Abstract:
A control valve assembly (24, 26) includes a valve body (40) having a valve opening (42), a first pressure passage (44), a second pressure passage (46), and a valve body land (50). A valve member (52) is received in the valve opening (42) for movement between an open position and a closed position. The valve member (52) includes a first valve member land (54) and a second valve member land (56). The first valve member land (54) and the valve body land (50) cooperate to define a first metering flow passage (60) and a second metering flow passage (62). The first and second metering flow passages (60, 62) are configured to impart a hydrodynamic force on the valve member (52) during fluid flow through the valve body (40), which biases the valve member (52) toward the open position or the closed position.
Abstract:
A valve is provided including a first valve member and a second valve member. The first valve member includes a first step and a first orifice adjacent the first step. The second valve member includes a second step and a second orifice adjacent the second step. The second valve member is movable relative to the first valve member between an open position, in which the first orifice is fluidly connected the second orifice, and a closed position, in which the first orifice is substantially fluidly disconnected from the second orifice. The first and second steps are fluidly connected to the second orifice and substantially fluidly disconnected from the first orifice when the second valve member is in the closed position, and the first and second steps are fluidly connected to the first and second orifices when the second valve member is in the open position.
Abstract:
A pressure swirl atomizer has a swirl chamber with an exit orifice and a plurality of tangential swirl channels disposed around the circumference of the swirl chamber. A pintle bearing surrounds a pintle. The pintle has a body portion and a nose portion that is narrower than the body portion. The nose portion has a tip that opens and closes the exit orifice and a side that is movable in the pintle bearing. In one embodiment, a return path formed between the nose portion of the pintle and the pintle bearing drains fluid from the swirl chamber when the exit orifice is closed. The nose portion positions the return path closer to a centerline of the atomizer, forcing fluid to swirl in the swirl chamber before draining. Since the fluid does not remain static in the chamber, less energy is needed to increase the fluid velocity and quickly form a desired spray pattern when the exit orifice is opened.
Abstract:
A hydraulic circuit (10) in fluid communication with an added motion valve system (100) is disclosed. The hydraulic circuit (10) in fluid communication with an added motion valve system (100) includes at least a first valve (20a) that permits flow of a fluid (11) in a first fluid supply channel (50a) to an added motion actuator volume (104) by way of a first fluid port (36) and a second fluid port (38) and at least a second valve (20b) that permits flow of the fluid (11) in a second fluid supply channel (50b) to the first fluid port (36), the second fluid port (38), and a third fluid port (40). A method for controlling a hydraulic circuit (10) in fluid communication with an added motion valve system (100) is also disclosed.