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US 7,018,003 B2Granted
Hydraulic unit for slip-controlled brake systems
AssigneeContinental Teves AG & Co. oHG
InventorsAlbrecht Otto, Dieter Dinkel
Life of this patent
Estimating the term…
Abstract
The present invention relates to a hydraulic unit for slip-controlled brake systems which includes a third row of valves in the accommodating member between a first row of valves having the valve-accommodating bores for the inlet valves and the second housing surface wherein the third row of valves includes at least in one valve-accommodating bore an electric change-over valve which is closed in its basic position and hydraulically linked to the pump-accommodating bore by way of a portion of a suction channel that traverses the first row of valves for connection to the pump-accommodating bore.
Claims13
Hydraulic unit for slip-controlled brake systems, comprising:
- an accommodating member having a first housing surface, a second housing surface angled relative to the first housing surface, and a third housing surface opposite to the second housing surface;
- a first row of inlet valve-accommodating bores that open into the first housing surface;
- a second row of outlet valve-accommodating bores that open into the first housing surface;
- at least one braking pressure generator port that opens into the second housing surface;
- at least one wheel brake port that opens into the second housing surface;
- a pump-accommodating bore arranged in the accommodating member and extending transversely to the inlet and outlet valve-accommodating bores, generally parallel to and between the first and second rows of valve-accommodating bores;
- a motor-accommodating bore arranged in the accommodating member and directed to the pump-accommodating bore;
- an accumulator-accommodating bore that opens into the third housing surface and extends transversely to the inlet and outlet valve-accommodating bores with the second row of valve-accommodating bores positioned between the accumulator-accommodating bore and the pump-accommodating bore;
- a third row of valve-accommodating bores arranged in the accommodating member between the first row of valve-accommodating bores and the second housing surface, the third row of valve-accommodating bores including an electric change-over valve-accommodating bore which is hydraulically linked to the pump-accommodating bore by way of a portion of a suction channel that traverses the first row of valve-accommodating bores;
- and
- a plurality of channels interconnecting the valve-, pump- and accumulator-accommodating bores and the at least one braking pressure generator port and the at least one wheel brake port to provide a hydraulic connection between the at least one braking pressure generator port and the at least one wheel brake port.
8 more elements
Hydraulic unit for slip-controlled brake systems, comprising:
- an accommodating member having a first housing surface, a second housing surface angled relative to the first housing surface, and a third housing surface opposite to the second housing surface;
- a first row of inlet valve-accommodating bores that open into the first housing surface;
- a second row of outlet valve-accommodating bores that open into the first housing surface;
- at least one braking pressure generator port that opens into the second housing surface;
- at least one wheel brake port that opens into the second housing surface;
- a pump-accommodating bore arranged in the accommodating member and extending transversely to the inlet and outlet valve-accommodating bores, generally parallel to and between the first and second rows of valve-accommodating bores;
- a motor-accommodating bore arranged in the accommodating member and directed to the pump-accommodating bore;
- an accumulator-accommodating bore that opens into the third housing surface and extends transversely to the inlet and outlet valve-accommodating bores with the second row of valve-accommodating bores positioned between the accumulator-accommodating bore and the pump-accommodating bore;
- a third row of valve-accommodating bores arranged in the accommodating member between the first row of valve-accommodating bores and the second housing surface, the third row of valve-accommodating bores including an electric change-over valve-accommodating bore which is hydraulically linked to the pump-accommodating bore by way of a portion of a suction channel that traverses the first row of valve-accommodating bores and a separating valve-accommodating bore which is connected to the electric change-over valve-accommodating bore;
- and
- a plurality of channels interconnecting the valve-, pump- and accumulator-accommodating bores and the at least one braking pressure generator port and the at least one wheel brake port to provide a hydraulic connection between the at least one braking pressure generator port and the at least one wheel brake port,
- wherein the separating valve-accommodating bore is connected to an inlet channel that leads to the first row of valve-accommodating bores and opens into the bottom of one of the valve-accommodating bores of the first row which is designed as a blind-end bore.
9 more elements
Hydraulic unit for slip-controlled brake systems, comprising:
- an accommodating member having a first housing surface, a second housing surface angled relative to the first housing surface, and a third housing surface opposite to the second housing surface;
- a first row of inlet valve-accommodating bores that open into the first housing surface;
- a second row of outlet valve-accommodating bores that open into the first housing surface;
- at least one braking pressure generator port that opens into the second housing surface;
- at least one wheel brake port that opens into the second housing surface;
- a pump-accommodating bore arranged in the accommodating member and extending transversely to the inlet and outlet valve-accommodating bores, generally parallel to and between the first and second rows of valve-accommodating bores;
- a motor-accommodating bore arranged in the accommodating member and directed to the pump-accommodating bore;
- an accumulator-accommodating bore that opens into the third housing surface and extends transversely to the inlet and outlet valve-accommodating bores with the second row of valve-accommodating bores positioned between the accumulator-accommodating bore and the pump-accommodating bore;
- a third row of valve-accommodating bores arranged in the accommodating member between the first row of valve-accommodating bores and the second housing surface, the third row of valve-accommodating bores including an electric change-over valve-accommodating bore which is hydraulically linked to the pump-accommodating bore by way of a portion of a suction channel that traverses the first row of valve-accommodating bores;
- and
- a plurality of channels interconnecting the valve-, pump- and accumulator-accommodating bores and the at least one braking pressure generator port and the at least one wheel brake port to provide a hydraulic connection between the at least one braking pressure generator port and the at least one wheel brake port,
- wherein a return channel opens into the bottom of the accumulator-accommodating bore, said return channel being connected at least to one of the second row outlet valve-accommodating bores and arranged directly adjacent to the accumulator-accommodating bore.
9 more elements
Dependencies are inferred from the claim text.