BFC Valve Spring Retainer 4976168 for Cummins Engine ISF2.8

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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.

 

 

After careful planning, we consciously emphasize the relative advantages of BFC Valve Spring Retainer 4976168 for Cummins Engine ISF2.8 and services, so as to achieve the goal of defeating competitors. We improve our internal management and continue to respond to customer expectations. From the perspective of reducing cost and improving efficiency, we have won high praise from users with high quality, excellent service and preferential price.