Robert Edwar Halvorsen

US Patent:

49384171, Jul 3, 1990

Filed:

Apr 12, 1989

Appl. No.:

7/336773

Inventors:

Robert M. Halvorsen - Birmingham MI

Assignee:

Fuel Systems Textron Inc. - Walled Lake MI

International Classification:

B05B 710
B05B 706

US Classification:

239 5

Abstract:

An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving chamber and a fuel discharge orifice downstream thereof and an arcuate, distensible, tubular valve member having a discharge end movable relative to a valve seat in the fuel receiving chamber in dependence on the pressure of fuel in the valve member to meter fuel to the fuel receiving chamber for discharge through the discharge orifice into a combustor.

US Patent:

47426853, May 10, 1988

Filed:

Nov 4, 1986

Appl. No.:

6/926492

Inventors:

Robert M. Halvorsen - Birmingham MI
Jerome R. Bradley - Sterling Heights MI
Gregory F. Long - Canton MI

Assignee:

Ex-Cell-O Corporation - Troy MI

International Classification:

F02C 100

US Classification:

60739

Abstract:

The fuel distributing and metering assembly provides separate multiple metered fuel flows from a common fuel reservoir by including a rotary valve having multiple valve metering slots for generating separate multiple fuel flows, a valve seat having multiple seat orifices relative to which the valve metering slots are moved for metering the multiple fuel flows, and multiple fuel discharge paths for conducting multiple fuel flows to each of a plurality of fuel injection devices. Each fuel discharge path to each fuel injection device includes multiple upstream transversely spaced discharge passages and multiple downstream discharge passages nested longitudinally one inside the other with the inner downstream discharge passage aligned beneath its associated upstream discharge passage and another downstream discharge passage therearound being transversely displaced relative to its associated upstream discharge passage. A transverse discharge passage is provided inter-connecting each transversely displaced outer downstream discharge passage with its associated upstream discharge passage. Separately metered primary and secondary fuel flows can be thereby provided to each of a plurality of fuel injection devices, such as nozzles, spraybars and the like, connected to the assembly.

US Patent:

51745046, Dec 29, 1992

Filed:

Dec 7, 1990

Appl. No.:

7/624080

Inventors:

Robert M. Halvorsen - Birmingham MI

Assignee:

Fuel Systems Textron, Inc. - Walled Lake MI

International Classification:

B05B 710

US Classification:

239410

Abstract:

An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving chamber and an arcuate valve member movable relative to a valve seat member having a fuel discharge port for discharging fuel flow into the fuel receiving chamber as metered by said valve member in dependence on the pressure of fuel. The valve member comprises an arcuate reed-type valve received in a generally cylindrical tubular valve seat insert with the flow area of the fuel discharge port adjustable externally of the valve seat insert for adjusting the valve cracking pressure.

US Patent:

44912722, Jan 1, 1985

Filed:

Jan 27, 1983

Appl. No.:

6/461407

Inventors:

Jerome R. Bradley - Sterling Heights MI
Robert M. Halvorsen - Birmingham MI
Jeffrey B. Hurst - Troy MI
Gregory F. Long - Canton MI

Assignee:

Ex-Cell-O Corporation - Troy MI

International Classification:

F02C 722

US Classification:

239 5

Abstract:

A pressure atomizing fuel nozzle assembly for a gas turbine engine includes a support housing in which a pressure-responsive fuel check valve and metering valve are disposed in line to provide a flow of primary fuel for engine start-up and low power operation and secondary fuel for higher power operation. The check valve is located upstream between the fuel inlet and a sleeve inside of which the metering valve is disposed. The check valve prevents the fuel manifold from draining after engine shut-down and controls fuel entry to both the secondary fuel chamber within the sleeve and to an annular primary fuel chamber between the sleeve and support housing connected in fuel flow relation to the secondary chamber by a fuel filter. The primary fuel flows through the primary chamber around the exterior of the secondary chamber and through an annular primary fuel conduit disposed around the secondary fuel conduit in the housing strut to the nozzle attached to the strut. The secondary fuel flow is controlled by the downstream metering valve in the sleeve and flows interiorly of the primary fuel to the nozzle.

US Patent:

45907684, May 27, 1986

Filed:

Dec 22, 1983

Appl. No.:

6/564268

Inventors:

Robert M. Halvorsen - Birmingham MI
Jeffrey B. Hurst - Troy MI

Assignee:

Ex-Cell-O Corporation - Troy MI

International Classification:

F02C 722

US Classification:

60741

Abstract:

A gas turbine engine fuel distribution system includes a fuel distribution valve having a single fuel inlet and a plurality of fuel discharge ports, each of which are connected by an individual fuel manifold to the inlet of an engine fuel injector. The distribution valve has identical fuel metering holes for distributing meter fuel flow to each manifold and injector and an adjustable flow control plug located downstream of the fuel metering holes is accessible during fuel flow through the system to adjust for system inequalities to balance the system during its operation.

US Patent:

51972905, Mar 30, 1993

Filed:

Mar 26, 1990

Appl. No.:

7/499023

Inventors:

Fei P. Lee - Novi MI
Theodore R. Koblish - Birmingham MI
Robert M. Halvorsen - Birmingham MI

Assignee:

Fuel Systems Textron Inc. - Zeeland MI

International Classification:

F02C 100

US Classification:

60748

Abstract:

The gas turbine combustor air swirler includes a spring temper swirler member having a plurality of air control doors or vanes so cut therein about the longitudinal axis of the combustor inlet as to be integrally and resiliently pivotally connected to the swirler member. The air control doors are progressively canted open to provide predetermined air flow rate and air swirl angle to the combustor inlet in response to increases in air pressure differential thereacross resulting from progressive increases in fuel flow through the nozzle during various regimes of engine operation. The swirler is free of linkages and sliding or other contacting components that are susceptible to binding and other malfunctions in service in the engine.

US Patent:

49628895, Oct 16, 1990

Filed:

Apr 12, 1989

Appl. No.:

7/336774

Inventors:

Robert M. Halvorsen - Birmingham MI

Assignee:

Fuel Systems Textron Inc. - Walled Lake MI

International Classification:

B05B 710
B05B 706

US Classification:

239410

Abstract:

An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characterisitics of the injector tip. The injector tip includes a fuel receiving chamber and an arcuate valve member movable relative to a valve seat member having a fuel discharge port for discharging fuel flow into the fuel receiving chamber as metered by the valve member in dependence on the pressure of fuel. The valve seat member is adjustably received on the injector tip and preferably includes a deflectable portion accessible externally of the injector tip for facilitating adjustment of the valve cracking pressure.

US Patent:

50149180, May 14, 1991

Filed:

Apr 12, 1989

Appl. No.:

7/336856

Inventors:

Robert M. Halvorsen - Birmingham MI

Assignee:

Fuel Systems Textron Inc. - Walled Lake MI

International Classification:

B05B 710

US Classification:

239410

Abstract:

An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving chamber and an arcuate valve member movable relative to a valve seat member having a fuel discharged port for discharging fuel flow into the fuel receiving chamber as metered by said valve member in dependence on the pressure of fuel. The valve member comprises an arcuate reed-type valve received in a generally cylindrical tubular valve seat insert with the flow area of the fuel discharge port adjustable externally of the valve seat insert for adjusting the valve cracking pressure.