Title:
BRAKE ENERGY REGENERATION DEVICE
Document Type and Number:
Japanese Patent JP3894253
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a brake energy regeneration device which realizes the high speed of the rotation frequency in the pump operating time of a hydraulic pump/motor, and realizes the small type and the light weight of the hydraulic pump/motor.
SOLUTION: In the pump operating time of a hydraulic pump/motor 2, a bypass passage 15 is closed, and an operation oil applied with pressure is fed from a turbine pump 3 to the hydraulic pump/motor 2 through a communication oil passage 6c, and a cavitation is made difficult to be generated in the operation oil absorbing time of the hydraulic pump/motor 2, the hydraulic pump/motor 2 can be rotated at a high speed, and the small type and the light weight are realized. In the motor operating time of the hydraulic pump/motor 2, the bypass passage 15 is opened, and after the motor-operating the hydraulic pump/motor 2, the operation oil flowing from the hydraulic pump/motor to the communication oil passage 8c is returned to a low pressure tank 10 through the bypass oil passage 15, so as to prevent the turbine pump 3 from becoming a resistance, and the operation of the motor is carried out efficiently.
Inventors:
Yokozawa Tatsuto
Application Number:
JP15176598A
Publication Date:
March 14, 2007
Filing Date:
June 01, 1998
Export Citation:
Assignee:
Mitsubishi Fuso Truck and Bus Co., Ltd.
International Classes:
B60T1/10; B60W10/04; B60K25/00; B60W10/08; B60W10/18; F02D29/04; F03C1/40; F16D61/00; (IPC1-7): B60T1/10; B60K41/20; F02D29/04; F03C1/40; F16D61/00
Domestic Patent References:
| JP7156765A | ||||
| JP7149214A | ||||
| JP8156637A | ||||
| JP9071228A | ||||
| JP6286498A | ||||
| JP5280375A | ||||
| JP8324700A |
Attorney, Agent or Firm:
Koji Nagato