Throttle body having internally connected double pipe structure

Details Throttle body having internally connected double pipe structure Throttle body having internally connected double pipe structure

2006-05-23

2006-05-23

Kwon, John T. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Specific throttle valve structure

C123S399000

Reexamination Certificate

active

07047935

ABSTRACT:
A resinous throttle body has a bore wall part having a double pipe structure constructed with a bore inner pipe and a bore outer pipe that are connected with each other via an annular connecting part. The annular connecting part has axial board thickness set to be less than the minimum radial thickness of a portion of the bore inner pipe and a portion of the bore outer pipe that are located around the annular connecting part. Therefore, the annular connecting part can be formed to be in a thin-walled radially elongated plate shape. The annular connecting part has a radially cross-sectional length larger than its axial board thickness, so that rigidity and strength of the annular connecting part is decreased. Therefore, contraction of the bore outer pipe occurred in its molding process does not largely affect the bore inner pipe, so that a cylindrical-shaped inner periphery of the bore inner wall, which rotatably receives a disc-shaped throttle valve, can be restricted from being deformed.

REFERENCES:
patent: 5359977 (1994-11-01), Abbey
patent: 5704335 (1998-01-01), Akutagawa et al.
patent: 6295968 (2001-10-01), Torii et al.
patent: 2001/0013332 (2001-08-01), Torii et al.
patent: 2002/0152988 (2002-10-01), Michels
patent: 2004/0040536 (2004-03-01), Suzuki
patent: 2004/0041117 (2004-03-01), Suzuki
patent: 2004/0154586 (2004-08-01), Ino et al.
patent: 2004/0187844 (2004-09-01), Torii et al.
patent: 9-032590 (1997-02-01), None
patent: 10-047520 (1998-02-01), None
patent: 11-132061 (1999-05-01), None
patent: 2001-263098 (2001-09-01), None
patent: 2001-303983 (2001-10-01), None

Affiliated with

Also associated with

Rating

Throttle body having internally connected double pipe structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Throttle body having internally connected double pipe structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Throttle body having internally connected double pipe structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3641404