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US 10,260,475 B2Granted
Internal combustion engine and garden tool
AssigneeSuzhou Cleva Precision Machinery & Technology Co., Ltd.
InventorsHong Chen, Zhao Kong
Life of this patent
Estimating the term…
Abstract
An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder, a crankshaft configured to be driven by the piston, a fuel supply system for supplying an air-fuel mixture to the cylinder, an ignition system, an electric starting system including a starter motor, and an ultracapacitor mounted on the engine, the ultracapacitor configured to power the starter motor to start the engine. A related garden tool is also disclosed.
Claims9
An internal combustion engine comprising:
- an engine block including a cylinder;
- a piston positioned within the cylinder, the piston reciprocating in the cylinder along a first axis;
- a crankshaft configured to be driven by the piston;
- a fuel supply system for supplying an air-fuel mixture to the cylinder;
- an ignition system;
- an electric starting system including a starter motor having an output shaft, an input gear being mounted for rotation with the output shaft;
- a clutch mechanism mounted to the crankshaft;
- a reduction mechanism driven by the input gear, the reduction mechanism having a transmission gear, an output gear, and a coil spring, the transmission gear having a first toothed ring driven by the input gear and a second toothed ring that rotates with the first tooth ring and that drives the output gear, the coil spring being mounted coaxial with the output gear and having a first end attached to the output gear and a second end attached to the clutch mechanism, the coil spring storing a kinetic energy from the starter motor by coiling and releasing the kinetic energy to the crankshaft via the clutch once the stored kinetic energy reaches a predetermined level;
- and
- an ultracapacitor module mounted on the engine, the ultracapacitor module configured to power the starter motor to start the engine, the ultracapacitor module including at least one single ultracapacitor having a second axis extending in a longitudinal direction thereof, and the first axis configured to be not parallel to the second axis.
7 more elements
A garden tool comprising:
- a torque unit including a small type internal combustion engine and a working unit driven by the torque unit, the engine including:
- an engine block including a cylinder;
- a piston positioned within the cylinder, the piston reciprocating in the cylinder along a first axis;
- a crankshaft configured to be driven by the piston;
- a fuel supply system for supplying an air-fuel mixture to the cylinder;
- an ignition system;
- an electric starting system including a starter motor having an output shaft, an input gear being mounted for rotation with the output shaft;
- a clutch mechanism mounted to the crankshaft;
- a reduction mechanism driven by the input gear, the reduction mechanism having a transmission gear, an output gear, and a coil spring, the transmission gear having a first toothed ring driven by the input gear and a second toothed ring that rotates with the first tooth ring and that drives the output gear, the coil spring being mounted coaxial with the output gear and having a first end attached to the output gear and a second end attached to the clutch mechanism, the coil spring storing a kinetic energy from the starter motor by coiling and releasing the kinetic energy to the crankshaft via the clutch once the stored kinetic energy reaches a predetermined level;
- and
- an ultracapacitor module mounted on the engine, the ultracapacitor module configured to power the starter motor to start the engine, the ultracapacitor module including at least one single ultracapacitor having a second axis extending in a longitudinal direction thereof, and the first axis configured to be not parallel to the second axis.
8 more elements
Dependencies are inferred from the claim text.