SWIRLING PINTLE INJECTORS
First Claim
1. An injector comprising:
- a housing including a fluid passage extending from an inlet of the housing to an outlet end of the housing;
an actuator mounted to the housing;
a pintle extending along a longitudinal axis from an actuator end to a pintle head, wherein the actuator end of the pintle is operatively connected to the actuator for actuation of the pintle along the longitudinal axis; and
a tip member mounted to the outlet end of the housing, wherein the tip member includes an outlet orifice and a pintle seat, wherein in a seated position of the pintle, the pintle head seals against the pintle seat blocking flow to the outlet orifice, and in an open position of the pintle, the pintle head is spaced apart from the pintle seat, opening a flow path through the outlet orifice,wherein the pintle head includes a swirl passage therein, wherein the swirl passage is angled tangential relative to the longitudinal axis to induce swirl on flow passing between the pintle head and the pintle seat in the open position.
1 Assignment
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Accused Products
Abstract
An injector includes a housing including a fluid passage extending from an inlet of the housing to an outlet end of the housing. An actuator is mounted within the housing. A pintle extends along a longitudinal axis from an actuator end to a pintle head. The actuator end of the pintle is operatively connected to the actuator for actuation along the longitudinal axis. A tip member is mounted to the outlet end of the housing. The tip member includes an outlet orifice and a pintle seat. In a seated position of the pintle, the pintle head blocks flow to the outlet orifice. In an open position of the pintle, the pintle head allows flow. The pintle head includes a swirl passage therein, wherein the swirl passage is angled tangential relative to the longitudinal axis to induce swirl on flow passing between the pintle head and the pintle seat.
1 Citation
20 Claims
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1. An injector comprising:
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a housing including a fluid passage extending from an inlet of the housing to an outlet end of the housing; an actuator mounted to the housing; a pintle extending along a longitudinal axis from an actuator end to a pintle head, wherein the actuator end of the pintle is operatively connected to the actuator for actuation of the pintle along the longitudinal axis; and a tip member mounted to the outlet end of the housing, wherein the tip member includes an outlet orifice and a pintle seat, wherein in a seated position of the pintle, the pintle head seals against the pintle seat blocking flow to the outlet orifice, and in an open position of the pintle, the pintle head is spaced apart from the pintle seat, opening a flow path through the outlet orifice, wherein the pintle head includes a swirl passage therein, wherein the swirl passage is angled tangential relative to the longitudinal axis to induce swirl on flow passing between the pintle head and the pintle seat in the open position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An injector member comprising:
a pintle extending along a longitudinal axis from an actuator end to a pintle head, wherein the actuator end of the pintle is configured to be operatively connected to an actuator for actuation of the pintle along the longitudinal axis, wherein the pintle head includes a swirl passage therein, wherein the swirl passage is angled tangential relative to the longitudinal axis to induce swirl on flow passing between the pintle head and a pintle seat of an injector. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
Specification