Patent US4768925A successfully refreshed from Google Patents.
US4768925A
Expired / Lapsed
US
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Support of a fuel pump in a fuel tank of a motor vehicle
Assignee: Bayerische Motoren Werke AG
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Filing: 1987-01-23
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Granted: 1988-09-06
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Expires: 2007-01-23
Abstract
Abstract A support of an intank pump at a pump support, which includes webs of elastic material that extend from the pump to the pump support in a direction deviating at an angle α from the radial which is determined by the longitudinal axis of the fuel pump. During swelling of the webs by the fuel, a rotary movement is thereby imparted to the pump without influencing the suction height. The webs may thereby have a relatively large volume as a result of which a good damping is achieved.
Inventors
- 👤 Helmut Geupel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:13
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/08; F02M37/10; F02M37/103; F04; F04D; F04D29/00; F04D29/60; F04D29/605; F04D29/606; F16; F16F; F16F2236/00; F16F2236/02; F16F2236/027
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
139 words
A mounting arrangement for an electrically driven fuel pump which is immersible in fuel in a fuel tank, said mounting arrangement comprising: pump support means fixedly disposable in a fuel tank, and a plurality of damping web means of substantially equal length and extendable from outer circumferential portions of a pump to said support means to support the pump in position on the support means, said damping web means all extending at approximately the same angle with respect to respective radii extending from a longitudinal axis of a fuel pump being supported thereby to respective support connections of radial outer ends of the damping web means at the pump support means, whereby expansion movements of the damping web means are accommodated by rotational movement of a pump being supported about its longitudinal axis without substantially changing its axial position.
Claim 2
Dependent Claim
139 words
A mounting arrangement for an electrically driven fuel pump which is immersible in fuel in a fuel tank, said mounting arrangement comprising: pump support means fixedly disposable in a fuel tank, and a plurality of damping web means of substantially equal length and extendable from outer circumferential portions of a pump to said support means to support the pump in position on the support means, said damping web means all extending at approximately the same angle with respect to respective radii extending from a longitudinal axis of a fuel pump being supported thereby to respective support connections of radial outer ends of the damping web means at the pump support means, whereby expansion movements of the damping web means are accommodated by rotational movement of a pump being supported about its longitudinal axis without substantially changing its axial position.
Claim 3
Dependent Claim
18 words
A mounting arrangement according to claim 1, wherein said web means all have an approximately similar cross section.
Claim 4
Dependent Claim
25 words
A mounting arrangement according to claim 2, wherein the fuel pump includes a cylindrical housing and the web means extend substantially tangentially to the housing.
Claim 5
Dependent Claim
26 words
A mounting arrangement according to claim 3, wherein said housing is seated in a mounting means and the web means are secured at the mounting means.
Claim 6
Dependent Claim
22 words
A mounting arrangement according to claim 4, wherein the elastic material from which the web means are made is NBR or ECO.
Claim 7
Dependent Claim
24 words
A mounting arrangement according to claim 5, wherein said support means is formed by a pot arranged at a bottom of the fuel tank.
Claim 8
Dependent Claim
14 words
A mounting arrangement according to claim 6, wherein the pot is a turbulence pot.
Claim 9
Dependent Claim
14 words
A mounting arrangement according to claim 6, wherein the pot is a quieting pot.
Claim 10
Dependent Claim
25 words
A mounting arrangement according to claim 1, wherein the fuel pump includes a cylindrical housing and the web means extend substantially tangentially to the housing.
Claim 11
Dependent Claim
18 words
A mounting arrangement according to claim 9, wherein said web means all have an approximately similar cross section.
Claim 12
Dependent Claim
26 words
A mounting arrangement according to claim 9, wherein said housing is seated in a mounting means and the web means are secured at the mounting means.
Claim 13
Dependent Claim
22 words
A mounting arrangement according to claim 1, wherein the elastic material from which the web means are made is NBR or ECO.
Claim 14
Dependent Claim
24 words
A mounting arrangement according to claim 1, wherein said support means is formed by a pot arranged at the bottom of the fuel tank.
Claim 15
Dependent Claim
14 words
A mounting arrangement according to claim 13, wherein the pot is a turbulence pot.
Claim 16
Dependent Claim
14 words
A mounting arrangement according to claim 13, wherein the pot is a quieting pot.
Claim 17
Dependent Claim
15 words
An arrangement according to claim 1, wherein said angle is between 10 and 40 degrees.
Claim 18
Dependent Claim
13 words
An arrangement according to claim 16, wherein said angle is approximately 40 degrees.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |