasoline systems. And for the purpose of jeepneys I would suggest the more basic venturi system which seems to be more durable and requires less maintenance as compared to the more advanced SGI system.


    mapapantayan ba nito ang torque output(push/pull which is a necessity for mass loading) or over all power output ng diesel engine sir?
    If the diesel engine used by the jeepneys (in the metro) only produce 50hp yet hauls 15 to 20 people, I think a more powerful gasoline-based engine will be ok. The fact is, the existing jeepneys can do it with so much less power is because of their low speed transmission. Just match the gasoline engine with the proper low ratio transmission, it would do just fine even if their speeds would be limited to between 60 to 80 kph max.

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    #22
    We have to always remember that diesel fuel is NOT cheap. The price at the fuel pumps is subsidized and paid by someone else. It is adjusted to be "cheaper" simply because it is the easy way out for the government do to.

    We have to get out of that way of thinking. We cannot rely on government "dole-outs" forever if we are to haul our sorry asses up from where our society is now in.

    Auto-LPG is not "the answer" for the "ills of society" but it can be part of the way to get to the whole solution, or at least for some segments of the transport sector.

  3. Join Date
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    #23
    how about this mga sir?



    THE NEWEST INVENTION ONLY IN THE PHILIPPINES

    [SIZE=4][SIZE=4]BILIB KA SA PINOY, BASTA PINOY PANALO KA!!!!!!!!
    [/SIZE][/SIZE]GO GREEN PHILIPPINES!
    [SIZE=3][SIZE=3][SIZE=3]
    [/SIZE]
    [/SIZE]
    [/SIZE]
    Making powertrains more efficient is only one part of reducing the environmental impact of vehicles. The energy required to mine and process raw materials into the components that comprise a vehicle and then transport it to the end customer can often amount to a significant fraction of the total energy used to operate the vehicle. In the town of Tabontabon in the Philippines , they have started building new taxis based on renewable materials. The bodywork is made entirely from bamboo. Since bamboo is a grass, it can be harvested and it grows back. It's also extremely strong and lightweight. Of course, this vehicle still won't come close to meeting the crash test standards in North America or Europe but for a low cost, low speed vehicle in a rural area it's a great alternative. Even the fuel is renewable as the engines in these vehicles are fueled by biodiesel produced from coconut oil.



















    [SIZE=2][SIZE=2]
    [/SIZE]
    [/SIZE]

  4. Join Date
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    #24
    sori di po na attached yung pics

  5. Join Date
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    #25
    Quote Originally Posted by ghosthunter View Post
    If the diesel engine used by the jeepneys (in the metro) only produce 50hp yet hauls 15 to 20 people, I think a more powerful gasoline-based engine will be ok. The fact is, the existing jeepneys can do it with so much less power is because of their low speed transmission. Just match the gasoline engine with the proper low ratio transmission, it would do just fine even if their speeds would be limited to between 60 to 80 kph max.
    You are correct on this GH, as I can recall way back then, we have 22 seater jeepney fleets with gasoline engines utilizing Toyota 12R and 16R engines and they have better acceleration when combine with low speed transmission and differentials. I think it has the same engine/transmission principle with the 3rd generation Toyota Dyna or ToyataAce having 2.0 gasoline engine truck base.

    Our jeepneys then ply the route of San Juan - Little Baguio and this route is a combination of up climb streets so torque is not a question.

    Today having LPG on jeepney is more likely to succeed having more fuel efficient gasoline fed injection type engine.

    I've seen a lot Toyota FX having LPG kits doing Garage To Terminal service, but since a lot of them are nearing their franchise expiration they are now less visible from the terminals. Some of them having toroidal LPG tank in the spare tire carrier underneath.

  6. Join Date
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    #26
    Quote Originally Posted by prince777 View Post
    how about this mga sir?



    THE NEWEST INVENTION ONLY IN THE PHILIPPINES

    [SIZE=4][SIZE=4]BILIB KA SA PINOY, BASTA PINOY PANALO KA!!!!!!!!
    [/SIZE][/SIZE]GO GREEN PHILIPPINES!
    [SIZE=3][SIZE=3][SIZE=3]
    [/SIZE]
    [/SIZE]
    [/SIZE]
    Making powertrains more efficient is only one part of reducing the environmental impact of vehicles. The energy required to mine and process raw materials into the components that comprise a vehicle and then transport it to the end customer can often amount to a significant fraction of the total energy used to operate the vehicle. In the town of Tabontabon in the Philippines , they have started building new taxis based on renewable materials. The bodywork is made entirely from bamboo. Since bamboo is a grass, it can be harvested and it grows back. It's also extremely strong and lightweight. Of course, this vehicle still won't come close to meeting the crash test standards in North America or Europe but for a low cost, low speed vehicle in a rural area it's a great alternative. Even the fuel is renewable as the engines in these vehicles are fueled by biodiesel produced from coconut oil.
    [SIZE=2][SIZE=2]
    [/SIZE]
    [/SIZE]
    I guess as long it isn't YOUR sorry ass riding in a bamboo car it would be alright.

