Two-temperature vapor lock and high-temperature driveability performance of 1982 passenger vehicles. Report for 20 September-19 October 1982

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:6469500

The 1982 CRC High-Temperature Driveability Program was conducted at the US Army Proving Grounds near Yuma, AZ, from September 20 through October 19, 1982, at nominal ambient temperatures of 70 and 95 F. CRC conducted previous programs for the evaluation of vapor lock and hot start and driveability of 1971 and 1975 model passenger cars. Since 1975, vehicle designs have changed rapidly to meet more-stringent exhaust emissions and fuel-economy standards. These changes may affect vehicle high-temperature performance. THe 1982 CRC High-Temperature Drivability Program investigated the effect of such changes on vapor lock performance of nineteen 1982 passenger vehicles at nominal temperatures of 70 an 95 F. The two-temperature corrections of volatility over a range of temperature from 70 to 95 F. Hot-start and driveability performance was evaluated at a nominal 95 F temperature by two test procedures. A new city driveability procedure emphasized conditions that could cause performance problems encountered in heavy stop-and-go traffic after a period of temperature stabilization. Selected vehicles were also evaluated using the CRC Hot-Start and Driveability Procedure.

• Research Organization: Coordinating Research Council, Inc., Atlanta, GA (USA)
• OSTI ID: 6469500
• Report Number(s): AD-A-155413/8/XAB; CRC-538
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AUTOMOBILES
CARBURETORS
ENERGY CONSUMPTION
ENGINES
FUEL CONSUMPTION
FUEL SYSTEMS
HEAT ENGINES
HIGH TEMPERATURE
INTERNAL COMBUSTION ENGINES
PERFORMANCE TESTING
STANDARDS
TESTING
URBAN AREAS
VEHICLES