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US4697557A Expired / Lapsed US ⏱️ 0.0 years remaining

V-type internal combustion engine

Assignee: Kawasaki Motors Ltd
•
Filing: 1986-06-17
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Granted: 1987-10-06
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Expires: 2006-06-17
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Abstract

Abstract A V-type internal combustion engine in which cylinders each including a cylinder skirt portion projecting into a crankcase are arranged in a V-shape, a governor device is disposed within the crankcase, central axes of the cylinders are offset from each other in an axial direction along a crankshaft supported in the crankcase, and a rotational speed transmission system for transmitting a rotational speed of a governor gear to a governor lever shaft is engages a rearward side of the cylinder skirt portion of a cylinder spaced forward from a rearward most cylinder as viewed among the crankshaft central axis. A single intake manifold is adapted to bridge cylinder heads in a V-bank defined between the cylinders. A carbureter is in fluid communication with the intake manifold. One end of the governor lever shaft is disposed in the V-bank. An intake control for controlling the carbureter in cooperation with one end of the lever shaft is disposed in the vicinity of the carbureter.

Inventors

  • 👤 Shinichi Tamba
  • 👤 Noriyuki Ueki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 01:47
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02D; F02D31/00; F02F; F02F7/00; F02F7/006

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 121 words
A V-type internal combustion engine comprising: a crankcase; a crankshaft having a central axis and supported in said crankcase; governor means for representing a rotational speed of the engine, said governor means being located within said crankcase; cylinders each including a cylinder skirt portion projecting into said crankcase, said cylinders being arranged in a V-shape and having center axes offset from each other in a direction along said crankshaft central axis; and a rotational speed transmission system for transmitting the rotational speed of a governor gear to a governor lever shaft, said rotational speed transmission system engaging a rearward side of the cylinder skirt portion of a cylinder spaced forward from a rearmost cylinder as viewed along the crankshaft central axis.
Claim 2
Dependent Claim 121 words
A V-type internal combustion engine comprising: a crankcase; a crankshaft having a central axis and supported in said crankcase; governor means for representing a rotational speed of the engine, said governor means being located within said crankcase; cylinders each including a cylinder skirt portion projecting into said crankcase, said cylinders being arranged in a V-shape and having center axes offset from each other in a direction along said crankshaft central axis; and a rotational speed transmission system for transmitting the rotational speed of a governor gear to a governor lever shaft, said rotational speed transmission system engaging a rearward side of the cylinder skirt portion of a cylinder spaced forward from a rearmost cylinder as viewed along the crankshaft central axis.
Claim 3
Dependent Claim 26 words
An engine according to claim 1 further comprising means for limiting a rotation of said governor lever shaft, said limiting means comprising said cylinder skirt portion.
Claim 4
Dependent Claim 16 words
An engine according to claim 1 wherein said crankshaft central axis lies in a vertical direction.
Claim 5
Dependent Claim 15 words
An engine according to claim 2, wherein said crankshaft is directed in a vertical direction.
Claim 6
Dependent Claim 80 words
An engine according to claim 1 wherein a single intake manifold is provided to bridge cylinder heads of said cylinders in a V-bank defined between the cylinders, a carburetor is in fluid communication with said intake manifold, one end of said governor lever shaft is disposed in an interior of said V-bank, and an intake control mechanism for controlling the carburetor in cooperation with said one end of said governor lever shaft is disposed in the vicinity of said carburetor.
Claim 7
Dependent Claim 19 words
An engine according to claim 5 wherein said intake control mechanism is disposed in the interior of said V-bank.
Claim 8
Dependent Claim 24 words
An engine according to claim 5 wherein said crankshaft central axis lies in a vertical direction and carburetor is of the side draft type.
Claim 9
Dependent Claim 25 words
An engine according to claim 6, wherein said crankshaft central axis lies in a vertical direction and said carburetor is of the side draft type.

References Cited (Backward Citations)

JPS572652A Cited
US4513702A Cited
US4570587A Cited
US4515120A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-10-05 1991-04-06 1991-10-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-10-05 1995-04-06 1995-10-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-10-05 1999-04-06 1999-10-06 $7700.00 Window Closed / Lapsed

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