Engine starter having clutch for connection to engine
First Claim
1. An engine starter for starting an engine, the engine starter being mounted on a vehicle that has a system to suspend fuel supply to the engine automatically when predetermined conditions to turn off the engine are met, the engine starter comprising:
- a motor to generate a rotating force to start the engine; and
a power transmission structure to transmit rotation of the motor to a crankshaft of the engine through a clutch that comprises at least a driving member connected to an output shaft of the motor and a driven member linked with the crankshaft, wherein the clutch is able to transmit torque from the driving member to the driven member by forming a connected state between the driving member and the driven member and is able to cut off transmission of torque from the driving member to the driven member by forming a disconnected state between the driving member and the driven member, and wherein a connecting rotation number defined as an upper limit of a rotation number below which the driving member and the driven member are able to change from the disconnected state to the connected state in a decreasing process of engine revolutions is set above a lower limit of the engine revolutions above which the engine under suspension of the fuel supply is able to get restarted by itself by resuming of the fuel supply.
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Accused Products
Abstract
In an engine starter of the present invention, a driving shaft to output a rotating force and a crankshaft of an engine are linked continuously. The engine starter comprises a one-way clutch to prevent an overrun of an armature after the engine starts. In the one-way clutch, a connecting rotation number in which an inner ring and an outer ring change from a disconnected state to a connected state in a decreasing process of engine revolutions is set above a lower limit of the engine revolutions above which the engine under suspension of the fuel supply is able to get restarted by itself by resuming of fuel supply. Therefore, the engine is always able to get restarted quickly even in a low-rotation range.
47 Citations
15 Claims
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1. An engine starter for starting an engine, the engine starter being mounted on a vehicle that has a system to suspend fuel supply to the engine automatically when predetermined conditions to turn off the engine are met, the engine starter comprising:
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a motor to generate a rotating force to start the engine; and
a power transmission structure to transmit rotation of the motor to a crankshaft of the engine through a clutch that comprises at least a driving member connected to an output shaft of the motor and a driven member linked with the crankshaft, wherein the clutch is able to transmit torque from the driving member to the driven member by forming a connected state between the driving member and the driven member and is able to cut off transmission of torque from the driving member to the driven member by forming a disconnected state between the driving member and the driven member, and wherein a connecting rotation number defined as an upper limit of a rotation number below which the driving member and the driven member are able to change from the disconnected state to the connected state in a decreasing process of engine revolutions is set above a lower limit of the engine revolutions above which the engine under suspension of the fuel supply is able to get restarted by itself by resuming of the fuel supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification