公开(公告)号：US3621878A

公开(公告)日：1971-11-23

申请号：US3621878D

申请日：1969-09-15

申请人： HAROLD CAIN SMITH

发明人： SMITH HAROLD CAIN

IPC分类号： F02D9/06 ,  F02D9/14 ,  F16K11/065 ,  F16K11/00

CPC分类号： F02D9/06 ,  F02D9/14 ,  F16K11/0655 ,  Y10T137/87161

摘要： The invention concerns an engine braking slide valve for use in a vehicle exhaust system between an exhaust manifold and a gasdriven impeller or turbine for driving a supercharged-type blower. The valve is characterized by a casing having a body portion and a cover portion between which a valve member is slidable to cover and uncover aligned ports in the body and cover portion, the valve member in being so slidable requiring a minimum of effort to move it between the open and ''''brake'''' position and being self-cleaning in operation.

公开(公告)号：US20060277385A1

公开(公告)日：2006-12-07

申请号：US11144256

申请日：2005-06-03

申请人： Christoph von Praun ,  Harold Cain

发明人： Christoph von Praun ,  Harold Cain

IPC分类号： G06F12/00

CPC分类号： G06F9/52 ,  G06F9/3004 ,  G06F9/30087 ,  G06F9/3834

摘要： A method and apparatus for conditional memory ordering are disclosed. The cost of memory ordering is reduced by determining circumstances in which a memory ordering operation is unnecessary and avoiding the overheads of these operations by reducing the frequency of invoking hardware memory ordering mechanisms. Hardware instructions for implementing a conditional memory ordering method and apparatus is described which may be implemented in a multiprocessor environment. The conditional memory ordering instruction executes locally using a release vector containing release numbers for each processor in the system. The instruction first determine whether a processor identifier of the release number is associated with the current processor. Where it is not, a conditional registered is examined and appropriate remote synchronization operations are commanded where necessary.

摘要翻译： 公开了一种用于条件存储器排序的方法和装置。 通过确定不需要存储器排序操作的情况来减少存储器排序的成本，并通过减少调用硬件存储器排序机制的频率来避免这些操作的开销。 描述了用于实现条件存储器排序方法和装置的硬件指令，其可以在多处理器环境中实现。 条件存储器排序指令使用包含系统中每个处理器的版本号的版本向量本地执行。 该指令首先确定释放号码的处理器标识符是否与当前处理器相关联。 如果不是，则检查条件注册，并在必要时命令适当的远程同步操作。