| (19) |
 |
|
(11) |
EP 0 360 057 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
18.07.1990 Bulletin 1990/29 |
| (43) |
Date of publication A2: |
|
28.03.1990 Bulletin 1990/13 |
| (22) |
Date of filing: 01.09.1989 |
|
| (51) |
International Patent Classification (IPC)5: F01P 11/06 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB GR IT LI LU NL SE |
| (30) |
Priority: |
23.09.1988 US 248172
03.10.1988 US 256328
|
| (71) |
Applicant: Wynn Oil Company |
|
Fullerton
California 92631 (US) |
|
| (72) |
Inventors: |
|
- Vataru, Marcel
Los Angeles
California 90036 (US)
- Baylor, James L.
Fontana
California 92334 (US)
|
| (74) |
Representative: Baillie, Iain Cameron et al |
|
c/o Ladas & Parry
Altheimer Eck 2
80331 München
80331 München (DE) |
|
| |
|
| (54) |
Engine coolant flush filtering apparatus and method |
(57) A method for rapid and efficient cleaning of an internal combustion engine cooling
system includes:
a) forcing the coolant liquid from the cooling system to the exterior of that system,
b) treating the coolant liquid from the cooling system to the exterior of that system,
b) treating the coolant liquid in a zone or zones outside the cooling system, such
treating including removing contaminant from the coolant liquid,
c) returning the treated coolant liquid to the cooling system,
d) the forcing step including supplying pressurized gas to the cooling system to drive
coolant liquid therefrom,
e) the cooling system including a heat radiator including a container having a coolant
liquid fill opening, and the forcing step including employing the gas to drive coolant
liquid from the radiator via the container fill opening,
f) and including the step of controllably venting fluid including gas from the container
via the fill opening, during the step of returning the treated coolant liquid to the
cooling system.
