United States, NY -- (SBWire) -- 08/17/2017 --Global Automotive Valve Stem Seal Market: Overview
Valve stem seals are small relative to other gasket and seals in an engine, the play a major part in the lubrication. The valve stem seals are different from others due to their design, which is made to leak. But the amount and the way in which it leaks is controlled precisely to achieve the specific goal. Valve stem seals provide controlled oil leak to lubricate the valve stem as it slides in the valve guide. The oil leak has to precisely control, as too little oil can cause stem and guide wear and too much can cause carbon build up which leads to damaged valve seats, increased emission, and excessive oil consumption.
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Automotive valve stem seals are available for gasoline and diesel engines with and without boosting. There's increasing demand for valve stem seals due to growing automotive market and increased production in emerging markets like Asia.
Global Automotive Valve Stem Seal Market: Drivers and Restraints
The major factor to this growth is increasing vehicle manufacturing in countries like China, Brazil and India and increased installation of Valve Stem Seal. Due to high disposable income there's a growing demand for automobiles which is in turn driving the valve tem seal market. Tremendous changes in technology have been made on the "lower cylinder seal," piston rings. When installed properly piston rings control oil and compression in a cylinder to an infinite degree. With most valve seals, however, this is not the case. The "upper cylinder seal", the valve, has been protected by an "O-ring" or "umbrella" type of valve stem seal. These seals serve the same purpose as building a house with a good roof, but not enclosing the sheltered area with walls. In some cases, in proper climatic conditions, this might be adequate, but certainly not desirable.
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These types of seals are based on the theory that what oil goes down the valve stem into the combustion chamber is by gravity flow only. This pays no attention to the tremendous vacuum forces acting upon the lower end of the valve stem, or to the mist or spray effect that the rapidly reciprocating springs, rocker arms, and pushrods have on the oil in the valve chamber. Therefore, where these types of seals are used, we have a marvelously efficient "lower cylinder seal", and no "upper cylinder seal" at all, merely an oil deflector.
Global Automotive Valve Stem Seal Market: Market Segmentation
The Global Automotive Valve Stem Seal Market is segmented by Type and Application
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Based on Type, Global Automotive Valve Stem Seal Market is segmented into:
Integrated Seal
Non-Integrated Seal
Based on Application, Global Automotive Valve Stem Seal Market is segmented into:
Diesel Engine
Gasoline Engine
Automotive Valve Stem Seal Market to Incur Rapid Extension During 2017 - 2025
Valve stem seals are small relative to other gasket and seals in an engine, the play a major part in the lubrication.