US 2015/0090506 A1 · POWER TRANSMISSION DEVICE AND HYBRID CONSTRUCTION MACHINE PROVIDED THEREWITH

Abstract

A configuration is provided to directly utilize the power of an engine as the power of a hydraulic pump, and to efficiently perform power generation and engine assist. The configuration is provided with an engine; a generator which is configured to generate electric power by an operation of the generator using the power of the engine; a battery which is configured to store the electric power generated by the generator; a motor which is configured to be operated by the power of the engine and by the electric power of the battery; a hydraulic pump connected to the motor so as to be driven by operation of the motor; and a power divider connected to the engine, the generator, and the motor so that the power of the engine is distributed to the generator and to the motor.

Claims6

Dependent claims

A power transmission device to be provided to a hybrid construction machine, comprising:

an engine;
a generator which is configured to generate electric power by operation of the generator using power of the engine;
a battery which is configured to store the electric power generated by the generator;
a motor which is configured to be operated by the power of the engine and by the electric power of the battery;
a hydraulic pump connected to the motor so as to be driven by operation of the motor;
and
a power divider connected to the engine, the generator, and the motor so that the power of the engine is distributed to the generator and to the motor.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/387,436Filed 6 Mar 2013

Priority

JP 2012-06871726 Mar 2012

Published

2 Apr 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification27 codes

E02F 9/2075
Control of propulsion units: of the hybrid type
B60K 6/22
The prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs: characterised by apparatus, components or means…
B60K 6/30
Characterised by apparatus, components or means specially adapted for HEVs: characterised by chargeable mechanical accumulators, e.g. flywheels
B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means

Power transmission device and hybrid construction machine provided therewith

Life of this patent

Power transmission device and hybrid construction machine provided therewith

Life of this patent

Abstract

Claims6