Accession Number:

ADA003332

Title:

Water Induction Studies in a Military Spark Ignition Engine.

Descriptive Note:

Interim rept. Jun-Sep 74,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TEX ARMY FUELS AND LUBRICANTS RESEARCH LAB

Personal Author(s):

Report Date:

1974-10-01

Pagination or Media Count:

43.0

Abstract:

Dynamometer studies were conducted at the U.S. Army Fuels and Lubricants Research Laboratory in an L-141 military SI engine to evaluate the effects of intake port water induction on fuel economy, power, and exhaust emissions. The engine was equipped with a variable jet carburetor to permit independent control of mass fuel and air flow as required by the constant speed-constant fuel flow-variable air flow technique used, and the intake manifold was reworked to accommodate a water induction tube at each port. Crankcase emissions controls were deleted to avoid blow-by contamination of the intake charge, and the fan and radiator were replaced by a water-to-water heat exchanger in a vented cooling system charged with treated tap water. Specification VV-G-001690 Special Grade unleaded gasoline and a MIL-L-2104C grade 30 oil were selected as the reference fuel and lubricant, while de-ionized water was used for induction purposes.

Subject Categories:

  • Reciprocating and Rotating Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE