LENGTH-ADJUSTABLE CONNECTING ROD WITH CONTROL DEVICE
First Claim
1. A length-adjustable connecting rod for a reciprocating piston engine, comprising:
- a hydraulic length-adjusting apparatus for adjusting an effective connecting rod length of the connecting rod;
a control device switchable between at least two switching states for controlling a lengthwise adjustment of the connecting rod;
wherein the hydraulic length-adjusting apparatus comprises a hydraulic cylinder with a piston, a first hydraulic working chamber, and a second hydraulic working chamber;
wherein the control device comprises a first valve and a second valve;
wherein the first valve of the control device is connected to the first hydraulic working chamber of the hydraulic length-adjusting apparatus in a fluid-communicating manner and the second valve of the control device is connected to the second hydraulic working chamber of the hydraulic length-adjusting apparatus in a fluid-communicating manner;
wherein the first valve can be actuated by means of a first hydraulically actuatable adjusting piston configured to move axially along a first adjusting axis and the second valve can be actuated by means of a second hydraulically actuatable adjusting piston configured to move axially along a second adjusting axis; and
wherein the first adjusting axis of the first valve of the control device differs from the second adjusting axis of the second valve of the control device.
1 Assignment
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Accused Products
Abstract
A length-adjustable connecting rod for a reciprocating piston machine, which may be a reciprocating piston internal combustion engine, is disclosed as well as a reciprocating piston machine and a vehicle. The connecting rod comprises a hydraulic length-adjusting device for adjusting an effective connecting rod length and a control device that can switch between two switching states, for controlling the length-adjusting device. The length-adjusting device comprises a hydraulic cylinder with a piston and a first hydraulic working chamber and a second hydraulic working chamber, the control device comprising a first valve and a second valve, the first valve of the control device being connected to the first hydraulic working chamber of the length-adjusting device in a fluid-communicating manner, and the second valve to the second hydraulic working chamber, the first valve and the second valve each being actuatable by means of a hydraulically actuatable adjusting piston that can axially move along an adjusting axis, the adjusting axis of the first valve being different from the adjusting axis of the second valve.
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20 Claims
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1. A length-adjustable connecting rod for a reciprocating piston engine, comprising:
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a hydraulic length-adjusting apparatus for adjusting an effective connecting rod length of the connecting rod; a control device switchable between at least two switching states for controlling a lengthwise adjustment of the connecting rod; wherein the hydraulic length-adjusting apparatus comprises a hydraulic cylinder with a piston, a first hydraulic working chamber, and a second hydraulic working chamber; wherein the control device comprises a first valve and a second valve; wherein the first valve of the control device is connected to the first hydraulic working chamber of the hydraulic length-adjusting apparatus in a fluid-communicating manner and the second valve of the control device is connected to the second hydraulic working chamber of the hydraulic length-adjusting apparatus in a fluid-communicating manner; wherein the first valve can be actuated by means of a first hydraulically actuatable adjusting piston configured to move axially along a first adjusting axis and the second valve can be actuated by means of a second hydraulically actuatable adjusting piston configured to move axially along a second adjusting axis; and wherein the first adjusting axis of the first valve of the control device differs from the second adjusting axis of the second valve of the control device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification