Factory Supply Rear Engine Euro IV 30 Seat School Bus

The quality and safety we guarantee refers not only to the Forklift Relief Valve, Forklift Synchronizer Gear, Forklift Fuse Wire itself, but also to the consistency, reliability and longevity of the entire supply chain. Our company continues to increase equipment investment, introduces advanced production and testing equipment. We have got a experienced engineering team to serve for the every single comprehensive needs. We take the road of development of integrity management service priority. The company realizes the integration of education and industry, relying on the unique resources of universities to find talents from the source.

Product Title: Valve Spring Seat

Product Model: 490B-03007 for Xinchai 490B Engine

 

 

 

 

 

 

 

Item	Description
Product Name	Valve Spring Seat
P/N	490B-03007
Applied Model	Xinchai 490B Diesel Engine
Net Weight (kg)	0.4
Gross Weight (kg)	0.95
Qty per Carton	8 Only / combination
Carton Size (cm)	10*10*10

 

 

 

The Primary Function of the Valve Spring Seat:

The valve spring seat plays a critical role in ensuring that the valve closes accurately and tightly, preventing bounce during engine vibrations, thereby maintaining good sealing performance. Together with the lower seat, the seat applies the tension of the valve spring to the valve mechanism, ensuring airtightness between the valve and the valve seat.

 

Specifically, the functions of the valve spring seat include:

1. Preventing Spring Displacement and Wear:

The seat is designed to keep the spring stable, preventing displacement and wear, which ensures the reliable return of the valve.

 

2. Increasing the Natural Frequency of the Valve Spring:

By increasing the wire diameter, reducing the coil diameter, or employing dual valve springs, the stiffness of the valve spring is increased, enhancing its stability and reducing the likelihood of valve float at higher engine speeds.

 

3. Eliminating Gaps:

The pre-load applied during the installation of the valve spring overcomes the inertial forces encountered during valve closure, eliminating gaps between the components of the valve train and ensuring the precision and timing of valve movements.

 

4. Sealing Performance:

The seat, through its inner conical surface, forms a precise fit with the conical surface of the valve head, contributing to the sealing of the cylinder. It also bears the heat transferred from the valve, helping to maintain the stability of the engine's internal operations.

 

 

For the future,we will keep devoting ourselves to improve our technologies and Factory Supply Rear Engine Euro IV 30 Seat School Bus. We can offer the most competitive price with high quality, because we are much MORE PROFESSIONAL. We strive to provide a solid foundation for the company's future capacity upgrade and a broad platform and space for future sustainable development.