CASTING DEVICE AND CASTING METHOD

Title:

CASTING DEVICE AND CASTING METHOD

Document Type and Number:

Japanese Patent JP2010155254

Kind Code:

A

Abstract:

To uniformize the surface temperature of a core pin by suppressing the stagnation in the flow of a cooling medium.

The core pin 1 molding a linear-less cylinder bore has a hollow structure, and a cooling tube 3 is insertedly arranged at the inside thereof. The central part of the cooling tube 3 is provided with an internal cooling water passage 31, and spiral grooves 33 are formed at the inner circumferential face of the core pin 1 confronted with the outer circumferential face of the cooling tube 3 so as to be a spiral cooling water passage 35. Cooling water is fed from the internal cooling water passage 31 in the cooling tube 3 and cools the core pin 1 when being made to flow through the radial cooling water passage 35.

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Inventors:

TASHIRO MASAMI
URAYAMA KATSUYA

Application Number:

JP2008333887A

Publication Date:

July 15, 2010

Filing Date:

December 26, 2008

Export Citation:

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Assignee:

NISSAN MOTOR

International Classes:

B22C9/06; B22C9/10; B22D17/22

Domestic Patent References:

JP2003136193A	2003-05-14
JPH06262295A	1994-09-20
JP2002361392A	2002-12-17
JP2005014036A	2005-01-20
JP2000167655A	2000-06-20
JP2005014036A	2005-01-20
JP2000167655A	2000-06-20
JP2003136193A	2003-05-14
JPH06262295A	1994-09-20
JP2002361392A	2002-12-17

Attorney, Agent or Firm:

Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu

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