Cylindrical hydraulic tappet

Abstract

The invention belongs to the technical field of manufacturing of engine accessory. The cylindrical hydraulic tappet comprises a casing. A plunger piston capable of moving axially relative to the casing is mounted in an inner cavity of the casing correspondingly. A first ring groove is formed below the head of the plunger piston, a second ring groove is formed in the middle of the plunger piston, a plunger piston center wall is defined between the first ring groove and the second ring groove, and the second ring groove is a recessed wide ring groove. The cylindrical hydraulic tappet is characterized in that at least one oil inlet which is communicated with the second ring groove is formed in the plunger piston center wall, and a sealing strip which is matched with the inner cavity of the casing to cut off flowing of a hydraulic medium is reserved on the upper portion of the plunger piston center wall. The oil inlets of the plunger piston are formed in position relatively higher than a check valve so that oil storage capacity of an oil storage cavity of the plunger piston is increased; during cold start of an engine, sufficient hydraulic medium can be resupplied rapidly to enter a high-pressure cavity in the check valve, the time for the hydraulic tappet to reset to a normal work height from a compression height is shortened, the valve clearance is eliminated quickly, the noise reduction time during the cold start of a valve distributing mechanism is shortened while abrasion of related parts is reduced.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This patented method for manufacturizing plunges involves combining different materials together during injection molded processes. By integrating multiple parts like the fuel tank or cylinder head, these components become stronger without requiring extra weight compared to traditional methods such as casting. Additionally, the use of lubrication coil channels allows for better coolability while maintaining good oil retention characteristics. Overall, this new design improves heat dissipation performance and reduces damage from excessive internal combustion pressings.

Problems solved by technology

This patented technical problem addressed in this patents relating to the use of hydrostatic thrust bearings (HBF), specifically those called ballistic or rolling type Hydrojet Mechanisms (SHM). These mechanisms have several benefits such as improved performance over traditional engines due to their ability to adjust without stopping power supply and reduce vibration levels compared to older designs. However they also generate more waste products like lubricant residue and gasoline combustion gases. Additionally, some components become worn faster even before reaching peak operating hours, causing issues like decreased durability and acceleration felt down upon operation.

Images