JOINTED VEHICLE FOR FORMING TRAIN

Title:

JOINTED VEHICLE FOR FORMING TRAIN

Document Type and Number:

Japanese Patent JPH0733017

Kind Code:

A

Abstract:

PURPOSE: To reduce air pressure sound at exit of a tunnel, which is a problem caused by speed increase of rolling stocks.

CONSTITUTION: A body sectional equivalent radius of front vehicle 2 at each end of a train decrease linearly from the position of connection toward the front position. And also, body width decreases toward the front position in between trucks of front and of rear position. Pressure gradient of wave front in compressed wave at entry of a tunnel thus becomes gradual at the time of entering the tunnel. Accordingly, air pressure sound at exit of the tunnel, due to a maximum pressure gradient of wave front in compressed air at entry of the tunnel in entering the tunnel, is reduced.

Inventors:

HIGAKI HIROSHI
HATTORI MORISHIGE
OKAZAKI MASATO
HIRAKAWA HARUO

Application Number:

JP18367193A

Publication Date:

February 03, 1995

Filing Date:

July 26, 1993

Export Citation:

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Assignee:

HITACHI LTD

International Classes:

B61D17/04; B61D17/02; (IPC1-7): B61D17/04

Attorney, Agent or Firm:

Ogawa Katsuo

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