Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1980-01-25
1982-05-18
Braun, Leslie
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74856, 74860, 74861, 74872, 74572, 180165, B60K 4106, G05G 100
Patent
active
043298893
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a power transmission mechanism for a hybrid type fly-wheel vehicle, in which a fly-wheel is incorporated in a vehicle driven by an internal combustion engine.
BACKGROUND ART
Of recent, it has been desired to attempt, from the resources-saving standpoint, to promote energy saving to those vehicles driven by an internal combustion engine which uses gasoline as its fuel. Up to the present, however, no appropriate energy saving technique has yet been developed to this kind of vehicles.
DISCLOSURE OF INVENTION
The present invention aims at attaining the energy saving purpose by a simple construction of such vehicles with the internal combustion engine as their driving source.
The abovementioned purpose of the present invention can be achieved by a power transmission mechanism for a hybrid type fly-wheel vehicle having a fly-wheel which receives power from a drive shaft of the internal combustion engine, a propeller shaft which receives the power from the fly-wheel, a clutch mechanism which is connected and disconnected in accordance with numbers of revolution of the internal combustion engine provided in a power transmission system for the abovementioned drive shaft and the fly-wheel, a first control mechanism which disconnects the abovementioned clutch mechanism and closes a throttle valve by detecting that the numbers of revolution of the internal combustion engine have increased to a predetermined value, and a second control mechanism which detects decrease in the numbers of revolution of the fly-wheel, opens the abovementioned throttle valve, and again connects the clutch mechanism.
As mentioned above, when the internal combustion engine reaches predetermined numbers of revolution, the numbers of revolution of the internal combustion engine is reduced to that of an idling state and the vehicle is changed to its fly-wheel running, so that the present invention is able to attain the energy saving purpose. In addition, its construction is simple.
BRIEF EXPLANATIONS OF DRAWING
FIG. 1 is an explanatory diagram of operation of one embodiment;
FIG. 2 is a cross-sectional view showing a relationship between an electromagnetic clutch and gear/fly-wheel;
FIG. 3 is an explanatory diagram of operation of another embodiment.
BEST MODE TO PRACTISE THE INVENTION
In FIG. 1, 1 refers to a fly-wheel casing, within which a fly-wheel 3 is supported on a shaft 2 in a freely rotatable manner. Also, a drive shaft 4 which receives power from the internal combustion engine and a propeller shaft 5 which is led to a differential gear are respectively supported in a rotatable manner on a side wall and a partition wall of the casing.
A plurality of ring gears 5.sub.1 -5.sub.n are formed in a concentric and circumferential manner on the surface of the abovementioned fly-wheel 3 opposite the shafts 4, 5. The ring gears are meshed with drive gears 61, 62 rotatably supported on the drive shaft 4, reverse gears 71, 72 rotatably supported on the propeller shaft 5, and driven gears 8.sub.1 -8.sub.n disposed in confrontation to the reverse gears with the shaft 2 as the separating point.
FIG. 2 shows one example of the electromagnetic clutch MC which connects and disconnects each of the abovementioned gears with and from the drive shaft 4 or the propeller shaft 5, which is constructed with a rotational disc 9 fixed on the drive shaft 4, a clutch disc 10 spline-connected with the inner peripheral surface of the rotational disc 9, a friction plate 11 fixed on a gear 6 in confrontation to the clutch disc 10, and an electromagnet 12 provided in the clutch disc 10 as an integral part thereof. A ring-shaped contact 13 is fixed on the drive shaft 4, and the contact is connected with the electromagnet 12 through a lead wire 14 passing through a hole 41 (or a groove formed in the outer peripheral surface) of the drive shaft 4. A contact 15 is electrically contacted to the abovementioned ring-shaped contact 13. Electric conduction to the contact piece is controlled by the numbers of revolution of the
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