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2023
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Invention
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Hollow valve cleaning machine. Proposed is a hollow valve cleaning machine which can perform an i... |
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2022
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Invention
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Production method for internal fastening splint. A production method for an internal fastening sp... |
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Invention
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Machine for partially annealing hollow valve. Provided is a machine for partially annealing a fri... |
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2021
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Invention
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Hollow engine valve. The present invention is a hollow shaft engine valve which has a shaft secti... |
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Invention
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Workpiece appearance image inspection apparatus. This workpiece appearance image inspection appar... |
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Invention
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Method for manufacturing hollow engine valve. The present invention provides a method that is for... |
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Invention
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Hollow engine valve and production method thereof. A hollow engine valve includes a shaft portion... |
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Invention
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Hollow engine valve and production method for same. Provided is a hollow engine valve that increa... |
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2020
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Invention
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Engine valve and manufacturing method therefor.
An engine valve having a shaft portion and a hea... |
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Invention
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Engine valve and production method therefor. The present invention provides an engine valve that ... |
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Invention
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Coolant filling device for hollow-head engine valve, and coolant filling method. Provided are: a ... |
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2019
|
Invention
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Hollow engine valve and manufacturing method therefor. A manufacturing method for a hollow engine... |
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2016
|
Invention
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Method and device for manufacturing metallic-sodium-filled engine valve. An umbrella part metalli... |
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2015
|
Invention
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Hollow engine valve and manufacturing method therefor. The present invention provides a hollow en... |
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2014
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Invention
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Method of charging a hollow valve with metallic sodium. A method of charging a hollow valve with ... |
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|
Invention
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Method and device for supplying metallic sodium to hollow valves. Provided are a method and a dev... |
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Invention
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Apparatus for producing a hollow poppet valve.
A method of producing a hollow valve comprises th... |
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2013
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Invention
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Method for production of valve head portion of hollow engine valve and hollow engine valve. a) of... |
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|
Invention
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Method for producing a hollow engine valve. b) of the valve main body (10). |
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2012
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Invention
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Method for manufacturing hollow engine valve. A method for manufacturing a hollow engine valve in... |
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2011
|
Invention
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Method of producing a hollow poppet valve and an apparatus therefor.
A method of producing a hol... |
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2010
|
Invention
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Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umb... |
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|
Invention
|
Valve spring retainer for an internal combustion engine and a method of manufacturing the same. O... |
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|
Invention
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Spring retainer for internal combustion engine and method for manufacturing the same. Heat treatm... |
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2003
|
Invention
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Friction welding apparatus. Two workpieces are frictionally welded by a friction welding apparatu... |
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2002
|
Invention
|
Ti alloy poppet valve and a method of manufacturing the same. A Ti alloy poppet valve consists of... |
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|
Invention
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Method of joining different metal materials by friction welding. A rod material made of Ti alloy ... |
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|
Invention
|
Tappet for an internal combustion engine. A tappet is used in a valve-operating mechanism of an i... |
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|
Invention
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Multi-valve engine. A multi-valve engine comprises a plurality of intake and exhaust valves on a ... |
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|
Invention
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Method of strengthening ti alloy. Ti alloy is heated in an atmosphere of CO2 in a heating furnace... |
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2001
|
Invention
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Ti alloy surface treatment. Ti alloy is embedded in a powder such as graphite and heated with the... |
|
|
Invention
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Valve spring retainer and a valve operating mechanism. A valve spring retainer is mounted to the ... |
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|
Invention
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Valve spring retainer. A valve spring retainer is fixed at the upper end of a poppet valve via a ... |
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|
Invention
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Valve position detector. A poppet valve moves up and down in a valve operating mechanism in an in... |
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|
Invention
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Poppet valve and a method of manufacturing the same. A poppet valve is used in an internal combus... |
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|
Invention
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deburring apparatus for a workpiece. A workpiece is placed between a punch and a lower die. The ... |
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2000
|
Invention
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Valve operating mechanism of an internal combustion engine. To operate a poppet valve in an inter... |
|
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Invention
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Method of manufacturing a ti alloy poppet value. A bar material is made of an (α+β) or a near α T... |
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|
Invention
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Method of hardening a valve face of a poppet valve. In a valve head of a poppet valve used in an ... |
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|
Invention
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Method of manufacturing tappet in an internal combustion engine. A method of manufacturing and Al... |
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1999
|
Invention
|
Ti alloy poppet valve and surface treatment thereof. A poppet valve in an internal combustion eng... |
|
|
Invention
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Al alloy poppet valve. An Al alloy poppet valve is used in an internal combustion engine and has ... |
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1998
|
Invention
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Tappet made of light metal and a method of manufacturing the same. A tappet made of light metal c... |
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|
Invention
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Al or al alloy poppet valve and a method of manufacturing the same. An Al alloy poppet valve is u... |
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1992
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P/S
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valves for internal combustion engines and parts and accessories therefor; namely, valve seats, c... |
