METHOD OF FORMING THROTTLE DEVICE FOR INTERNAL COMBUSTION ENGINE

Title:

METHOD OF FORMING THROTTLE DEVICE FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP2005155595

Kind Code:

A

Abstract:

To stably manufacture a high quality product by injection molding a molten material.

A resin forming die has a first shaft holding portion 71 in such an approximately cylindrical shape that it continuously cycles round the outer peripheral face of a metal shaft 5 exposed between the first collar side end face of each of resin discs 51, 52 of a throttle valve 3 and the valve side end face of a first collar 41. It also has a second shaft holding portion 72 in such an approximately cylindrical shape that it continuously cycles round the outer peripheral face of the metal shaft 5 between the second collar side end face of each of the resin discs 51, 52 of the throttle valve 3 and the valve side end face of a second collar 42. Thus, the entry of a resin material into first and second shaft through-holes 42a of the first and second collars 41, 42 is surely prevented without causing the malfunction of the throttle valve 3 and the metal shaft 5 in a bore wall portion of the throttle body.

Inventors:

ARAI TAKESHI
HIRAIWA NAOKI
GOTO MASAMI
TORII KATSUYA
SHIMADA HIROKI

Application Number:

JP2004106107A

Publication Date:

June 16, 2005

Filing Date:

March 31, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DENSO CORP

International Classes:

B22D17/00; B22D17/22; B22D17/24; B22D19/00; B23K17/00; B29C45/14; B29C45/26; B29C45/36; B29C45/40; B29C45/64; F02D9/00; F02D9/08; F02D9/10; F02D11/10; F16K1/22; B29L31/00; (IPC1-7): F02D9/10; B22D17/00; B22D17/22; B22D17/24; B22D19/00; B29C45/14; B29C45/26; F02D9/00; F02D11/10

Attorney, Agent or Firm:

Kenji Ishiguro

Previous Patent: LINEAR MOTOR AND LINEAR COMPRESSOR USING THE SAME

Next Patent: FAN AND ROTOR STRUCTURE