关键词：挺杆；凸轮从动；气门挺杆；发动机缸体
摘 要：The tappet, also called a cam follower or valve lifter, is a component that runs on the camshaft, and is made to move vertically by the action of a rotating cam. It is a small part interposed between each camshaft lobe for the valve-lifting mechanism, which raises the valve off the seat. The side valves lift upward where the overhead valves are depressed to lift or open the side valves, and vice versa. As a camshaft rotates, each lobe produces both a vertical and a side thrust. In an overhead valve engine, the tappet is used low down in the engine block. From there, it drives a long thin pushrod up to the top of the engine, above the cylinder head.
目 录：

PART 01: Executive summary

Highlights

PART 02: Scope of the report

Market overview

Top-vendor offerings

PART 03: Market research methodology

Research methodology

Economic indicators

PART 04: Introduction

Key market highlights

Automotive tappets: market dynamics

PART 05: Market landscape

Market overview

Market size and forecast

Five forces analysis

PART 06: Market segmentation by end-user

Global OEMs automotive tappets market

Global automotive tappet aftermarket

PART 07: Market segmentation by type

Global automotive flat tappets market

Global automotive roller tappets market

PART 08: Geographical segmentation

Automotive tappets market in APAC

Automotive tappets market in Americas

Automotive tappets market in EMEA

PART 09: Market drivers

PART 10: Impact of drivers

PART 11: Market challenges

PART 12: Impact of drivers and challenges

PART 13: Market trends

PART 14: Vendor landscape

Other prominent vendors

PART 15: Key vendor analysis

Comp Cams

Crower

Lunati Power

SM Motorenteile

Schaeffler

PART 16: Appendix

List of abbreviations

PART 17: Explore Technavio