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1. (US4856370) Variable phase couplings

Office : United States of America
Application Number: 07091511 Application Date: 30.07.1987
Publication Number: 4856370 Publication Date: 15.08.1989
Grant Number: 4856370 Grant Date: 15.08.1989
Publication Kind : A
Prior PCT appl.: Application Number:GB86000736 ; Publication Number: Click to see the data
IPC:
F16D 3/10
F01L 1/352
F16H 35/00
F16H 37/08
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3
Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
02
adapted to specific functions
10
Couplings with means for varying the angular relationship of two coaxial shafts during motion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
34
characterised by the provision of means for changing the timing of the valves without changing the duration of opening
344
changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
352
using bevel or epicyclic gear
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
35
Gearings or mechanisms with other special functional features
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
37
Combinations of mechanical gearings, not provided for in groups F16H1/-F16H35/122
02
comprising essentially only toothed or friction gearings
06
with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
08
with differential gearing
Applicants: STIDWORTHY FREDERICK M
Inventors: Stidworthy Frederick M.
Agents: Marshall, O'Toole, Gerstein, Murray & Bicknell
Priority Data: 8529811 04.12.1985 GB
Title: (EN) Variable phase couplings
Abstract: front page image
(EN)

An assembly capable of varying the relative phase of rotation between a driving sprocket wheel and a camshaft comprises a carrier fixed to the sprocket wheel and carrying compound idler bevel gears including inner idler gears which mesh with a bevel gear fixed to the camshaft to impart rotation to the camshaft and including outer idler gears which mesh with a ring gear carried by a sleeve shaft which is adjustable in angular position by a worm gear and a worm-wheel arrangement to vary the phase of the camshaft rotation relative to the phase of the sprocket wheel rotation.


Also published as:
EP0248836ES2003581GB2183783AU1987067236WO/1987/003715