Vortex channel
AssigneeBorgWarner Inc.
InventorsMatthew W. Crump, Keith B. Cobb
Life of this patent
Estimating the term…
Abstract
A product for applying tension is disclosed. The product may include a block with a first bore opening into to the block. A body may be provided having a second bore substantially larger in diameter than the first bore. The body may be positioned against the block so that the first bore is open to the second bore. The body may have a passage for providing fluid to a pressure chamber from the second bore. The passage may be arranged to open to the second bore and form a tangent to the second bore. Fluid may flow from the first bore to the pressure chamber through the second bore and the passage substantially unimpeded. Fluid flow is impeded from the passage to the first bore as a result of the configuration of the first bore, second bore and passage.
Claims20
A product for applying tension comprising:
- a block with a first bore opening into the block;
- a body having a second bore that is substantially larger in diameter than the first bore, the body positioned against the block so that the first bore is open to the second bore;
- the body having a passage for providing fluid from the second bore to a pressure chamber, wherein the passage is arranged to open to the second bore and form a tangent to the second bore;
- wherein fluid flows from the first bore to the pressure chamber through the second bore and the passage substantially unimpeded and fluid flow is impeded from the passage to the first bore as a result of the configuration of the first bore, the second bore and the passage.
A product for applying tension comprising:
- a body connected to a block, the body having a main bore;
- a piston slidably disposed in the main bore, the piston having a first end that extends out of the main bore and having a second end disposed in the main bore;
- a first chamber in the main bore adjacent the second end of the piston;
- a first cross bore in the body opening to the first chamber;
- a second cross bore in the body, the second cross bore having an axis, and the second cross bore substantially larger than the first cross bore, and the second cross bore being spaced apart from and parallel to the first bore;
- a first passage extending through the body between the first and second cross bores, the first passage forming a tangent to the second cross bore;
- and, a second passage in the block opening to, and coaxial with, the second cross bore, and the second passage opening to a pressurized fluid chamber in the block;
- wherein pressurized fluid from the pressurized fluid chamber enters the first chamber through a path including the second passage, the second cross bore, the first passage and the first cross bore, as the piston moves out of the first cross bore;
- wherein a force on the piston causes fluid to flow from the first chamber through the first cross bore, the first passage, the second cross bore, and the second passage to the pressurized fluid chamber.
A hydraulic tensioner for applying force to a component of an engine comprising:
- a body having a piston bore with a cylindrical shape, the piston bore having a first diameter, and the body having a main chamber with a cylindrical shape, the main chamber having a second diameter;
- a piston slidably disposed in the piston bore defining a first chamber in the piston bore between the body and the piston;
- a first passage in the body extending between the piston bore and the main chamber, at least part of the first passage forming a tangent to the main chamber;
- and a second passage in the engine opening to the main chamber, the second passage being coaxial with the main chamber.
Dependencies are inferred from the claim text.