Westport Innovations Inc. has signed an agreement with Ford Motor Co. to support the automaker's hydrogen engine development program.

Under the agreement, Ford will purchase Vancouver, British Columbia-based Westport's fuel injection hardware, electronic controls and engineering support, including a set of prototype hydrogen fuel injectors.

Westport retains the intellectual property rights for the injector, which is a hydrogen-specific version of Westport's patented and proprietary direct injection technology for light-duty natural gas engines.

The cost of Ford's program was not disclosed.

Westport and Ford had worked together on the light-duty natural gas engine project, but the deal expired last year when the automaker cut spending on some of its alternative energy development efforts.