Lockheed Martin has been granted a patent for an ejector member that includes an annular member, a vent with an inlet and outlet, and a vane. The outlet of the vent has at least three planar facets arranged at non-linear angles. The invention aims to improve the performance of ejector members. GlobalData’s report on Lockheed Martin gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Lockheed Martin, hydrogen fuel cells was a key innovation area identified from patents. Lockheed Martin's grant share as of September 2023 was 68%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for an ejector member with a vent and vane

Source: United States Patent and Trademark Office (USPTO). Credit: Lockheed Martin Corp

A recently granted patent (Publication Number: US11772783B2) describes an ejector member and ejector assembly for use in an engine exhaust system of a rotary-wing aircraft. The ejector member includes an annular member with a vent that has an inlet at one surface and an outlet at a second surface. The outlet of the vent is designed with at least three planar facets, arranged at non-linear angles to each other. The ejector member also includes a vane extending radially inward from the second surface of the annular member.

The patent also describes an ejector assembly that includes an engine exhaust frame with a first and second casing. An annular member is attached to the second casing and includes multiple vents, each with an inlet and outlet designed with the same non-linear angles as described in the ejector member. The assembly also includes multiple vanes extending radially inward from the annular member.

Furthermore, the patent discusses a rotary-wing aircraft that incorporates the ejector assembly. The aircraft includes a rotor and a turbine engine for driving the rotor. The exhaust system of the aircraft includes an engine exhaust frame with a first and second casing, an annular member attached to the second casing, and multiple vents with non-linear angled outlets. The aircraft also includes vanes extending radially inward from the annular member.

The patent highlights the use of non-linear angled outlets in the vents of the ejector member and ejector assembly. This design may improve the efficiency of the exhaust system by enhancing the flow of exhaust gases. The inclusion of vanes in the ejector member and assembly may further optimize the exhaust flow.

Overall, this patent provides a detailed description of an ejector member, ejector assembly, and their application in a rotary-wing aircraft's exhaust system. The unique design of the vents and the inclusion of vanes aim to improve the efficiency of the exhaust system, potentially leading to enhanced performance and fuel efficiency in rotary-wing aircraft.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.