§86.508-78. Dynamometer.
40 C.F.R. § 86.508-78
The dynamometer shall have a single roll with a diameter of at least 0.400 metre.
The dynamometer shall be equipped with a roll revolution counter for measuring actual distance traveled.
Flywheels or other means shall be used to stimulate the inertia specified in § 86.529.
A variable speed cooling blower shall direct air to the vehicle. The blower outlet shall be at least 0.40 m 2 (4.31 ft 2) and shall be squarely positioned between 0.3 m (0.98 ft) and 0.45 m (1.48 ft) in front of the vehicle's front wheel. The velocity of the air at the blower outlet shall be within the following limits (as a function of roll speed):
The dynamometer shall comply with the tolerances in § 86.529.
Notes, amendments, and revision history
Amendments
[42 FR 1137, Jan. 5, 1977, as amended at 42 FR 56738, Oct. 28, 1977]
Source
Source: 42 FR 1137, Jan. 5, 1977, unless otherwise noted.
Authority
Authority: 42 U.S.C. 7401-7671q.
Amendments
[42 FR 1137, Jan. 5, 1977, as amended at 42 FR 56738, Oct. 28, 1977]