12th January 2009, 12:33 AM
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 | Chairperson of WARFA | | Join Date: Sep 2005 Location: WA
Posts: 2,339
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| Re: Combined fuel heater/filter and engine oil filter
I have received the following reply to my enquiry for more detail. Quote:
Dear Tony,
First of all many thanks for your detailed interest in our products, as this
concept is still recent there are inevitably technical issues that need to
be elaborated.
Before going into more in detail below, please rest assured we would not
process any order without checking the compatibility by the vehicle's
details and in case of doubt - even ask for a picture of the present spin on
oil filter mounted on the engine block.
Filter Rating:
The filter rating for the engine oil is important:
1.We do not run any experiment and use German OEM quality filters from
Mann, Mahle or Hengst as a basic component.
2.Filter Selection per vehicle:
MANN+HUMMEL Group Online Catalogue is the website we work with on a daily basis to double check ratings and specs. We use this site as a working tool, the company has been in the oil filter business for the last 30 years, their web site is very organized and we have managed to find all the suitable oil filter cross references so far.
You will also find on our Website
Greenbull a vehicle listing, this is
not complete however as more and more vehicles switch to the KYOTO filter
and we cannot catch up.
Our KYOTO filters are equipped with the identical functions and safety
features of the regular OEM motor oil filters:
-By pass valve: this is important in case an engine oil filter clogs up and
would stop the flow of oil back to the engine.
-Retain Valve: makes the filter retain a certain amount of oil when the
engine stops, this ascertains immediate flow of oil upon restarting the
engine.
-Fit to the oil filter seat - sealings: most of our on stock filters use
gaskets that have ID 62 OD 72 mm so do appr. 90% in the market. We can of course also use other seats threading types in case needed, please see a sample of a Mazda below.
-Threadings: As you can see in our brochure we provide the most common
threadings i.e.3/4" 16 UNF, M20 x 1.5, 1" 12 UNF ex stock in three
capacities ex stock, others we can make upon request.
So we can cover the majority of French(mostly M20x 1.5), German (mostly 3/4" 16 UNF), Japanese and Italian (M20 x 1.5 again) small to mid size Diesel engines as well as tractors.
-Overall Filter capacity for the engine oil: we recommend for oversize or
same size- never less capacity.
-Practical example for say your Mazda 626
(I hope I took the right year)
please see this site
MANN-FILTER Catalogue Europe (Online) ) we can take exactly this filter and make a KYOTO Filter out of it. Size medium for the KYOTO filter.
Overall sizing will therefore depend on the engine oil filters used
presently and on the fuel consumption for the fuel filter part.
We offer
SMALL up to appr. 10 ltr-100km
MEDIUM up to appr. 15 ltr
TRACTOR up to appr. 10 ltr
TRUCK up to appr 30 ltr
-OD Most filter ratings in the engine compartment go from 76 mm to 93 mm.
We opted for the OD of 93mm(94mm for the KYOTO filter OD) this is how we can cover appr. 95% of the market.
Fuel Filter considerations:
I have perhaps not sent to you the latest version of our leaflet, for which
I apologize. Please find attached the brochure.
We have changed the fuel filter spec from 5 micron to 20 micron, so they can also be used for recycled vegetable oil applications.
Normally in a setup for Diesel we talk about 2 inline filters, one with
appr. 40-100 microns right after the tank - or in the tank - to take out
the deposits or small flakes that can get dissolved from different fuels,
(especially the advent of biodiesels has caused some problems as it is a
solvent).
This first filter or primary filter should be used before the Fuel Pump or
as we suggest by using the Facet Gold Flow as a fuel pump with a prefilter
integrated that can be washed. The Secondary filter before the injection
pump normally goes from 5 to 1 micron(Common Rail).
See attached a diagram that in principle I am sure you are already familiar
with.
The KYOTO filter actually filters up to 20 micron thereby not allowing
course residues to go into the secondary filter. Fine particles pass the
KYOTO filter and will be picked up by the secondary filter.
The big adavantage perhaps not so important for Australia is the avoidance
of cold plugging, when in Winter conditions the filters plug up from parafin
deposits.
So far we have not experienced a premature plugging of the KYOTO filter
before the normal change of the engine oil filter.
The forced change of the 2 filters simultaneously actually adds up to more
safety. Normally SVO or recycled cooking oil is filtered down to appr. 5
microns or finer before being poured into the tank.
If however, badly filtered fuel is used the KYOTO filter will plug up, and
if I may add it should do so instead of letting particles go into the
injection system.
We can, by reversing the flow of the fuel take out the deposits from the
fuel filter section- should nevertheless the fuel filter clog up. This is
achieved by opening the 2 fuel hoses at the connections before the secondary
filter or in the case of the 2 Tank system before the fuel selector/magnetic
valves.
Drawbacks and Limitations of this Filter Concept:
So far for Spin on Filters only
When changing the KYOTO Filter loss of appr. 0.25 ltr of fuel.
Higher Filter cost than a Motor Oil Spin On Filter
On some smaller cars tight space for installations
Details on the heat exchange:
In prinicple the KYOTO filter delivers heated plant oil reliable for a
smooth functioning, normally the fuel with a warmed up engine leaves at a
temperature range of 60-70 degrees.
The limitations as to injection systems - 1 Tank and 2 Tank systems apply as well.
The final details how we manage the heat exchange are proprietary know how from a German Technical University and cannot be disclosed.
Advantages are numerous and listed in the brochure, perhaps with the
exception of one overlooked detail-air cooled Diesel engines(Deutz for
example), in this case I am sure you agree with me it is very difficult to
install a heat exchanger with a coolant!
Mercedes Filters bolted to the engine block:
We are in the last stages of developing a so called version TOP for these
type of filters as they become very popular amongst the latest Common Rail
models. However I am afraid for the old Mercedes we are not going to develop
the kit as there are only a few left.
With best regards from a cold wintery Austria
Hans Pirker
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