Fluid flow regulator

A fluid flow regulator, comprising a tubular housing defining a passage for the flow of a fluid medium in a predetermined direction;

• shaft means mounted in said housing and defining a pivot axis extending substantially diametrically of said passage;
• a valving element mounted on said shaft means in said passage, said element including two mutually inclined sections and being turnable by the fluid medium between spaced apart first and second end positions in which said element respectively permits and at least substantially prevents the flow of fluid medium through said passage;
• and means for restricting the flow of fluid medium in said passage upstream of said valving element, as considered in said direction, said flow restricting means defining at least one channel which directs at least one stream of fluid medium against said valving element, the cross-sectional area of said channel being less than the cross-sectional area of said passage and such that the fluid medium flowing through said channel in said direction impinges only upon a portion of at least one of said sections of said valving element.

The fluid flow regulator ofclaim 5, wherein said flow restricting means comprises a diaphragm installed in said housing upstream of said valving element, said diaphragm having at least one aperture which directs the fluid medium against said valving element.

A fluid flow regulator, comprising a tubular housing defining a passage for the flow of a fluid medium in a predetermined direction;

• shaft means mounted in said housing and defining a pivot axis extending substantially diametrically of said passage;
• a valving element mounted on said shaft means in said passage, said element including two mutually inclined sections and being turnable by the fluid medium between spaced apart first and second end positions in which said element respectively permits and prevents the flow of fluid medium through said passage;
• and means for restricting the flow of fluid medium in said passage upstream of said valving element, as considered in said direction, said flow restricting means including two spaced apart inserts in said passage flanking said valving element and defining at least one channel which is disposed between said inserts, whose cross-sectional area is less than the cross-sectional area of said passage, and which directs at least one stream of fluid medium against said valving element.

A fluid flow regulator, comprising a tubular housing defining a passage for the flow of a fluid medium in a predetermined direction;

• shaft means mounted in said housing and defining a pivot axis extending substantially diametrically of said passage;
• a valving element mounted on said shaft means in said passage, said element including two mutually inclined sections and being turnable by the fluid medium between spaced apart first and second end positions in which said element respectively permits and prevents the flow of fluid medium through said passage;
• and means for restricting the flow of fluid medium in said passage upstream of said valving element, as considered in said direction, said flow restricting means defining at least one channel whose cross-sectional area is less than the cross-sectional area of said passage and varies as considered transversely of said direction, and which directs at least one stream of fluid medium against said valving element.

A fluid flow regulator, comprising a tubular housing defining a passage for the flow of a fluid medium in a predetermined direction;

• shaft means mounted in said housing and defining a pivot axis;
• a valving element mounted on said shaft means in said passage, said element being turnable by the fluid medium between spaced apart first and second end positions in which said element respectively permits and considerably hinders if not fully prevents the flow of fluid medium through said passage;
• and means for restricting the flow of fluid medium in said passage upstream of said valving element, as considered in said direction, said flow restricting means including two spaced apart inserts in said passage flanking said valving element and defining at least one channel which is disposed between said inserts, whose cross-sectional area is less than the cross-sectional area of said passage, and which directs at least one stream of fluid medium against said valving element.