    That kind of mentality is simply inhumane. Are lives in America or Europe worth more than the lives in the Philippines that we can lower the minimum engineering safety standards for the vehicles we will put on the road?

    Personally I would prefer to make my cars so that the passengers would have a chance to survive in one piece if it comes to an accident. It isn't that difficult nor resource intensive to be done that way.

    I can do a rough design right now.

    Just design starting on a basic ladder frame chassis. Do a space frame on it so the vehicle's panels will fit. The exterior and interior panels can be made from laminated bamboo composite panels, either cut from flat panels or moulded to shape. The panels would cut the need and weight of sheet metal and the chassis and frame would still provide minimum vehicle strength & safety. It would also be possible to use less metal on the chassis and spaceframe by using thinner guage steel and wrap them in laminated bamboo strips composite (similar effect to carbon fiber composite wrapped aluminum alloys used in racing) but this would increase cost and production time.
    Last edited by ghosthunter; September 21st, 2009 at 02:03 AM.

  7. Join Date
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    #27
    Quote Originally Posted by ghosthunter View Post
    I guess as long it isn't YOUR sorry ass riding in a bamboo car it would be alright.

    That kind of mentality is simply inhumane. Are lives in America or Europe worth more than the lives in the Philippines that we can lower the minimum engineering safety standards for the vehicles we will put on the road?

    Personally I would prefer to make my cars so that the passengers would have a chance to survive in one piece if it comes to an accident. It isn't that difficult nor resource intensive to be done that way.

    I can do a rough design right now.

    Just design starting on a basic ladder frame chassis. Do a space frame on it so the vehicle's panels will fit. The exterior and interior panels can be made from laminated bamboo composite panels, either cut from flat panels or moulded to shape. The panels would cut the need and weight of sheet metal and the chassis and frame would still provide minimum vehicle strength & safety. It would also be possible to use less metal on the chassis and spaceframe by using thinner guage steel and wrap them in laminated bamboo strips composite (similar effect to carbon fiber composite wrapped aluminum alloys used in racing) but this would increase cost and production time.
    pano yung testing to prove na safe nga passengers sa crash. diba may cost din yun, diba resource din yung perang gagastusin dun sa crash testing? pero sabi mo pala "my cars".

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    #28
    OT:

    Since we've talked about CNG powered buses, I`ve seen one roaming in edsa.

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    #29
    Quote Originally Posted by OyiL View Post
    pano yung testing to prove na safe nga passengers sa crash. diba may cost din yun, diba resource din yung perang gagastusin dun sa crash testing? pero sabi mo pala "my cars".

    Simple. Do computer finite element analysis at the planning and building stage. This would culminate in an actual crash test destroying one or two full chassis to prove crash safety within it's design parameters and to serve as real world comparison for computer crash modeling.

    This is better than the original proposal of simply by-passing safety outright simply because it is meant for "provincial" use and used outside of places such as America and Europe which strict safety standards are required.

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    #30
    Quote Originally Posted by ghosthunter View Post
    Simple. Do computer finite element analysis at the planning and building stage. This would culminate in an actual crash test destroying one or two full chassis to prove crash safety within it's design parameters and to serve as real world comparison for computer crash modeling.

    This is better than the original proposal of simply by-passing safety outright simply because it is meant for "provincial" use and used outside of places such as America and Europe which strict safety standards are required.
    do you already have the software to do this? open source? freeware ba? If I have a design, how much would it cost me to avail of this service(crash test) from you? I'm also dreaming to drive my own car designed by myself.

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    #31
    Quote Originally Posted by OyiL View Post
    do you already have the software to do this? open source? freeware ba? If I have a design, how much would it cost me to avail of this service(crash test) from you? I'm also dreaming to drive my own car designed by myself.
    Back in college, the micro-car design project I was in charge of was tested through FEA. The same went for the previous micro-car project before mine. So yes, DLSU has FEA. And that was over fifteen years ago!

    If you are interested, why not try contacting the MEM department in DLSU-taft if they can process your design through their FEA program (if it still exists). Include what they need to input your design into the computer (will they need a CAD based design or a scale model or simple drawings with measurements on paper).

  12. Join Date
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    #32
    Quote Originally Posted by ghosthunter View Post
    Back in college, the micro-car design project I was in charge of was tested through FEA. The same went for the previous micro-car project before mine. So yes, DLSU has FEA. And that was over fifteen years ago!

    If you are interested, why not try contacting the MEM department in DLSU-taft if they can process your design through their FEA program (if it still exists). Include what they need to input your design into the computer (will they need a CAD based design or a scale model or simple drawings with measurements on paper).
    then that means, your design, and mine, will have to go through DLSU resources, our own resorces - like time and cost. leading to the fact that crash safety IS resource intensive.

    If I provide us with an open source, linux-based, FEA software...and a 3D model of the car, would you help? - it shouldn't be that difficult because you had done it before. Or at least provide some basic tutorials. It will take me a longer time to figure it out myself kasi. and you seem to be an expert.

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    #33
    Quote Originally Posted by OyiL View Post
    then that means, your design, and mine, will have to go through DLSU resources, our own resorces - like time and cost. leading to the fact that crash safety IS resource intensive.

    If I provide us with an open source, linux-based, FEA software...and a 3D model of the car, would you help? - it shouldn't be that difficult because you had done it before. Or at least provide some basic tutorials. It will take me a longer time to figure it out myself kasi. and you seem to be an expert.

    Unfortunately, all I did (with the FEA) was provide the accurate scale model to the guy who did the actual FEA input and output.

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    #34
    Quote Originally Posted by ghosthunter View Post
    Unfortunately, all I did (with the FEA) was provide the accurate scale model to the guy who did the actual FEA input and output.
    bummer. our design wont see the light of day after all. limited resources.

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    #35
    Quote Originally Posted by OyiL View Post
    bummer. our design wont see the light of day after all. limited resources.
    Why not inquire at the College of Engineering at DLSU? It won't cost you more than a couple of phone calls and few minutes of your time to explain your requirements to the chairman of Manufacturing Engineering. Who knows, he might give you access to what you need for free?

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    #36
    Source: http://www.journal.com.ph/index.php?...c=4&aid=102384


    September 08, 2009 06:28 PM Tuesday

    [SIZE="4"]Conversion ng LPG sa jeep, pinamamadali
    [/SIZE]
    By: Jun Icban-Legaspi


    MULING umapela ang isang transport group kay Transportation and Communications Secretary Leandro Mendoza na atasan ang Land Transportation Franchising and Regulatory Board (LTFRB) na bilisan ang proseso ng re-powering program ng conversion ng 100% Liquefied Petroleum Gas (LPG) sa mga pampasaherong jeep.

    Ang panawagan ay ginawa ng grupo ng Makati Jeepney Operators Driver’s Association (MJODA) matapos makumpleto ng mga ito ang lahat ng requirements na hinihingi ng DoTC at LTFRB.

    Sinabi ni Jun Cerio, pangulo ng MJODA, na naibigay na nila lahat ang mga kaukulang mga dokumento na kailangan ng DoTC at LTFRB para sa programa sa ilalim ng Land Transportation Modernization Program ni Sec. Mendoza at Pangulong Gloria Macapagal-Arroyo.

    Ayon kay Cerio wala nang dahilan ang LTFRB sa ilalim ng pamumuno ni Chairman Alberto Suansing upang ma-delay pa ang program dahil binigyan na ito ng clerance at ng kaukulang pondo ng Pangulong Arroyo nitong nakalipas na buwan lamang.

    Ang programa ay nakapasa na rin sa lahat ng kaukulang requirements ng iba’t-ibang ahensiya ng gobyerno sa ilalim ng Clean Air Act gaya ng Department of Environment and Natural Resources (DENR), Department of Energy (DoE), Land Transportation Office (LTO), Department of Trade and Industry (DTI), TESDA at maging sa LTFRB mismo.

    Ayon sa mga opisyales at miyembro ng MJODA halos dalawang taon at kalahati silang nagtiyagang antayin ang programang ito kung kaya’t walang dahilan para maghintay pa muli sila ng matagal dahil kumpleto na sila ng lahat ng requirements test sa inter-agencies na kaalam sa programa.

    Ayon sa MJODA may libu-libong pamilya ang naghihintay sa programa upang kanilang mapakinabangan.

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    #37
    [ame]http://www.youtube.com/watch?v=XwkErzConQ0[/ame]

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    #38
    Is it just my eyes or ... are those spark plug hi-tension wires that I am seeing on that LPG-Jeepney engine, is it still a CI or an SI engine already?

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    #39
    Quote Originally Posted by ehnriko View Post
    Is it just my eyes or ... are those spark plug hi-tension wires that I am seeing on that LPG-Jeepney engine, is it still a CI or an SI engine already?
    LPG-jeepneys are using spark-ignited engines. Basically gasoline engine converted to run on Auto-LPG.

    Converting diesel engines to run on Auto-LPG requires more expensive conversion and would still require a percentage mix of diesel & LPG during normal operation.

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    #40
    Quote Originally Posted by ghosthunter View Post
    LPG-jeepneys are using spark-ignited engines. Basically gasoline engine converted to run on Auto-LPG.

    Converting diesel engines to run on Auto-LPG requires more expensive conversion and would still require a percentage mix of diesel & LPG during normal operation.
    Thanks for the info... I figured it would go into that approach since it will be more cheaper that way.

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