Hybrid construction equipment
AssigneeKomatsu Ltd.
InventorsMasami Naruse, Masatake Tamaru, Kenzo Kimoto
Life of this patent
Estimating the term…
Abstract
A hybrid construction equipment capable of sufficiently exhibiting performance of a battery with strategic arrangement of the apparatuses being carried out is provided. For this purpose, the hybrid construction equipment includes, on an upper revolving superstructure (10) rotatably placed on a lower traveling unit, an engine (1), a generator (3) driven by the engine (1), a battery (5) charged with electric power generated by the generator (3), an electric motor (7) driven by electric power of the battery (5), an inverter (6) for controlling drive of the electric motor (7) and a driver's cab (12), and the battery (5) is placed to be isolated from the engine (1) and the generator (3).
Claims11
Hybrid construction equipment comprising:
- on an upper revolving superstructure rotatably placed on a lower traveling unit,
- an engine;
- a generator driven by said engine;
- a battery charged with electric power generated by said generator;
- an electric motor driven by electric power of said battery;
- an inverter for controlling drive of said electric motor;
- and
- a driver's cab,
- wherein said battery is placed to be isolated from said engine and said generator,
- wherein said battery is placed inside an upper revolving superstructure frame under said driver's cab.
Hybrid construction equipment comprising:
- on an upper revolving superstructure rotatably placed on a lower traveling unit,
- an engine;
- a generator driven by said engine;
- a battery charged with electric power generated by said generator;
- an electric motor driven by electric power of said battery;
- an inverter for controlling drive of said electric motor;
- and
- a driver's cab,
- wherein said battery is placed to be isolated from said engine and said generator,
- wherein a battery housing chamber, which includes a cooling air inlet port communicating with said driver's cab and a cooling air outlet port, is provided inside an upper revolving superstructure frame under said driver's cab, and
- wherein said battery is housed in said battery housing chamber.
Hybrid construction equipment, comprising:
- on an upper revolving superstructure rotatably placed on a lower traveling unit,
- an engine;
- a generator driven by said engine;
- a battery charged with electric power generated by said generator;
- an electric motor driven by electric power of said battery;
- an inverter for controlling drive of said electric motor;
- a driver's cab;
- and
- an air intake chamber communicating with a radiator, in a machine room at a rear part of said upper revolving superstructure,
- wherein said battery is placed to be isolated from said engine and said generator and said inverter is housed in said air intake chamber.
Hybrid construction equipment, comprising:
- on an upper revolving superstructure rotatably placed on a lower traveling unit,
- an engine;
- a generator driven by said engine;
- a battery charged with electric power generated by said generator;
- an electric motor driven by electric power of said battery;
- an inverter for controlling drive of said electric motor;
- and
- a driver's cab;
- and
- an inverter housing chamber at a rear part of said driver's cab,
- wherein said battery is placed to be isolated from said engine and said generator and said inverter is housed in said inverter housing chamber.
Dependencies are inferred from the claim text.