USA flag logo/image

An Official Website of the United States Government

JP-8 Hydraulic Power System for Legged Robot

Award Information

Department of Defense
Award ID:
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
ARMY 10-134
Solicitation Number:
Small Business Information
Cosworth LLC
3031 Fujita Street Torrance, CA 90505
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2010
Title: JP-8 Hydraulic Power System for Legged Robot
Agency / Branch: DOD / ARMY
Contract: W56HZV-11-C-0054
Award Amount: $68,298.00


The Gen II Big Dog (LS3) requires a JP8/diesel-fueled engine to power its hydraulic pump. This 30-45kw engine and hydraulic pump must weigh less than 110 lbs and consume less than .66lbs/kw*hr. Cosworth proposes to adapt one of its a direct injection, compression ignition, 2-stroke cycle engines for this application. Cosworth's core business is the design, development, manufacture, test and deployment of high performance reciprocating internal combustion engines of various different fuel types. In Phase I Cosworth has 3 engine configurations that will be studied further using a variety of modelling and simulation programs. Cosworth will utilize its extensive knowledge gained on previous JP8 engine programs to do preliminary design work for these 3 configurations. A variety of FE, CFD and performance analysis will be conducted to determine the optimal engine configuration. In Phase II Cosworth will fabricate and test this engine configuration. In-house facilities including dynomometers, environmental test cells and materials laboratories will be used to validate the performance of the engine, first stand-alone, and then mounted with the hydraulic pump. It will then be mounted to the Big Dog and additional testing will be done to ensure that all programs objectives have been met including power output, fuel consumption, noise output and thermal management.

Principal Investigator:

John Vaughan
Principal Engineer

Business Contact:

Cory Parker
Director of Unmanned Syst
Small Business Information at Submission:

Cosworth LLC
3031 Fujita Street Torrance, CA 90505

EIN/Tax ID: 204028556
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No