X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2162273 for flyrotary@lancaironline.net; Fri, 06 Jul 2007 15:57:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id l66JuThm016808 for ; Fri, 6 Jul 2007 15:56:30 -0400 (EDT) Message-ID: <001701c7c007$c4e14470$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Fw: [FlyRotary] New subject: Pulstar Plugs Date: Fri, 6 Jul 2007 15:56:39 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01C7BFE6.3D7E7730" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C7BFE6.3D7E7730 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks for the insight, Bill. I was under the erroneous impression that = a pulse with a very quick rise time might jump the gap before sufficent = current had leaked off through the carbon/lead deposits. Below is the response I got from the Pulstar folks to my question about = fouling. Ed Ed Thank you for your interesting question. =20 Plug fouling is the result of an improper choice: A:F ratio Plug heat range Thermostat Or: Valve seat leak Or other condition that allows oil or anything other than fuel and air = into the combustion chamber =20 The conductor (electrode) on the Pulstar is no different than what is on = spark plugs. You need good conductivity to aid in the ionization of the = spark gap. If liquid deposits (oil or fuel) are not percolated off = before the next cycle, the added resistance of the deposit is going to = compromise the ionization event and may even prevent it (misfire) =20 The Pulstar discharge follows the ionization event to drive electrical = power into the fuel charge, so in answer to your question, it has no = effect on "blowing" the deposit off of the electrode. =20 However, because the high energy discharge results in more of the fuel = mixture being burned, there is less opportunity for deposits to collect. =20 Lou Camilli =20 =20 From: Ed Anderson [mailto:eanderson@carolina.rr.com]=20 Sent: Thursday, July 05, 2007 6:04 PM To: info@enerpulse.com Subject: Fouled spark plug =20 Nice concept, but one question. What is the Pulstar performance in = sparking a fouled sparkplug, either carbon fouled or lead fouled - any = test done? =20 Ed ----- Original Message -----=20 From: WRJJRS@aol.com=20 To: Rotary motors in aircraft=20 Sent: Friday, July 06, 2007 2:25 PM Subject: [FlyRotary] Re: Fw: [FlyRotary] New subject: Pulstar Plugs In a message dated 7/6/2007 6:19:52 AM Pacific Standard Time, = eanderson@carolina.rr.com writes: Jesse, I sent an e mail to these folks asking them if they had any = data on=20 how their plug performed under fouling conditions - both carbon and = lead.=20 Be interesting to see what the response is - if I get one of course. $25 is a lot to pay when the stock ones run $5-7 a piece, but if you = fly=20 much with 100LL then you will find you need to replace them around = 25 hours=20 or so. So if this plug overcame the fouling problem and gave a much = longer=20 life, then they might be worth the price for that reason along. Ed >> Isn't 25 bucks each a lot to pay for an air gapped plug ? There = may be >> more to them than that but that is my first reaction. We used to = have to=20 >> move plug wire back off plug or cut small gap in wire to get a = plug to=20 >> fire when valve guide seals went out and/or some other reason = loaded=20 >> combustion chamber with oil. I first learned that from seeing = used cars=20 >> when worn out and using a lot of oil with wire gapped and taped = where=20 >> didn't notice. >> jofarr, soddy tn >> It won't prevent fouling. If you have carbon on the insulator it will = foul, end of story. The problem isn't having enough voltage to fire. The = problem is being sure that the discharge jumps the gap instead of = running down the face of the insulator in the carbon. You can have a = million volts but if the spark runs on the surface it won't run any = better. I have seen all kinds of high energy CDI systems. They never = worked any better. Bill Jepson -------------------------------------------------------------------------= ----- See what's free at AOL.com. ------=_NextPart_000_0014_01C7BFE6.3D7E7730 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks for the insight, = Bill.  I=20 was under the erroneous impression that a pulse with a very quick rise = time=20 might jump the gap before sufficent current had leaked off through the=20 carbon/lead deposits.
 
Below is the response I got = from the=20 Pulstar folks to my question about fouling.
 
Ed
 

Ed

Thank=20 you for your interesting question.

 

Plug=20 fouling is the result of an improper choice:

A:F=20 ratio

Plug=20 heat range

Thermostat

Or:

Valve=20 seat leak

Or=20 other condition that allows oil or anything other than fuel and air into = the=20 combustion chamber

 

The=20 conductor (electrode) on the Pulstar is no different than what is on = spark=20 plugs. You need good conductivity to aid in the ionization of the spark = gap. If=20 liquid deposits (oil or fuel) are not percolated off before the next = cycle, the=20 added resistance of the deposit is going to compromise the ionization = event and=20 may even prevent it (misfire)

 

The=20 Pulstar discharge follows the ionization event to drive electrical power = into=20 the fuel charge, so in answer to your question, it has no effect on = =93blowing=94=20 the deposit off of the electrode.

 

However,=20 because the high energy discharge results in more of the fuel mixture = being=20 burned, there is less opportunity for deposits to = collect.

 

Lou=20 Camilli

 

 

From: Ed = Anderson=20 [mailto:eanderson@carolina.rr.com]
Sent: Thursday, July 05, = 2007 6:04=20 PM
To: info@enerpulse.com
Subject: Fouled spark=20 plug

 

Nice concept,=20 but one question.  What is the Pulstar performance in sparking a = fouled=20 sparkplug, either carbon fouled or lead fouled - any test=20 done?

 

Ed

----- Original Message -----
From:=20 WRJJRS@aol.com
Sent: Friday, July 06, 2007 = 2:25 PM
Subject: [FlyRotary] Re: Fw: = [FlyRotary]=20 New subject: Pulstar Plugs

In a message dated 7/6/2007 6:19:52 AM Pacific Standard Time, eanderson@carolina.rr.com=20 writes:
Jesse,=20 I sent an e mail to these folks asking them if they had any data on =
how=20 their plug performed under fouling conditions - both carbon and = lead.
Be=20 interesting to see what the response is - if I get one of = course.

$25=20 is a lot to pay when the stock ones run $5-7 a piece, but if you fly =
much with 100LL then you will find you need to replace them = around 25=20 hours
or so.  So if this plug overcame the fouling problem = and gave=20 a much longer
life, then they might be worth the price for that = reason=20 along.

Ed
>> Isn't 25 bucks each a lot to pay for an = air=20 gapped plug ? There may be
>> more to them than that but = that is my=20 first reaction. We used to have to
>> move plug wire back = off plug=20 or cut small gap in wire to get a plug to
>> fire when = valve guide=20 seals went out and/or some other reason loaded
>> = combustion=20 chamber with oil. I first learned that from seeing used cars =
>>=20 when worn out and using a lot of oil with wire gapped and taped = where=20
>> didn't notice. <g>
>> jofarr, soddy=20 tn
>>
It won't prevent fouling. If you have carbon on the insulator it = will=20 foul, end of story. The problem isn't having enough voltage to fire. = The=20 problem is being sure that the discharge jumps the gap instead of = running down=20 the face of the insulator in the carbon. You can have a million volts = but if=20 the spark runs on the surface it won't run any better. I have seen all = kinds=20 of high energy CDI systems. They never worked any better.
 
Bill Jepson



See what's free at AOL.com.=20
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