Patent Search Database Used

Keywords Used for Search

Part - I : PATENT SEARCH TECHNIQUE USED

Google Patents

Drive shaft,Composite material,carbon fibre drive shaft

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Patent Search & Analysis Report (PSAR)27-April-2015

Team Id

Name

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4993

PATEL HARDIKKUMAR KHANSINGBHAI

Search String Used drive shaft of composite material:

Part - II : BASIC DATA OF PATENTED INVENTION/BIBLIOGRAPHIC DATA

Country Patent No

Number of Results/Hits getting : 8

Category/Field of Invention :

Invention is Related to/Class of Invention

Title of Invention

Patent No.

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drive shaft , Engine

Carbon fiber reinforced composite drive shaft

Application No.

Date of Filing/Application

Priority Date

Publication/Journal Number - (Issue No. of Journal in which Patent is published)

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US 05/890,232

US4171626 A

Publication Date

First Filled Country

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Also Published as

27/03/1978

23/10/2001

27/03/1978

MECHANICAL ENGINEERING

United States

Applicant for Patent is : Company

- INVENTOR DETAIL

Address/City/Country of InventorName of Inventor

Derek N Yates United states

Name of Applicant/Assignee Address/City/Country of Applicant

United Aircraft Corp united states

- APPLICANT/ASSIGNEE DETAIL

Part - III : TECHNICAL PART OF PATENTED INVENTION

Limitation of Prior Technology/Art :

high cost of composite material, complex design hard to repair

Specific Problem Solved/Objective of Invention :

high torque transmission capacity,high damping capacity.

A carbon fiber reinforced composite tubular drive shaft is provided wherein the fibrous reinforcement is positioned in a structural configuration capable of yielding improved service characteristics. The wall of the drive shaft comprises at least four bonded circumferentially disposed layers composed of appropriate fibrous reinforcement situated within a resin matrix (as described). The carbon fibers are disposed generally longitudinally in a layer at an intermediate position within the tube wall and are capable of efficiently increasing the stiffness of the shaft

Brief about Invention :

Key Learning Points :

drive shaft of composite material,analysis

. The overall requirement for the carbon fiber component of the fibrous reinforcement is minimized. Glass fibers likewise are disposed generally longitudinally in a layer at an intermediate position within the tube wall and are capable of economically contributing resistance to torsion buckling to the overall drive shaft without deleteriously influencing the critical speed of the drive shaft. The drive shafts of the present invention, accordingly, are light weight and surprisingly capable of yielding reliable service in the absence of harmful secondary powertrain resonance and the concomitant noise associated therewith.

Summary of Invention :

Number of Claims 32:

Patent Status Published Application:

How much this invention is related with your IDP/UDP? 71 to 90%:

Do you have any idea to do anything around the said invention to improve it? :

performance can improve by using various composite material ..