US4557235A
Expired / Lapsed
US
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Fuel injection quantity controlling device for diesel engine with vertical crankshaft
Assignee: Yanmar Co Ltd
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Filing: 1983-12-02
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Granted: 1985-12-10
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Expires: 2003-12-02
Abstract
Abstract Disclosed is a fuel injection quantity controlling device for diesel engines having a vertically extending crankshaft. The device has a control rod disposed in parallel with the crankshaft. In the event of a failure in the mechanism for vertically and reciprocatingly driving the control rod, e.g. a lever, link or the like, the control rod moves downward by the force of gravity to automatically stop the fuel supply to the unit injectors.
Inventors
- 👤 Koichi Amemori
- 👤 Yosuke Takahashi
- 👤 Manabu Miyazaki
- 👤 Hiroaki Tsukahara
- 👤 Toshihiko Kawabe
- 👤 Toshio Banba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:03
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/08; F02M; F02M59/00; F02M59/20; F02M59/24; F02M59/26; F02M59/28; F02D; F02D17/00; F02D17/04; F02M63/00; F02M63/02; F02M63/0205; F02M63/022; F02B3/00; F02B3/06; F02B61/00; F02B61/04; F02B61/045
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
In a diesel engine provided with a fuel injection device and provided with a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod for controlling quantity of fuel injection from said fuel injection device and disposed to extend in a vertical direction and parallel with said crankshaft, said control rod being so arranged as to cut a fuel supply to said fuel injection device when it is moved by its weight in a direction of force of gravity.
Claim 2
Dependent Claim
82 words
In a diesel engine provided with a fuel injection device and provided with a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod for controlling quantity of fuel injection from said fuel injection device and disposed to extend in a vertical direction and parallel with said crankshaft, said control rod being so arranged as to cut a fuel supply to said fuel injection device when it is moved by its weight in a direction of force of gravity.
Claim 3
Dependent Claim
32 words
A fuel injection quantity controlling device for a diesel engine having a vertical crankshaft according to claim 1, wherein said fuel injection device includes a fuel injection pump and a unit injector.
Claim 4
Dependent Claim
46 words
A fuel injection quantity controlling device for a diesel engine having a vertical crankshaft according to claim 2, wherein said control rod is disposed at an opposite side of a control lever of said unit injector to a side at which said unit injector is extracted.
Claim 5
Dependent Claim
76 words
A fuel injection quantity controlling device for a diesel engine having a vertical crankshaft according to claim 2, wherein said control rod has a portion of a polygonal cross-section, and wherein an adjuster fitting said portion of polygonal cross-section has a saddle-like form, said adjuster being provided with an elongated hole so as to be able to move in a longitudinal direction of said control rod as a bolt screwed to said control rod is loosened.
Claim 6
Dependent Claim
49 words
A fuel injection quantity controlling device for a diesel engine having a vertical crankshaft according to claim 2, wherein a control lever has two arms defining therebetween a U-shaped recess receiving a pin of an adjuster, said arms having a smooth opening surface along an inner peripheral edge thereof.
Claim 7
Dependent Claim
121 words
In a diesel engine having unit injectors and a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod provided on a cylinder head of the engine and extending in a vertical direction parallel with said crankshaft, said control rod being reciprocatable in a longitudinal direction thereof; a plurality of adjusters attached to said control rod and each provided with a pin; and a control lever provided on the rear portion of each of said unit injectors and each engaging one of said pins; wherein said unit injectors are constructed such that a fuel injection quantity is decreased when said control lever is rotated clockwise and is increased when the control lever is rotated in a counter-clockwise direction.
Claim 8
Dependent Claim
121 words
In a diesel engine having unit injectors and a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod provided on a cylinder head of the engine and extending in a vertical direction parallel with said crankshaft, said control rod being reciprocatable in a longitudinal direction thereof; a plurality of adjusters attached to said control rod and each provided with a pin; and a control lever provided on the rear portion of each of said unit injectors and each engaging one of said pins; wherein said unit injectors are constructed such that a fuel injection quantity is decreased when said control lever is rotated clockwise and is increased when the control lever is rotated in a counter-clockwise direction.
Claim 9
Dependent Claim
89 words
In a diesel engine having unit injectors and a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod for controlling a quantity of fuel injection from said unit injectors and disposed on a cylinder head so as to extend in a vertical direction parallel with said crankshaft; an adjusting lever for sliding said control rod in a longitudinal direction of a control lever; and a stop lever for stopping said engine, said adjusting lever and said stop lever being supported by a common support shaft.
Claim 10
Dependent Claim
89 words
In a diesel engine having unit injectors and a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod for controlling a quantity of fuel injection from said unit injectors and disposed on a cylinder head so as to extend in a vertical direction parallel with said crankshaft; an adjusting lever for sliding said control rod in a longitudinal direction of a control lever; and a stop lever for stopping said engine, said adjusting lever and said stop lever being supported by a common support shaft.
Claim 11
Dependent Claim
94 words
In a diesel engine having unit injectors and a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod adapted for controlling a quantity of fuel injection from said unit injectors and disposed on a cylinder head of said engine so as to extend in parallel with said crankshaft; a stop lever for sliding said control rod in the direction of a force of gravity; and a decompression lever for opening an exhaust valve, said stop lever and said decompression lever being adapted to be operatively connected to each other selectively.
Claim 12
Dependent Claim
94 words
In a diesel engine having unit injectors and a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod adapted for controlling a quantity of fuel injection from said unit injectors and disposed on a cylinder head of said engine so as to extend in parallel with said crankshaft; a stop lever for sliding said control rod in the direction of a force of gravity; and a decompression lever for opening an exhaust valve, said stop lever and said decompression lever being adapted to be operatively connected to each other selectively.
Claim 13
Dependent Claim
124 words
In a diesel engine including a cylinder head provided with a fuel injection device and provided with a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod for controlling a quantity of fuel injection from said fuel injection device and disposed to extend in a vertical direction and parallel with said crankshaft, said control rod being so arranged as to cut a fuel supply to said fuel injection device when the control rod is moved by its weight in a direction of force of gravity, said fuel injection device including a fuel injection pump and unit injectors, said control rod being adapted to be temporarily fixed to said cylinder head during adjustment of fuel injection quantity of said unit injectors.
Claim 14
Dependent Claim
124 words
In a diesel engine including a cylinder head provided with a fuel injection device and provided with a vertically extending crankshaft, a fuel injection quantity controlling device comprising: a control rod for controlling a quantity of fuel injection from said fuel injection device and disposed to extend in a vertical direction and parallel with said crankshaft, said control rod being so arranged as to cut a fuel supply to said fuel injection device when the control rod is moved by its weight in a direction of force of gravity, said fuel injection device including a fuel injection pump and unit injectors, said control rod being adapted to be temporarily fixed to said cylinder head during adjustment of fuel injection quantity of said unit injectors.
Claim 15
Dependent Claim
54 words
A fuel injection quantity controlling device for a diesel enging having a vertical crankshaft according to claim 9, wherein a part of said engine which makes said engine inoperative when it is left attached to said control rod is used as a fixing jig for temporarily fixing said control rod to said cylinder head.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |