EJECTOR OF VEHICULAR NEGATIVE PRESSURE BOOSTER

Title:

EJECTOR OF VEHICULAR NEGATIVE PRESSURE BOOSTER

Document Type and Number:

Japanese Patent JP2005171925

Kind Code:

A

Abstract:

To provide an ejector of a negative pressure booster capable of setting a negative pressure chamber of the negative pressure booster to predetermined negative pressure with excellent responsiveness.

This ejector 1 of the vehicular negative pressure booster has a nozzle 51 arranged on the air inlet 50 side, a diffuser 23 arranged on the air outlet 21 side, and a pressure reducing chamber 24 arranged between the nozzle 51 and the diffuser 23; and is used for negative pressure of the negative pressure chamber of the negative pressure booster by taking out the negative pressure generated by air jetted by the nozzle 51 from the pressure reducing chamber 24. An expanding part 20 expanding toward the pressure reducing chamber 24 from a tip part of the diffuser 23, is formed between the diffuser 23 and the pressure reducing chamber 24. An expanding angle of the expanding part 20 is formed at 10 to 60°.

Inventors:

SUZUKI KIMIYASU

Application Number:

JP2003415052A

Publication Date:

June 30, 2005

Filing Date:

December 12, 2003

Export Citation:

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Assignee:

ADVICS KK

International Classes:

B60T17/00; F04F5/20; F04F5/44; (IPC1-7): F04F5/20; B60T17/00; F04F5/44

Attorney, Agent or Firm:

Hidehiko Okada
Tetsuo Fukuda
Tatsuhiko Inukai
Takashi Ishioka

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