Title:
FUEL FILTER ASSEMBLY WITH PRIMING PUMP AND HEATING DEVICE
Document Type and Number:
WIPO Patent Application WO2001092714
Kind Code:
A3
Abstract:
A fuel filter comprises a filter head (302) having an inlet (306) and an outlet (308). A filter element (304) is connectable to a nipple portion (432) in the filter head. An actuating projection (484) supported by the element is engageable with a valve element (436) in the nipple portion to open flow through the nipple portion when the filter element is attached to the filter head. The filter head includes an annular threaded peripheral flange (394), and the element includes a corresponding annular threaded peripheral flange (452) which together cooperate to secure the element to the head. A manual priming pump (310) in the filter head includes a pair of check valves (372, 386) to control the flow of fluid through the head when priming the filter. A heater assembly (400) includes a heater pan (408) which encloses heater elements (406) and also includes the nipple portion (432), formed unitary therewith.
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Inventors:
JENSEN RUSSELL D
Application Number:
PCT/US2001/017058
Publication Date:
March 21, 2002
Filing Date:
May 24, 2001
Export Citation:
Assignee:
PARKER HANNIFIN CORP (US)
International Classes:
B01D27/00; B01D29/11; B01D29/60; B01D29/90; B01D29/92; B01D35/02; B01D35/153; B01D36/00; F02M37/16; F02M37/20; F02M37/26; F02M37/30; F02M37/48; (IPC1-7): F02M37/22; F16K15/06
Foreign References:
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| DE3020319A1 | 1981-12-03 | |||
| GB2140319A | 1984-11-28 | |||
| US4470301A | 1984-09-11 | |||
| US4844793A | 1989-07-04 | |||
| US5362392A | 1994-11-08 | |||
| EP0657199A2 | 1995-06-14 | |||
| US5858227A | 1999-01-12 | |||
| EP0718021A2 | 1996-06-26 | |||
| US6024869A | 2000-02-15 | |||
| US4834885A | 1989-05-30 | |||
| US3540473A | 1970-11-17 | |||
| US2844164A | 1958-07-22 |
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