← Back to Patent Explorer
US4325337A Expired / Lapsed US ⏱️ 0.0 years remaining

RPM Governor for a fuel injection pump

Assignee: Robert Bosch GmbH
•
Filing: 1979-10-02
•
Granted: 1982-04-20
•
Expires: 1999-10-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An rpm governor is proposed, in which intervention into the regulation process can be made directly via a magnet, so that the degree of proportionality, particularly with isostatic governors, can be lowered to a minimum.

Inventors

  • 👤 Franz Eheim
  • 👤 Gerald Hofer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 03:59
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02D1/08; F02M; F02M41/00; F02M41/08; F02M41/10; F02M41/12; F02M41/123; F02M41/125; F02M41/126

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 210 words
In an rpm governor for a fuel injection pump of an internal combustion engine which includes a quantity adjustment means for determining the quantity of fuel injected, said quantity adjustment means being movable along a predetermined path between a first position at which a maximum quantity of fuel is injected and a second position at which a minimum quantity of fuel is injected, a first shaft, a governor lever means for positioning said quantity adjustment means, said governor lever means being pivotable about said first shaft and coupled to said quantity adjustment means, an rpm adjuster means for exerting a force on said governor lever means proportional to the rpm of the internal combustion engine, restoring force means for exerting a force on said governor lever means counter to the force exerted on said governor lever means by said rpm adjuster means, and regulation intervention means, actuatable by an electronic control device which processes at least one engine parameter, for varying the setting of said rpm governor, the improvement wherein said regulation intervention means comprises an electromagnet coupled to said first shaft and said first shaft is movable by said electromagnet along a path orthogonal to the axis of said first shaft to vary the setting of said rpm governor.
Claim 2
Dependent Claim 210 words
In an rpm governor for a fuel injection pump of an internal combustion engine which includes a quantity adjustment means for determining the quantity of fuel injected, said quantity adjustment means being movable along a predetermined path between a first position at which a maximum quantity of fuel is injected and a second position at which a minimum quantity of fuel is injected, a first shaft, a governor lever means for positioning said quantity adjustment means, said governor lever means being pivotable about said first shaft and coupled to said quantity adjustment means, an rpm adjuster means for exerting a force on said governor lever means proportional to the rpm of the internal combustion engine, restoring force means for exerting a force on said governor lever means counter to the force exerted on said governor lever means by said rpm adjuster means, and regulation intervention means, actuatable by an electronic control device which processes at least one engine parameter, for varying the setting of said rpm governor, the improvement wherein said regulation intervention means comprises an electromagnet coupled to said first shaft and said first shaft is movable by said electromagnet along a path orthogonal to the axis of said first shaft to vary the setting of said rpm governor.
Claim 3
Dependent Claim 35 words
An improved rpm governor, as described in claim 1, wherein said electromagnet is a rotary electromagnet having an output shaft, and said first shaft is disposed eccentrically on said output shaft of said rotary electromagnet.

References Cited (Backward Citations)

US3661130A Cited
US4036193A Cited
US3841286A Cited
DE2403081A1 Cited
DE2503346A1 Cited
US4220128A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-04-19 1985-10-19 1986-04-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-04-19 1989-10-19 1990-04-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-04-19 1993-10-19 1994-04-20 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag