- specific weight of engine
- 每马力重量
English-Chinese machine dictionary (英汉机械大词典). 2013.
English-Chinese machine dictionary (英汉机械大词典). 2013.
specific weight — i. The ratio of the weight of an aircraft’s reciprocating engine (including the weight of the cowling and the propeller) to the brake horsepower it produces. ii. The ratio of the mass of a gas turbine engine and its net thrust … Aviation dictionary
specific thrust — The ratio of total thrust produced by an engine and the mass of the engine. It is a measure of the efficiency of the engine. It is 1/specific weight of engine … Aviation dictionary
Specific impulse — (usually abbreviated I sp) is a way to describe the efficiency of rocket and jet engines. It represents the impulse (change in momentum) per unit of propellant. The higher the specific impulse, the less propellant is needed to gain a given amount … Wikipedia
Engine tuning — is the adjustment, modification or design of internal combustion engines to yield optimal performance, either in terms of power output or economy. It has a long history, almost as long as the development of the car in general, originating with… … Wikipedia
Engine cooling — is cooling an engine, typically using either air or liquid.OverviewHeat engines generate mechanical power by extracting energy from heat flows, much as a water wheel extracts mechanical power from a flow of mass falling through a distance.… … Wikipedia
Specific power — In engineering, the term specific power can refer to power either per unit of mass, volume or area, although power per unit of volume is more formally known as power density, and power per unit area as surface power density. [… … Wikipedia
Engine — This article is about a machine to convert energy into useful mechanical motion. For other uses of engine, see Engine (disambiguation). For other uses of motor, see Motor (disambiguation). A V6 internal combustion engine from a Mercedes car An… … Wikipedia
Specific heat of a substance at any temperature — Heat Heat (h[=e]t), n. [OE. hete, h[ae]te, AS. h[=ae]tu, h[=ae]to, fr. h[=a]t hot; akin to OHG. heizi heat, Dan. hede, Sw. hetta. See {Hot}.] 1. A force in nature which is recognized in various effects, but especially in the phenomena of fusion… … The Collaborative International Dictionary of English
specific thrust — noun the thrust per unit weight of a vehicle or engine … Wiktionary
specific fuel consumption — The quantity of fuel consumed (by weight) to produce one unit of power in one unit of time. In piston engines, the SFC is equal to the mass ratio of fuel/shaft horsepower. In gas turbine engines, the SFC is equal to the mass ratio of fuel/thrust … Aviation dictionary
Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) … Wikipedia