摘要:
Disclosed herein is a novel fuel cell stack assembly. In one embodiment, the stacks of the present invention comprise: a first and a second end plate; a plurality of fuel cells interposed between the first and second end plates, at least one of the fuel cells having a unitized MEA assembly and/or a compound flow field; a means to separate neighboring fuel cell components; and a compression means.
摘要:
The present invention comprises a unitized MEA assembly for use in a fuel cell or a fuel cell stack assembly. In the embodiments of the invention, the MEA is made integral to the frame to reduce certain risks and disadvantages associated with nonstabilized MEAs in fuel cell applications. Specifically disclosed are two preferred embodiments of the unitized MEA assembly of the present invention and methods for making same.
摘要:
An improved proton exchange membrane fuel cell assembly and fuel cell stack assembly are provided for the economical and efficient production of electricity. The present invention comprises improved flow fields, which provide improved and more efficient mass transport of the reactants in the fuel cell and the fuel cell stack assembly. The improved flow fields comprise three-dimensional open-cell foamed metals that are preferably plated with gold. The improved reactant supply system comprises an improved distribution frame to house fuel cells wherein the reactants are directly connected to the improved flow fields.
摘要:
A tool assembly for performing a wellbore operation including an actuatable tool, a location device, and on-board controller are together dimensioned and arranged to be deployed in the wellbore as an autonomous unit. The actuatable tool, such as a perforating gun having associated charges, perforates a wellbore along a selected zone of interest. The location device, such as casing collar locator, senses the location of the actuatable tool based on a physical signature provided along the wellbore. The on-board controller or micro-processor is configured to send an activation signal to the actuatable tool when the location device has recognized a selected location of the tool based on the physical signature. The tool assembly further includes a multi-gate safety system. The safety system prevents premature activation of the actuatable tool.
摘要:
A blade for a wind turbine has a surface with a first color band and a second color band and a third color band thereon in spaced relationship to each other. A luminescent band extends in the space between said first, second and third color bands. The first, second and third color bands are of different colors. The luminescent band extends around a periphery of each of first, second and third color bands. The first color band is a red color. The second color band is a white color. The third color band is a blue color.
摘要:
An improved proton exchange membrane fuel cell system is provided for the economical and efficient production of electricity. The fuel cell system provides a plurality of fuel cell stacks that substantially surround a reformer assembly.
摘要:
A tool assembly for performing a wellbore operation including an actuatable tool, a location device, and on-board controller are together dimensioned and arranged to be deployed in the wellbore as an autonomous unit. The actuatable tool, such as a perforating gun having associated charges, perforates a wellbore along a selected zone of interest. The location device, such as casing collar locator, senses the location of the actuatable tool based on a physical signature provided along the wellbore. The on-board controller or micro-processor is configured to send an activation signal to the actuatable tool when the location device has recognized a selected location of the tool based on the physical signature. The tool assembly further includes a multi-gate safety system. The safety system prevents premature activation of the actuatable tool.
摘要:
A tool assembly for performing a wellbore operation including an actuatable tool, a location device, and on-board controller are together dimensioned and arranged to be deployed in the wellbore as an autonomous unit. The actuatable tool, such as a perforating gun having associated charges, perforates a wellbore along a selected zone of interest. The location device, such as casing collar locator, senses the location of the actuatable tool based on a physical signature provided along the wellbore. The on-board controller or micro-processor is configured to send an activation signal to the actuatable tool when the location device has recognized a selected location of the tool based on the physical signature. The tool assembly further includes a multi-gate safety system. The safety system prevents premature activation of the actuatable tool.
摘要:
An improved proton exchange membrane fuel cell assembly and fuel cell stack assembly are provided for the economical and efficient production of electricity. The present invention comprises improved flow fields and reactant supply systems, which provide improved and more efficient mass transport of the reactants in the fuel cell and the fuel cell stack assembly. The improved flow fields comprise three-dimensional open-cell foamed metals that are preferably plated with gold. The improved reactant supply system comprises an improved distribution frame to house fuel cells wherein the reactants are directly connected to the improved flow fields.
摘要:
A safety belt coupling device which comprises components mutually attached by a heat degradable adhesive, such as a low-melting solder. At a predetermined temperature, degradation of the adhesive occurs, which allows the components to separate and thus release the safety belt.