head efficiency

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• Head-up display — A head up display, or HUD, is any transparent display that presents data without requiring the user to look away from his or her usual viewpont. The origin of the name stems from the user being able to view information with their head up and… …   Wikipedia

• Cylinder head porting — refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality and quantity of the air flow. Cylinder heads, as manufactured, are usually suboptimal due to design and manufacturing… …   Wikipedia

• Reverse-flow cylinder head — A reverse flow or non crossflow cylinder head is one that locates the intake and exhaust ports on the same side of the engine. The gases can be thought to enter the cylinder head and then change direction in order to exit the head. This is in… …   Wikipedia

• Cylinder head — A 302/5.0L Ford cylinder head In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion… …   Wikipedia

• Engine efficiency — of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. There are two classifications of thermal engines (1) Internal combustion (gasoline, diesel and gas… …   Wikipedia

• Volumetric efficiency — in internal combustion engine design refers to the efficiency with which the engine can move the charge into and out of the cylinders. More correctly, volumetric efficiency is a ratio (or percentage) of what volume of fuel and air actually enters …   Wikipedia

• Stacy Head — Stacy Aline Singleton Head (b. 1969, Baton Rouge, Louisiana)[1] is a member of the New Orleans City Council. Stacy Head addresses a Mid City New Orleans neighborhood board meeting, 2006 …   Wikipedia

• School head lice policy — An Italian woman searches for lice in her son s hair c.1860 …   Wikipedia

• Hilton Head Plaza Hotel & Suites (Hilton Head) — Hilton Head Plaza Hotel & Suites country: United States, city: Hilton Head (Hilton Head) Hilton Head Plaza Hotel & Suites This AAA three star property, located directly across the street from Forest Beach, offers affordable luxury, total… …   International hotels

• Intermodal Surface Transportation Efficiency Act — The Intermodal Surface Transportation Efficiency Act of 1991 (Public Law 102 240; ISTEA, pronounced Ice Tea) is a United States federal law that posed a major change to transportation planning and policy, as the first U.S. federal legislation on… …   Wikipedia

• To draw to a head — Draw Draw, v. i. 1. To pull; to exert strength in drawing anything; to have force to move anything by pulling; as, a horse draws well; the sails of a ship draw well. [1913 Webster] Note: A sail is said to draw when it is filled with wind. [1913… …   The Collaborative International Dictionary of English