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2. Onboard refueling vapor recovery - Wikipedia

   en.wikipedia.org/wiki/Onboard_refueling_vapor...

   An onboard refueling vapor recovery system (ORVR) is a vehicle fuel vapor emission control system that captures volatile organic compounds (VOC, potentially harmful vapors) during refueling. [ 1 ] [ page needed ] There are two types of vehicle fuel vapor emission control systems: the ORVR, and the Stage II vapor recovery system. [ 2 ]

3. Vapor recovery - Wikipedia

   en.wikipedia.org/wiki/Vapor_recovery

   Vapor (or vapour) recovery is the process of collecting the vapors of gasoline and other fuels, so that they do not escape into the atmosphere. This is often done (and sometimes required by law) at filling stations , to reduce noxious and potentially explosive fumes and pollution.

4. Toyota TR engine - Wikipedia

   en.wikipedia.org/wiki/Toyota_TR_engine

   The 2TR-FE is a 2.7 L (2,693 cc) Straight-4 gasoline engine. It features DOHC, 16 valves and VVT-i. It features DOHC, 16 valves and VVT-i. Maximum power is 118 kW (158 hp; 160 PS) at 5,200 rpm, and 25.1 kg⋅m (246 N⋅m; 182 lbf⋅ft) of torque at 3,800 rpm with redline of 5500 rpm.

5. Crankcase ventilation system - Wikipedia

   en.wikipedia.org/wiki/Crankcase_ventilation_system

   Another type used of the pressure suction type was used on VW Porsche air cooled engines whereby the front crankcase pulley has a reverse screw built into it which brings air into the engine and air escapes the crankcase with the road draft tube. This system works very well in getting rid of crankcase vapors which are harmful to the engine.

6. Vapor lock - Wikipedia

   en.wikipedia.org/wiki/Vapor_lock

   Vapor lock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines.This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling.

7. Vehicle emissions control - Wikipedia

   en.wikipedia.org/wiki/Vehicle_emissions_control

   Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines.The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides.