Title:
PRESSURE CONTROL DEVICE FOR BOOSTER
Document Type and Number:
Japanese Patent JPS6237264
Kind Code:
A
Abstract:
PURPOSE:To make it possible to obtain the control pressure of small fluctuation and good responsiveness and stability by providing two solenoid valves connected to each other in parallel and having a different flow passage area for one of primary and secondary opening and closing devices. CONSTITUTION:A pressure control device 11 is provided with a primary opening and closing means 15 for making continuous or shutting off between a pilot chamber 14 and a supply source 13, and a secondary opening and closing device 16 for making continuous or shutting off the pilot chamber 14 and the atmosphere as an exhaust part. And the opening and closing means 15 and 16 are provided with parallel-connected solenoid valves 15a and 15b, and 16a and 16b respectively, and among the foregoing sets of solenoid valves, the valves 15b and 16b are respectively connected with throttles 15c and 16c in series, thereby keeping a flow passage area smaller than other solenoid valves 15a and 16a. According to the aforesaid constitution, a booster mechanism 2 can be caused to give an output quickly and that pressure fluctuation can be kept small.
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Inventors:
TOBISAWA YOSHIO
KUBO JUN
KUBOTA HITOSHI
ISHIKAWA YASUTAKE
NUNOKAWA KAZUYOSHI
KUBO JUN
KUBOTA HITOSHI
ISHIKAWA YASUTAKE
NUNOKAWA KAZUYOSHI
Application Number:
JP17799685A
Publication Date:
February 18, 1987
Filing Date:
August 13, 1985
Export Citation:
Assignee:
JIDOSHA KIKI CO
NISSAN MOTOR
NISSAN MOTOR
International Classes:
B60T17/00; B60T13/66; B60T15/36; (IPC1-7): B60T13/66; B60T15/36
Domestic Patent References:
| JPS5918066B2 | 1984-04-25 | |||
| JPS50103016A | 1975-08-14 |
Attorney, Agent or Firm:
Shinichiro Kanzaki
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